IBM DS4200 Installation, User's, And Maintenance Manual

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IBM System Storage DS4200 Express Storage Subsystem

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Installation, User’ s an d Maintenance Guid e

GC27-2048-00

IBM System Storage DS4200 Express Storage Subsystem



Installation, User’ s an d Maintenance Guid e

GC27-2048-00

Note:

Before using this information and the product it supports, be sure to read the general information in “Notices” on page 171.

US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi

About this document . . . . . . . . . . . . . . . . . . . . . xvii

Who should read this document . . . . . . . . . . . . . . . . . . xvii

How this document is organized . . . . . . . . . . . . . . . . . . xvii

DS4000 Storage Subsystem installation tasks - General overview . . . . . . xviii

Getting information, help, and service . . . . . . . . . . . . . . . . xxi

Before you call . . . . . . . . . . . . . . . . . . . . . . . . xxi

Using the documentation . . . . . . . . . . . . . . . . . . . . xxii

Web sites . . . . . . . . . . . . . . . . . . . . . . . . . xxii

Software service and support . . . . . . . . . . . . . . . . . . xxii

Hardware service and support . . . . . . . . . . . . . . . . . . xxiii

Fire suppression systems . . . . . . . . . . . . . . . . . . . xxiii

How to send your comments . . . . . . . . . . . . . . . . . . xxiii

Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . .1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Models . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Operating system support . . . . . . . . . . . . . . . . . . . .2

Fibre channel defined . . . . . . . . . . . . . . . . . . . . . .2

SATA defined . . . . . . . . . . . . . . . . . . . . . . . . .2

Inventory checklist . . . . . . . . . . . . . . . . . . . . . . . .3

Product updates . . . . . . . . . . . . . . . . . . . . . . . . .4

Best practices guidelines . . . . . . . . . . . . . . . . . . . . . .5

Storage subsystem components . . . . . . . . . . . . . . . . . . .6

Enhanced Value Disk Drive Modules (EV-DDMs) . . . . . . . . . . . .6

Controllers . . . . . . . . . . . . . . . . . . . . . . . . . .8

Connectors, switch, and enclosure ID . . . . . . . . . . . . . . .8

Power supply and fan units . . . . . . . . . . . . . . . . . . . .9

Battery units . . . . . . . . . . . . . . . . . . . . . . . . .11

SFP modules . . . . . . . . . . . . . . . . . . . . . . . .13

Software and hardware compatibility and upgrades . . . . . . . . . . .13

Software and firmware support code upgrades . . . . . . . . . . . .13

DS4200 Express hardware and software compatibility . . . . . . . . .14

Determining firmware levels . . . . . . . . . . . . . . . . . . .14

Specifications . . . . . . . . . . . . . . . . . . . . . . . . .16

Area requirements . . . . . . . . . . . . . . . . . . . . . .16

Dimensions . . . . . . . . . . . . . . . . . . . . . . . .16

Weight . . . . . . . . . . . . . . . . . . . . . . . . . .16

Shipping dimensions . . . . . . . . . . . . . . . . . . . . .17

Environmental requirements and specifications . . . . . . . . . . . .17

Temperature and humidity . . . . . . . . . . . . . . . . . . .17

Altitude . . . . . . . . . . . . . . . . . . . . . . . . . .17

Airflow and heat dissipation . . . . . . . . . . . . . . . . . .18

Acoustic noise . . . . . . . . . . . . . . . . . . . . . . .18

Electrical requirements . . . . . . . . . . . . . . . . . . . . .19

Site wiring and power . . . . . . . . . . . . . . . . . . . .19

AC power recovery . . . . . . . . . . . . . . . . . . . . .20

Power cords and receptacles . . . . . . . . . . . . . . . . . .20

Heat output, airflow, and cooling . . . . . . . . . . . . . . . . .20

Chapter 2. Installing the storage subsystem . . . . . . . . . . . . .23

Installation overview . . . . . . . . . . . . . . . . . . . . . . .23

Handling static-sensitive devices . . . . . . . . . . . . . . . . . .25

Preparing for installation . . . . . . . . . . . . . . . . . . . . .25

Tools and hardware required . . . . . . . . . . . . . . . . . . .27

Preparing the site . . . . . . . . . . . . . . . . . . . . . . .27

Preparing the rack cabinet . . . . . . . . . . . . . . . . . . . .27

Installing the support rails . . . . . . . . . . . . . . . . . . . . .28

Installing the DS4200 Express . . . . . . . . . . . . . . . . . . .32

Removing the CRUs . . . . . . . . . . . . . . . . . . . . . .32

Removing a controller . . . . . . . . . . . . . . . . . . . .33

Removing a power supply and fan unit . . . . . . . . . . . . . .34

Removing an EV-DDM . . . . . . . . . . . . . . . . . . . .35

Installing the DS4200 Express into a rack on the support rails . . . . . .36

Replacing the components . . . . . . . . . . . . . . . . . . .38

Replacing a controller . . . . . . . . . . . . . . . . . . . .38

Replacing a power supply and fan unit . . . . . . . . . . . . . .39

Replacing an EV-DDM . . . . . . . . . . . . . . . . . . . .40

Chapter 3. Cabling the storage subsystem . . . . . . . . . . . . . .43

Enclosure ID settings . . . . . . . . . . . . . . . . . . . . . .43

Fibre-channel loop and ID settings . . . . . . . . . . . . . . . . . .44

Working with SFPs and fiber-optic cables . . . . . . . . . . . . . . .44

Handling fiber-optic cables . . . . . . . . . . . . . . . . . . .44

Installing SFP modules . . . . . . . . . . . . . . . . . . . . .45

Removing SFP modules . . . . . . . . . . . . . . . . . . . .47

Using LC-LC fibre-channel cables . . . . . . . . . . . . . . . . .48

Connecting an LC-LC cable to an SFP module . . . . . . . . . . .48

Removing an LC-LC fibre-channel cable . . . . . . . . . . . . .50

Using LC-SC fibre-channel cable adapters . . . . . . . . . . . . . .51

Connecting an LC-SC cable adapter to a device . . . . . . . . . .51

Removing an LC-LC cable from an LC-SC cable adapter . . . . . . .53

Connecting storage expansion enclosures to the DS4200 Express . . . . . .54

Redundant drive channel pair . . . . . . . . . . . . . . . . . .55

Overview of steps to connect storage expansion enclosures to a storage

subsystem . . . . . . . . . . . . . . . . . . . . . . . . .56

DS4200 Express Storage Subsystem drive cabling topologies . . . . . .57

One DS4200 Express and one storage expansion enclosure . . . . . .58

One DS4200 Express and two storage expansion enclosures . . . . . .59

One DS4200 Express and three storage expansion enclosures . . . . .61

One DS4200 Express and four storage expansion enclosures . . . . .61

One DS4200 Express and up to six storage expansion enclosures . . . .61

DS4200 Express Storage Subsystem and supported storage expansion

enclosure drive cabling schemes . . . . . . . . . . . . . . . .63

One DS4200 Express and one EXP420 storage expansion enclosure . . .64

One DS4200 Express and two EXP420 storage expansion enclosures 64

One DS4200 Express and three or more EXP420 storage expansion

enclosures . . . . . . . . . . . . . . . . . . . . . . . .65

Storage expansion enclosure settings . . . . . . . . . . . . . . .69

Fibre channel loop and ID settings . . . . . . . . . . . . . . . .69

DS4000 storage expansion enclosure ID settings . . . . . . . . . .69

Connecting secondary interface cables . . . . . . . . . . . . . . . .69

Configuring the storage subsystem . . . . . . . . . . . . . . . . .70

Storage subsystem management methods . . . . . . . . . . . . . .70

iv IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Host-agent (in-band) management method . . . . . . . . . . . . .71

Direct (out-of-band) management method . . . . . . . . . . . . .71

Connecting hosts to the DS4200 Express . . . . . . . . . . . . . .72

Fibre channel connections . . . . . . . . . . . . . . . . . . . .74

Fibre channel host loop configurations . . . . . . . . . . . . . . .74

Redundant host and drive loops . . . . . . . . . . . . . . . .75

Installing the storage subsystem configuration . . . . . . . . . . . . .77

Cabling the power supply . . . . . . . . . . . . . . . . . . . . .78

Chapter 4. Operating the storage subsystem . . . . . . . . . . . . .79

Performing the DS4000 Health Check process . . . . . . . . . . . . .79

Web pages . . . . . . . . . . . . . . . . . . . . . . . . .80

Hardware responsibilities . . . . . . . . . . . . . . . . . . . .80

Powering on the storage subsystem . . . . . . . . . . . . . . . . .81

Turning on the storage subsystem . . . . . . . . . . . . . . . . .81

Installing the DS4000 Storage Manager client . . . . . . . . . . . . .84

Monitoring status through software . . . . . . . . . . . . . . . . .84

Finding controller, storage expansion enclosure, and drive information . . .86

Firmware updates . . . . . . . . . . . . . . . . . . . . . . .86

Troubleshooting the storage subsystem . . . . . . . . . . . . . .87

Checking the LEDs . . . . . . . . . . . . . . . . . . . . . . .88

Power supply and fan unit LEDs . . . . . . . . . . . . . . . . .88

Front LEDs . . . . . . . . . . . . . . . . . . . . . . . . .89

Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . .90

Controller LEDs . . . . . . . . . . . . . . . . . . . . . . .91

Seven-segment numeric display LEDs . . . . . . . . . . . . . . .93

Powering off the storage subsystem . . . . . . . . . . . . . . . . .94

Turning off the storage subsystem . . . . . . . . . . . . . . . . .94

Performing an emergency shutdown . . . . . . . . . . . . . . . .97

Restoring power after an unexpected shutdown . . . . . . . . . . . .97

Recovering from an overheated power supply and fan unit . . . . . . . . .98

Cache memory and cache battery . . . . . . . . . . . . . . . . . 101

Cache memory . . . . . . . . . . . . . . . . . . . . . . . 101

Subsystem cache battery . . . . . . . . . . . . . . . . . . . 102

Chapter 5. Replacing components . . . . . . . . . . . . . . . . 105

Handling static-sensitive devices . . . . . . . . . . . . . . . . . . 105

Service Action Allowed Status LED . . . . . . . . . . . . . . . . . 105

Replacing a controller . . . . . . . . . . . . . . . . . . . . . . 106

Working with hot-swap EV-DDMs . . . . . . . . . . . . . . . . . .110

Installing hot-swap EV-DDMs . . . . . . . . . . . . . . . . . .112

Replacing hot-swap EV-DDMs . . . . . . . . . . . . . . . . . .114

Replacing multiple EV-DDMs . . . . . . . . . . . . . . . . . .115

Replacing all EV-DDMs at the same time . . . . . . . . . . . . .116

Replacing the EV-DDMs one at a time . . . . . . . . . . . . . .118

Verifying the Link Rate setting . . . . . . . . . . . . . . . . . . 120

Replacing a power supply and fan unit . . . . . . . . . . . . . . . . 123

Replacing a battery unit . . . . . . . . . . . . . . . . . . . . . 128

Replacing an SFP module . . . . . . . . . . . . . . . . . . . . 130

Replacing a midplane . . . . . . . . . . . . . . . . . . . . . . 131

Chapter 6. Hardware maintenance . . . . . . . . . . . . . . . . 135

General checkout . . . . . . . . . . . . . . . . . . . . . . . 135

Solving problems . . . . . . . . . . . . . . . . . . . . . . . 135

Parts listing . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Contents v

Appendix A. Records . . . . . . . . . . . . . . . . . . . . . 143

Identification numbers . . . . . . . . . . . . . . . . . . . . . . 143

Storage subsystem and controller information record . . . . . . . . . . 143

Sample information record . . . . . . . . . . . . . . . . . . . 145

Installed device records . . . . . . . . . . . . . . . . . . . . . 146

Appendix B. Rack mounting template . . . . . . . . . . . . . . . 147

Appendix C. Power cords . . . . . . . . . . . . . . . . . . . . 149

Appendix D. Additional DS4000 documentation . . . . . . . . . . . 153

DS4000 Storage Manager Version 9 library . . . . . . . . . . . . . . 153

DS4800 Storage Subsystem library . . . . . . . . . . . . . . . . . 154

DS4700 Storage Subsystem library . . . . . . . . . . . . . . . . . 155

DS4500 Fibre Channel Storage Server library . . . . . . . . . . . . . 156

DS4400 Fibre Channel Storage Server library . . . . . . . . . . . . . 157

DS4300 Fibre Channel Storage Server library . . . . . . . . . . . . . 158

DS4200 Express Storage Subsystem library . . . . . . . . . . . . . 159

DS4100 SATA Storage Server library . . . . . . . . . . . . . . . . 160

DS4000 Storage Expansion Enclosure documents . . . . . . . . . . . 161

Other DS4000 and DS4000-related documents . . . . . . . . . . . . 162

Appendix E. Accessibility . . . . . . . . . . . . . . . . . . . . 163

Appendix F. European Directive About Product Recycling and Disposal 165

Appendix G. Battery Return Program . . . . . . . . . . . . . . . 167

Appendix H. Cable Warning . . . . . . . . . . . . . . . . . . . 169

Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Important notes . . . . . . . . . . . . . . . . . . . . . . . . 172

Product recycling and disposal . . . . . . . . . . . . . . . . . . 172

Battery return program . . . . . . . . . . . . . . . . . . . . . 173

Contact Information . . . . . . . . . . . . . . . . . . . . . . . 174

Electronic emission notices . . . . . . . . . . . . . . . . . . . . 174

Federal Communications Commission (FCC) statement . . . . . . . . 174

Chinese class A compliance statement . . . . . . . . . . . . . . . 174

Industry Canada Class A emission compliance statement . . . . . . . . 175

Australia and New Zealand Class A statement . . . . . . . . . . . . 175

United Kingdom telecommunications safety requirement . . . . . . . . 175

European Union EMC Directive conformance statement . . . . . . . . 175

Taiwan Class A warning statement . . . . . . . . . . . . . . . . 175

Japanese Voluntary Control Council for Interference (VCCI) statement 176

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

vi IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Figures

1. DS4200 Express hot-swap drive bays . . . . . . . . . . . . . . . . . . . . . . .7

2. Back view; connectors, switch, ports, enclosure ID for the DS4200 Express . . . . . . . . .9

3. Power supply and fan unit components for the DS4200 Express . . . . . . . . . . . . .10

4. Power supply and fan unit and airflow . . . . . . . . . . . . . . . . . . . . . . .11

5. Battery unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

6. SFP module and fiber optic cable . . . . . . . . . . . . . . . . . . . . . . . . .13

7. DS4200 Express dimensions . . . . . . . . . . . . . . . . . . . . . . . . . .16

8. DS4200 Express airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

9. Example of cold aisle/hot aisle rack configuration . . . . . . . . . . . . . . . . . . .21

10. Example of DS4200 Express serial number, machine type, and model number location . . . . .24

11. Front rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . . .29

12. Rear rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . . .30

13. Installing the support rails . . . . . . . . . . . . . . . . . . . . . . . . . . .32

14. Removing and replacing a controller . . . . . . . . . . . . . . . . . . . . . . . .34

15. Removing a power supply and fan unit . . . . . . . . . . . . . . . . . . . . . . .35

16. Removing a EV-DDM CRU . . . . . . . . . . . . . . . . . . . . . . . . . . .36

17. Installing the DS4200 Express . . . . . . . . . . . . . . . . . . . . . . . . . .37

18. Securing the DS4200 Express to the rack cabinet . . . . . . . . . . . . . . . . . . .38

19. Removing and replacing a controller . . . . . . . . . . . . . . . . . . . . . . . .39

20. Replacing a power supply and fan unit . . . . . . . . . . . . . . . . . . . . . . .40

21. Replacing an EV-DDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

22. Storage subsystem seven-segment enclosure ID on the DS4200 Express . . . . . . . . . .43

23. SFP module and protective cap . . . . . . . . . . . . . . . . . . . . . . . . .46

24. Installing an SFP module into the host port . . . . . . . . . . . . . . . . . . . . .47

25. Unlocking the SFP module latch - plastic variety . . . . . . . . . . . . . . . . . . .47

26. Unlocking the SFP module latch - wire variety . . . . . . . . . . . . . . . . . . . .48

27. LC-LC fibre-channel cable . . . . . . . . . . . . . . . . . . . . . . . . . . .48

28. Removing fiber-optic cable protective caps . . . . . . . . . . . . . . . . . . . . .49

29. Inserting an LC-LC fibre-channel cable into an SFP module . . . . . . . . . . . . . . .50

30. LC-LC fibre-channel cable lever and latches . . . . . . . . . . . . . . . . . . . . .50

31. Removing the LC-LC fibre-channel cable . . . . . . . . . . . . . . . . . . . . . .51

32. LC-SC fibre-channel cable adapter . . . . . . . . . . . . . . . . . . . . . . . .51

33. Removing the LC-SC cable adapter protective caps . . . . . . . . . . . . . . . . . .52

34. Connecting an LC-LC cable into the LC-SC cable adapter . . . . . . . . . . . . . . .53

35. LC-LC fibre-channel cable lever and latches . . . . . . . . . . . . . . . . . . . . .53

36. Removing the LC-LC fibre-channel cable from an LC-SC fibre-channel cable adapter . . . . .54

37. Example of a redundant drive channel pair . . . . . . . . . . . . . . . . . . . . .56

38. DS4200 Express Storage Subsystem ports and controllers . . . . . . . . . . . . . . .58

39. One DS4200 Express and one storage expansion enclosure — Recommended cabling . . . . .59

40. One DS4200 Express and two storage expansion enclosure — Not recommended cabling 60

41. One DS4200 Express and two storage expansion enclosure — Recommended cabling . . . . .60

42. One DS4200 Express and three storage expansion enclosure — Recommended cabling . . . .61

43. One DS4200 Express and four storage expansion enclosure — Recommended cabling . . . . .61

44. One DS4200 Express and up to six storage expansion enclosure — Recommended cabling 62

45. One DS4200 Express and up to six storage expansion enclosure — Not recommended . . . .63

46. One DS4200 Express and one EXP420 storage expansion enclosure — Recommended cabling 64

47. One DS4200 Express and two EXP420 storage expansion enclosures behind a pair of DS4200

Express drive ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

48. One DS4200 Express and three EXP420 storage expansion enclosures behind a pair of DS4200

Express drive ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

49. One DS4200 Express and four EXP420 storage expansion enclosures behind a pair of DS4200

Express drive ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

50. One DS4200 Express and a maximum of six EXP420 storage expansion enclosures behind a pair

of DS4200 Express drive ports . . . . . . . . . . . . . . . . . . . . . . . . . .68

51. Ethernet and serial port locations on the DS4200 Express . . . . . . . . . . . . . . .70

52. Host-agent (in-band) managed storage subsystems . . . . . . . . . . . . . . . . . .71

53. Direct (out-of-band) managed storage subsystems . . . . . . . . . . . . . . . . . .72

54. Location of host cables on RAID controllers on the DS4200 Express . . . . . . . . . . . .73

55. Cabling diagram for two redundant host connections . . . . . . . . . . . . . . . . . .74

56. Examples of redundant host direct attached fibre channel configurations . . . . . . . . . .75

57. Example of a single SAN fabric configuration . . . . . . . . . . . . . . . . . . . .76

58. Example of a dual SAN fabric configuration . . . . . . . . . . . . . . . . . . . . .76

59. Example of two storage subsystems in a dual SAN environment . . . . . . . . . . . . .77

60. Example of a two-cluster configuration . . . . . . . . . . . . . . . . . . . . . . .77

61. Power supply switches and connectors for the DS4200 Express . . . . . . . . . . . . .82

62. Power supply and fan unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . .88

63. Front LEDs and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

64. Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

65. Rear controller LEDs, controls, and connectors . . . . . . . . . . . . . . . . . . . .91

66. Numeric display LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

67. Cache Active LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

68. Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

69. Unlocking the SFP module latch - plastic variety . . . . . . . . . . . . . . . . . . . 107

70. Unlocking the SFP module latch - wire variety . . . . . . . . . . . . . . . . . . . 107

71. Removing a controller from the DS4200 Express . . . . . . . . . . . . . . . . . . 108

72. Installing a controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

73. Hot-swap hard disk drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . .113

74. EV-DDM CRU handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

75. Link rate LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

76. Link rate switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

77. Replacing a power supply and fan unit . . . . . . . . . . . . . . . . . . . . . . 127

78. Removing and replacing a battery unit from the controller chassis . . . . . . . . . . . . 129

79. Replacing an SFP module . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

80. Replacing a midplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

81. DS4200 Express storage subsystem parts list . . . . . . . . . . . . . . . . . . . . 141

82. Front rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . . . 147

83. Rear rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . . . 148

viii IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Tables

1. Where to find DS4000 installation and configuration procedures . . . . . . . . . . . . . xviii

2. Description of Figure 2 on page 9 . . . . . . . . . . . . . . . . . . . . . . . . .9

3. Description of Figure 3 on page 10 . . . . . . . . . . . . . . . . . . . . . . . .10

4. Description of Figure 5 on page 12 . . . . . . . . . . . . . . . . . . . . . . . .12

5. Software and firmware levels for the DS4200 Express Storage Subsystem . . . . . . . . .14

6. DS4200 Express hardware and software compatibility . . . . . . . . . . . . . . . . .14

7. DS4200 Express weights . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

8. DS4200 Express component weights . . . . . . . . . . . . . . . . . . . . . . .17

9. DS4200 Express shipping carton dimensions . . . . . . . . . . . . . . . . . . . .17

10. Temperature and humidity requirements . . . . . . . . . . . . . . . . . . . . . .17

11. DS4200 Express altitude ranges . . . . . . . . . . . . . . . . . . . . . . . . .18

12. DS4200 Express power and heat dissipation . . . . . . . . . . . . . . . . . . . .18

13. DS4200 Express sound levels . . . . . . . . . . . . . . . . . . . . . . . . . .18

14. DS4200 Express AC power requirements . . . . . . . . . . . . . . . . . . . . . .19

15. Description of Figure 22 on page 43 . . . . . . . . . . . . . . . . . . . . . . . .43

16. DS4200 Express Storage Subsystem host ports and drive channels . . . . . . . . . . . .58

17. DS4200 Express Storage Subsystem location of host ports on controllers . . . . . . . . . .70

18. DS4200 Express Storage Subsystem location of host ports on controllers . . . . . . . . . .73

19. Description of Figure 61 on page 82 . . . . . . . . . . . . . . . . . . . . . . . .83

20. Board ID, Submodel ID, Product ID, and Product Revision for the DS4200 Express Storage

Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

21. Product ID for supported storage expansion enclosures compatible with the DS4200 Express

Storage Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

22. Product ID for EV-DDMs for the DS4200 Express Storage Subsystem . . . . . . . . . . .86

23. Power supply and fan unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . .89

24. Front LEDs and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

25. Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

26. Rear controller LEDs, controls, and connectors . . . . . . . . . . . . . . . . . . . .91

27. Host and drive channel LED definitions . . . . . . . . . . . . . . . . . . . . . .92

28. Numeric display diagnostic codes . . . . . . . . . . . . . . . . . . . . . . . . .94

29. Description of Figure 67 on page 101 . . . . . . . . . . . . . . . . . . . . . . . 102

30. Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

31. Drive LED activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112

32. Data transfer rates for drive modules . . . . . . . . . . . . . . . . . . . . . . . 121

33. Symptom-to-FRU index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

34. Parts listing (DS4200 Express Storage Subsystem) . . . . . . . . . . . . . . . . . . 141

35. Storage subsystem and controller information record . . . . . . . . . . . . . . . . . 143

36. Sample information record . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

37. Hard disk drive record . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

38. IBM power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

39. DS4000 Storage Manager Version 9.1 titles by user tasks . . . . . . . . . . . . . . . 153

40. DS4800 Storage Subsystem document titles by user tasks . . . . . . . . . . . . . . . 154

41. DS4700 Storage Subsystem document titles by user tasks . . . . . . . . . . . . . . . 155

42. DS4500 Fibre Channel Storage Server document titles by user tasks . . . . . . . . . . . 156

43. DS4400 Fibre Channel Storage Server document titles by user tasks . . . . . . . . . . . 157

44. DS4300 Fibre Channel Storage Server document titles by user tasks . . . . . . . . . . . 158

45. DS4200 Express Storage Subsystem document titles by user tasks . . . . . . . . . . . 159

46. DS4100 SATA Storage Server document titles by user tasks . . . . . . . . . . . . . . 160

47. DS4000 Storage Expansion Enclosure document titles by user tasks . . . . . . . . . . . 161

48. DS4000 and DS4000–related document titles by user tasks . . . . . . . . . . . . . . 162

49. DS4000 Storage Manager alternate keyboard operations . . . . . . . . . . . . . . . 163

x IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Safety

The caution and danger statements that this document contains can be referenced in the multilingual IBM System Storage

™

Safety Information document that is provided with your IBM

DS4200 Express Storage Subsystem. Each caution and danger statement is numbered for easy reference to the corresponding statements in the translated document.

v Danger: These statements indicate situations that can be potentially lethal or

extremely hazardous to you. A danger statement is placed just before the description of a potentially lethal or extremely hazardous procedure, step, or situation.

v Caution: These statements indicate situations that can be potentially hazardous

to you. A caution statement is placed just before the description of a potentially hazardous procedure step or situation.

v Attention: These notices indicate possible damage to programs, devices, or

data. An attention notice is placed just before the instruction or situation in which damage could occur.

Before installing this product, read the following danger and caution notices.

Statement 1:

DANGER

Electrical

current from power, telephone, and communication cables is

hazardous.

To avoid a shock hazard: v Do not connect or disconnect any cables or perform installation,

maintenance, or reconfiguration of this product during an electrical storm.

v Connect all power cords to a properly wired and grounded electrical

outlet.

v Connect to properly wired outlets any equipment that will be attached to

this product.

v When possible, use one hand only to connect or disconnect signal

cables.

v Never turn on any equipment when there is evidence of fire, water, or

structural damage.

v Disconnect the attached power cords, telecommunications systems,

networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.

v Connect and disconnect cables as described in the following table when

installing, moving, or opening covers on this product or attached devices.

To Connect: To Disconnect:

1. Turn everything OFF.

2. First, attach all cables to devices.

3. Attach signal cables to connectors.

4. Attach power cords to outlet.

1. Turn everything OFF.

2. First, remove power cords from outlet.

3. Remove signal cables from connectors.

4. Remove all cables from devices.

5. Turn device ON.

xii IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Statement 3:

CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following:

v Do not remove the covers. Removing the covers of the laser product could

result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

v Use of controls or adjustments or performance of procedures other than

those specified herein might result in hazardous radiation exposure.

DANGER

laser products contain an embedded Class 3A or Class 3B laser

Some diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

Class 1 Laser statement

Class 1 Laser Product Laser Klasse 1 Laser Klass 1 Luokan 1 Laserlaite Apparell Laser de Calsse 1À

IEC 825-11993 CENELEC EN 60 825

Statement 4:

≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb)

CAUTION: Use safe practices when lifting.

Safety xiii

Statement 5:

CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

2 1

xiv IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Statement 8:

CAUTION: Never remove the cover on a power supply or any part that has the following label attached.

Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician.

Cable Warning: WARNING: Handling the cord on this product or cords associated with accessories

sold with this product, will expose you to lead, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash

hands after handling.

Safety xv

xvi IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

About this document

This document provides instructions for installing and customizing the configuration of your IBM System Storage DS4200 Express Storage Subsystem. It also provides maintenance procedures and troubleshooting information.

Who should read this document

This document is intended for system operators and service technicians who have extensive knowledge of fibre channel and network technology.

How this document is organized

Chapter 1, “Introduction,” on page 1 describes the IBM System Storage DS4200 Express Storage Subsystem. This chapter includes an inventory checklist and an overview of the storage subsystem features, operating specifications, and components.

Chapter 2, “Installing the storage subsystem,” on page 23 contains information on how to install the DS4200 Express Storage Subsystem in a standard rack cabinet and setting the interface options.

Chapter 3, “Cabling the storage subsystem,” on page 43 contains fibre channel and power cabling information for the DS4200 Express Storage Subsystem.

Chapter 4, “Operating the storage subsystem,” on page 79 contains information on how to power on and off the DS4200 Express Storage Subsystem, recover from an overheated power supply and fan unit, troubleshoot, and interpret LEDs.

Chapter 5, “Replacing components,” on page 105 contains step-by-step instructions about how to install or remove customer replaceable units (CRUs), such as Enhanced Value Disk Drive Modules (EV-DDMs), power supply and fan units, RAID controllers, battery units, midplane, and SFP modules.

Chapter 6, “Hardware maintenance,” on page 135 describes problems and symptoms that are specific to the DS4200 Express Storage Subsystem. It also provides a parts list for the DS4200 Express Storage Subsystem.

Appendix A, “Records,” on page 143 provides a table that you can use to record and update important information about your DS4200 Express Storage Subsystem, including serial number and device records.

Appendix B, “Rack mounting template,” on page 147 provides the rack mounting templates for installation of the DS4200 Express Storage Subsystem. If you want to tear out the templates from the document for use during installation, use these copies of the templates.

Appendix C, “Power cords,” on page 149 lists power cord information for the DS4200 Express Storage Subsystem.

Appendix D, “Additional DS4000 documentation,” on page 153 lists additional DS4000 documents.

Appendix E, “Accessibility,” on page 163 details accessibility information.

Appendix F, “European Directive About Product Recycling and Disposal,” on page 165 details the European directive about product recycling.

DS4000 Storage Subsystem installation tasks - General overview

Table 1 provides a sequential list of many installation and configuration tasks that are common to most DS4000 configurations. When you install and configure your DS4000 storage subsystem, refer to this table to find the documentation that explains how to complete each task.

also: The DS4000 Storage Server and Storage Expansion Enclosure Quick

See

Start Guide provides an excellent overview of the installation process.

Table 1. Where to find DS4000 installation and configuration procedures

Installation task Where to find information or procedures

1 Plan the installation

v DS4000 Storage Manager Concepts Guide v DS4000 Storage Manager Installation and Support Guide for

AIX, HP-UX, Solaris and Linux on POWER

v DS4000 Storage Manager Installation and Support Guide for

Windows 2000/Server 2003, NetWare, ESX Server, and Linux

v DS4100 Storage Server Installation, User’s, and Maintenance

Guide

v DS4200 Express Storage Subsystem Installation, User’s, and

Maintenance Guide

v DS4300 Fibre Channel Storage Server Installation and User’s

Guide

v DS4400 Fibre Channel Storage Server Installation and

Support Guide

v DS4500 Fibre Channel Storage Server Installation and

Support Guide

v DS4700 Storage Subsystem Installation, User’s, and

Maintenance Guide

v DS4800 Storage Subsystem Installation, User’s, and

Maintenance Guide

2 Mount the DS4000

storage subsystem in the rack

v DS4800 Installation, User’s, and Maintenance Guide v DS4700 Installation, User’s, and Maintenance Guide v DS4400 and DS4500 Rack Mounting Instructions v DS4300 Rack Mounting Instructions v DS4200 Express Installation, User’s, and Maintenance Guide v DS4100 Installation, User’s and Maintenance Guide

3 Mount the DS4000

EXP storage expansion unit in the rack

v DS4000 EXP100 Storage Expansion Unit Installation, User’s

and Maintenance Guide

v DS4000 EXP420 Storage Expansion Enclosures Installation,

User’s, and Maintenance Guide

v DS4000 EXP700 and EXP710 Storage Expansion Enclosures

Installation, User’s, and Maintenance Guide

v DS4000 EXP810 Storage Expansion Enclosures Installation,

User’s, and Maintenance Guide

v FAStT EXP500 Installation and User’s Guide

xviii IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Table 1. Where to find DS4000 installation and configuration procedures (continued)

Installation task Where to find information or procedures

4 Route the storage

expansion unit Fibre Channel cables

v DS4100 Fibre Channel Cabling Instructions v DS4200 Express Installation, User’s, and Maintenance Guide v DS4300 Fibre Channel Cabling Instructions v DS4400 Fibre Channel Cabling Instructions v DS4500 Fibre Channel Cabling Instructions v DS4700 Installation, User’s, and Maintenance Guide v DS4800 Installation, User’s, and Maintenance Guide

5 Route the host

server Fibre Channel cables

6 Power up the

subsystem

v DS4100 Storage Server Installation, User’s, and Maintenance

Guide

v DS4200 Express Storage Subsystem Installation, User’s, and

Maintenance Guide

v DS4300 Fibre Channel Storage Server Installation and User’s

Guide

v DS4400 Fibre Channel Storage Server Installation and

Support Guide

v DS4500 Fibre Channel Storage Server Installation and

Support Guide

v DS4700 Storage Subsystem Installation, User’s, and

Maintenance Guide

v DS4800 Storage Subsystem Installation, User’s, and

Maintenance Guide

7 Configure DS4000

network settings

v DS4100 Storage Server Installation, User’s, and Maintenance

Guide

v DS4200 Express Storage Subsystem Installation, User’s, and

Maintenance Guide

v DS4300 Fibre Channel Storage Server Installation and User’s

Guide

v DS4400 Fibre Channel Storage Server Installation and

Support Guide

v DS4500 Fibre Channel Storage Server Installation and

Support Guide

v DS4700 Storage Subsystem Installation, User’s, and

Maintenance Guide

v DS4800 Storage Subsystem Installation, User’s, and

Maintenance Guide

About this document xix

Table 1. Where to find DS4000 installation and configuration procedures (continued)

Installation task Where to find information or procedures

8 Zone the fabric

switch (SAN-attached only)

v DS4000 Storage Manager Installation and Support Guide for

AIX, HP-UX, Solaris and Linux on POWER

v DS4000 Storage Manager Installation and Support Guide for

Windows 2000/Server 2003, NetWare, ESX Server, and Linux

v DS4000 Storage Manager Copy Services Guide (describes

switch zoning for the Remote Mirror Option)

v See also the documentation provided by the switch

manufacturer

9 Install DS4000

Storage Manager software on the management station

10 Install host software

(failover drivers) on host server

v DS4000 Storage Manager Installation and Support Guide for

AIX, HP-UX, Solaris and Linux on POWER

v DS4000 Storage Manager Installation and Support Guide for

Windows 2000/Server 2003, NetWare, ESX Server, and Linux

v DS4000 Storage Manager online help (for post-installation

tasks)

11 Start DS4000

Storage Manager

12 Set the DS4000

Storage Manager clock

13 Set the DS4000

Storage Manager host default type

14 Verify DS4000

subsystem health

v DS4100 Storage Server Installation, User’s, and Maintenance

Guide

v DS4200 Express Storage Subsystem Installation, User’s, and

Maintenance Guide

v DS4300 Fibre Channel Storage Server Installation and User’s

Guide

v DS4400 Fibre Channel Storage Server Installation and

Support Guide

v DS4500 Fibre Channel Storage Server Installation and

Support Guide

v DS4700 Storage Subsystem Installation, User’s, and

Maintenance Guide

v DS4800 Storage Subsystem Installation, User’s, and

Maintenance Guide

xx IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Table 1. Where to find DS4000 installation and configuration procedures (continued)

Installation task Where to find information or procedures

15 Enable DS4000

Storage Manager premium feature keys

Copy Services premium features

DS4000 Storage Manager Copy Services Guide

FC/SATA Intermix premium feature

DS4000 Fibre Channel and Serial ATA Intermix Premium Feature Installation Overview

Storage Partitioning (and general premium features information)

v DS4000 Storage Manager Concepts Guide v DS4000 Storage Manager Installation and Support

Guide for AIX, HP-UX, Solaris and Linux on POWER

v DS4000 Storage Manager Installation and Support

Guide for Windows 2000/Server 2003, NetWare, ESX Server, and Linux

16 Configure arrays and

logical drives

17 Configure host

partitions

18 Verify host access to

DS4000 storage

v DS4000 Storage Manager Installation and Support Guide for

AIX, HP-UX, Solaris and Linux on POWER

v DS4000 Storage Manager Installation and Support Guide for

Windows 2000/Server 2003, NetWare, ESX Server, and Linux

v DS4000 Storage Manager online help

Getting information, help, and service

If you need help, service, or technical assistance or just want more information about IBM products, you will find a wide variety of sources available from IBM to assist you. This section contains information about where to go for additional information about IBM and IBM products, what to do if you experience a problem with your IBM Eserver xSeries

service, if it is necessary.

Before you call

Before you call, make sure that you have taken these steps to try to solve the problem yourself:

v Check all cables to make sure that they are connected. v Check the power switches to make sure that the system is turned on. v Use the troubleshooting information in your system documentation and use the

diagnostic tools that come with your system.

v Check for technical information, hints, tips, and new device drivers at the

following Web site: www.ibm.com/servers/storage/support/disk/

v Use an IBM discussion forum on the IBM Web site to ask questions.

or IntelliStation

system, and whom to call for

can solve many problems without outside assistance by following the

You troubleshooting procedures that IBM provides in the online help or in the documents that are provided with your system and software. The information that comes with your system also describes the diagnostic tests that you can perform. Most xSeries and IntelliStation systems, operating systems, and programs come with information

About this document xxi

that contains troubleshooting procedures and explanations of error messages and error codes. If you suspect a software problem, see the information for the operating system or program.

Using the documentation

Information about the xSeries or IntelliStation system and preinstalled software, if any, is available in the documents that come with your system. This includes printed documents, online documents, readme files, and help files. See the troubleshooting information in your system documentation for instructions on how to use the diagnostic programs. The troubleshooting information or the diagnostic programs might tell you that you need additional or updated device drivers or other software.

Web sites

IBM maintains pages on the World Wide Web where you can get the latest technical information and download device drivers and updates.

v For DS4000 information, go to the following Web site:

www.ibm.com/servers/storage/support/disk/ The support page has many sources of information and ways for you to solve

problems, including: – Diagnosing problems using the IBM Online Assistant – Downloading the latest device drivers and updates for your products – Viewing frequently asked questions (FAQ) – Viewing hints and tips to help you solve problems – Participating in IBM discussion forums – Setting up e-mail notification of technical updates about your products

You can order publications through the IBM Publications Ordering System at the

following web site: www.elink.ibmlink.ibm.com/public/applications/publications/cgibin/pbi.cgi/

v For the latest information about IBM xSeries products, services, and support, go

to the following Web site: www.ibm.com/eserver/xseries/

v For the latest information about IBM pSeries

to the following Web site: www.ibm.com/eserver/pseries/

v For the latest information about the IBM IntelliStation information, go to the

following Web site: www-132.ibm.com/content/home/store_IBMPublicUSA/

en_US/IntelliStation_workstations.html

v For the latest information about operating system and HBA support, clustering

support, SAN fabric support, and Storage Manager feature support, see the TotalStorage

www.ibm.com/servers/storage/disk/ds4000/interop-matrix.html

products, services, and support, go

DS4000 Interoperability Matrix at the following Web site:

Software service and support

Through IBM Support Line, for a fee you can get telephone assistance with usage, configuration, and software problems with xSeries servers, IntelliStation workstations, and appliances. For information about which products are supported by Support Line in your country or region, go to the following Web site:

www.ibm.com/services/sl/products/

xxii IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

For more information about the IBM Support Line and other IBM services, go to the following Web sites:

v www.ibm.com/services/ v www.ibm.com/planetwide/

Hardware service and support

You can receive hardware service through IBM Integrated Technology Services or through your IBM reseller, if your reseller is authorized by IBM to provide warranty service. Go to the following Web site for support telephone numbers:

www.ibm.com/planetwide/ In the U.S. and Canada, hardware service and support is available 24 hours a day,

7 days a week. In the U.K., these services are available Monday through Friday, from 9 a.m. to 6 p.m.

Fire suppression systems

A fire suppression system is the responsibility of the customer. The customer’s own insurance underwriter, local fire marshal, or a local building inspector, or both, should be consulted in selecting a fire suppression system that provides the correct level of coverage and protection. IBM designs and manufactures equipment to internal and external standards that require certain environments for reliable operation. Because IBM does not test any equipment for compatibility with fire suppression systems, IBM does not make compatibility claims of any kind nor does IBM provide recommendations on fire suppression systems.

How to send your comments

Your feedback is important in helping us to provide the most accurate and high-quality information. If you have comments or suggestions for improving this publication, you can send us comments electronically by using these addresses:

v Internet: starpubs@us.ibm.com

™

v IBMLink v IBMLink from Canada: STARPUBS at TORIBM v IBM Mail Exchange: USIB3WD at IBMMAIL

You can also mail your comments by using the Reader Comment Form in the back of this manual or direct your mail to:

International Business Machines Corporation Information Development Dept. GZW 9000 South Rita Road Tucson, AZ 85744–0001 U.S.A.

from U.S.A.: STARPUBS at SJEVM5

About this document xxiii

xxiv IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Chapter 1. Introduction

This chapter describes the operating specifications, features, and components for the IBM System Storage DS4200 Express Storage Subsystem (hereafter referred to as DS4200 Express or storage subsystem).

This chapter also includes an inventory checklist and important information on best practices guidelines and product updates for your DS4200 Express.

Overview

IBM DS4000 solutions support the large and growing data storage requirements of business-critical applications. These scalable IBM DS4000 solutions offer you data access and protection to meet your existing enterprise storage requirements and prepare for the future.

The IBM System Storage DS4200 Express Storage Subsystem (Machine Type 1814, Models 7VA and 7VH) is designed to provide solutions to meet the needs of midrange/departmental storage requirements, delivering high performance, advanced function, high availability, modular and scalable storage capacity, with SAN-attached 4-Gbps fibre channel connectivity, and support for RAID levels 0, 1, 3, and 5 up to 8.0 TB when using 500 GB SATA Enhanced Value Disk Drive Modules (EV-DDMs).

A 3-U rack-mountable enclosure houses the DS4200 Express redundant, dual-active RAID controllers with four fibre-channel ports per controller for attachment of host servers and DS4000 storage expansion enclosures and up to 16 SATA EV-DDMs. The DS4200 Express does not support fibre channel drive options in this release.

The DS4200 Express supports attachment of up to six storage expansion enclosures, resulting in the capability to connect to up to 112 disk drives and enabling storage configurations up to 56 TB using 500 GB SATA EV-DDMs. The DS4200 Express supports configurations of Serial Advanced Technology Attachment (SATA) disks only. Fibre channel drive options and intermixing SATA EV-DDMs and fibre channel Enhanced Disk Drive Modules (E-DDMs) are not supported in this release. Advanced DS4000 storage management, copy service options, and optional advanced disaster recovery functions are available for the DS4200 Express, including FlashCopy®, VolumeCopy, and Enhanced Remote Mirroring.

The DS4200 Express supports up to two hosts in a redundant direct attached fibre channel configuration. When using fibre channel switches, you can redundantly connect up to 128 hosts to the DS4200 Express.

The DS4000 Storage Manager client is also available for the DS4200 Express. This storage management software is designed to help centralize storage management, help simplify partitioning of the DS4000 series storage into as many as 64 virtual servers, and strategically allocate storage capacity to maximize storage subsystem utilization.

Models

The DS4200 Express RAID controller cache size, partitions, and other features vary depending the DS4200 Express model:

v Model 7VH comes with 1 GB cache per controller, two host ports per controller, a

dual-ported drive channel, and two storage partitions premium feature, which you can upgrade to 4, 8, 16 or 64 partitions when you purchase storage partitioning upgrades (2 to 4, 2 to 8, 2 to 16, 2 to 64, 4 to 8, 4 to 16, 4 to 64, 8 to 16, 8 to 64, and 16 to 64). Model 7VH can also be upgraded to support Copy Services premium features like FlashCopy, VolumeCopy and Enhanced Remote Mirroring when you purchase those additional Copy Services premium feature options. Model 7VH also includes the Windows

Host kit as standard. Model 7VH does not come with DS4000 drive expansion enclosure attachment entitlements. You can purchase either 1 to 3 drive expansion or both 1 to 3 and 4 to 6 drive expansion enclosures attachment entitlements to connect up to three or six EXP420 storage expansion enclosures to the DS4200 Express controllers.

v Model 7VA is the same as Model 7VH except that you can select either 2, 4, 8,

16 or 64 partitions and select one host kit from the list of available DS4000 host kit attachments when placing the order instead of having two storage partition premium feature and a Windows Host kit shipped as standard.

DS4200 Express models 7VH and 7VA have a Submodel ID of 51. The

Note:

DS4700 Storage Subsystem Workstation model has a Submodel ID of 19. See “Finding controller, storage expansion enclosure, and drive information” on page 86 for details on how to locate a storage subsystem's Submodel ID.

Contact your IBM sales representatives or reseller for more information on the various DS4200 Express models and options.

Operating system support

Microsoft

Windows 2000 Server and Advance Server, Microsoft Windows 2003 Server and Enterprise Edition, Sun®Solaris, IBM AIX®, RedHat Enterprise Linux Server, and SuSE Linux Enterprise Server, IBM Linux on Power (LoP), HP HP-UX, Novell Netware and VMware ESX are the supported operating systems for host servers that have mapped LUNs created in the DS4200 Express with storage expansion enclosures. See the latest DS4000 Storage Manager host software readme file and the IBM DS4000 series products interoperability matrix at the following Web site for additional host operating system support:

www.storage.ibm.com/disk/fastt/supserver.htm

Fibre channel defined

Fibre channel technology is outlined in the SCSI-3 Fibre Channel Protocol (SCSI-FCP) standard. Fibre channel is a high-speed data transport technology that is used for mass storage and networking.

Using a fibre-channel arbitrated loop (FC-AL), more than 100 fibre-channel devices can be supported, compared to 15 small computer system interface (SCSI) devices. The fibre channel connection speed from the DS4200 Express to storage expansion enclosures is either a 2 Gbps or 4 Gbps fibre-channel interface speed that supports data transfer rates up to 400 MBps half-duplex and 800 MBps full-duplex on optical interfaces.

SATA defined

The Serial Advanced Technology Attachment (SATA) interface offers increased data rate performance over Parallel Advanced Technology Attachment (ATA), while maintaining the benefits of ATA. SATA is designed to overcome the performance barriers that have been forecasted for current parallel technologies while

2 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

maintaining the cost-efficiency of Parallel ATA. SATA specifications allow for thinner, more flexible cables, and lower pin counts. It also enables easier, more flexible cable routing management and the use of smaller connectors than is possible with the existing Parallel ATA technology.

The Serial ATA Working Group introduced the first SATA specification, Serial ATA

1.0, in 2001 (http://www.serialata.org).

Inventory checklist

After you unpack the DS4200 Express, verify that you have the following items.

Note: Depending on your DS4200 Express order, your shipping box might contain

v Hardware

– Blank trays (16) (Your storage subsystem might come with up to 16 hard disk

– RAID controllers (2) – Power supply and fan units (2) – Battery units (2) – Power cables (2 jumper line cords) – Diagnostic wrap plug/coupler (1) – Serial cable adapter (1) – Rack-mounting hardware kit (1), including:

– 4 Gbps SFPs (4) (These SFPs are installed in the DS4200 Express host and

additional materials not listed in the following checklist. Review the inventory checklist included in the DS4200 Express shipping box for any additional parts, and use that checklist in combination with the following information.

drives.)

- Rails (2) (right and left assembly)

- M5 black hex-head slotted screws (12)

- Washers (8)

drive SFP ports.)

Attention: The DS4200 Express does not ship with region-specific power

cords. You must obtain the IBM-approved power cords for your region. See Appendix C, “Power cords,” on page 149 for the IBM-approved power cords for your region.

v Software and documentation

– Host software attachment kit

Depending on the DS4200 Express model that you order, your DS4200 Express will ship with either the Microsoft Windows host software attachment kit or with your choice of host software kits (Windows, AIX, Linux, Netware, SUN Solaris, HP-UX, Linux on POWER™, or VMware). The host software kit grants you permission to attach host servers using the appropriate operating system to the DS4200 Express. The kit includes a DS4000 Storage Manager

Version 9.16 Release 2 Support CD that has the appropriate IBM DS4000

Storage Manager host software. The CD also includes firmware, online help, and publications in Adobe Acrobat Portable Document Format (PDF). (For a list of available IBM DS4000 publications, see Appendix D, “Additional DS4000 documentation,” on page 153.)

If you order more than one host software kit, the additional kits may also be shipped in the DS4200 Express shipping box.

Chapter 1. Introduction 3

Note: Depending on your DS4200 Express model, you may need to purchase

the appropriate host software kit for your host server operating system. Contact your IBM representative or reseller for more information.

– Activation kit:

- Two storage partitions activation kit (Model 7VH)

- Storage partition kit with the number of partitions you ordered (Model 7VA)

IBM System Storage DS4200 Express Storage Subsystem Installation, User’s,

–

and Maintenance Guide

– IBM System Storage DS4200 Express Storage Subsystem Fibre Channel

Cabling Guide

– IBM Safety Information – IBM License Agreement – Statement of Limited Warranty – Box ID labels (used to label the enclosure IDs on the front of the DS4200

Express)

If representative.

A rack mounting template and instructions for installing the support rails and the storage subsystem are provided in this book in “Installing the support rails” on page

28. To connect your DS4200 Express to other devices, use the following options:

v IBM SFP module v IBM LC-LC fibre-channel cable v IBM LC-SC fibre-channel cable (for host-side connections only)

Note:

Product updates

If you ordered additional premium features or entitlements, the premium

Note:

features activation or entitlement kits may also be shipped inside the box.

an item is missing or damaged, contact your IBM reseller or your IBM marketing

You must order these options separately.

Important

In order to keep your system up to date with the latest firmware and other product updates, use the information below to register and use the My

support Web site.

Download the latest versions of the DS4000 Storage Manager host software,

DS4000 storage server controller firmware, DS4000 drive expansion enclosure ESM firmware, and drive firmware at the time of the initial installation and when product updates become available.

To be notified of important product updates, you must first register at the IBM Support and Download Web site:

www-1.ibm.com/servers/storage/support/disk/index.html

4 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

In the Additional Support section of the Web page, click My support. On the next page, if you have not already done so, register to use the site by clicking Register now.

Perform the following steps to receive product updates:

1. After you have registered, type your user ID and password to log into the site. The My support page opens.

2. Click Add products. A pull-down menu displays.

3. In the pull-down menu, select Storage. Another pull-down menu displays.

4. In the new pull-down menu, and in the subsequent pull-down menus that display, select the following topics:

v Computer Storage v Disk Storage Systems v TotalStorage DS4000 Midrange Disk Systems & FAStT Stor Srvrs

Note: During this process a check list displays. Do not check any of the items

in the check list until you complete the selections in the pull-down menus.

5. When you finish selecting the menu topics, place a check in the box for the machine type of your DS4000 series product, as well as any other attached DS4000 series product(s) for which you would like to receive information, then click Add products. The My Support page opens again.

6. On the My Support page, click the Edit profile tab, then click Subscribe to email. A pull-down menu displays.

7. In the pull-down menu, select Storage. A check list displays.

8. Place a check in each of the following boxes: a. Please send these documents by weekly email b. Downloads and drivers c. Flashes d. Any other topics that you may be interested in

click Update.

Then,

9. Click Sign out to log out of My Support.

Best practices guidelines

To ensure optimal operation of your system, always follow these best practices guidelines:

v Ensure that your system is in an optimal state before you shut it down. Never

turn the power off if any Needs Attention LED is lit; be sure to resolve any error conditions before you shut down the system.

v Back up the data on your storage drives periodically. v To maintain power redundancy, plug the DS4200 Express right and left power

supply and fan units into two independent external power circuits through AC power distribution units inside a rack cabinet or directly into external receptacles. Similarly, the right and left power supplies of the DS4000 storage expansion enclosures attached to the DS4200 Express should be plugged into the same two independent external power circuits as the DS4200 Express. This ensures that the DS4200 Express and all its attached storage expansion enclosures will have power in the event that only one power circuit is available. In addition, having all the right or all the left power cables plug into the same power circuit

Chapter 1. Introduction 5

enables the DS4000 devices in the configuration to power on simultaneously during an unattended restoration of power.

Do not overload the circuits that power your storage subsystem and

Note:

storage expansion enclosures. Use additional pairs of AC power distribution units (PDUs) if necessary. Refer to Table 12 on page 18 for information on storage subsystem power requirements. Contact your IBM service representative for additional information if needed.

v Before any planned system shutdown or after any system additions, removals, or

modifications (including firmware updates, logical drive creations, storage partitioning definitions, hardware changes, and so on), save the storage subsystem profile as explained in the DS4000 Storage Manager guide for your operating system. Save the profile in a location other than in the logical drives created for the DS4200 Express.

v During any maintenance or attended power-up procedure, carefully follow the

power-up sequence listed in “Powering on the storage subsystem” on page 81. Check that each component of the subsystem is powered-on in the proper order during this entire power-up procedure to ensure the controller will be able to optimally access all of your storage subsystems.

v The storage subsystem supports simultaneous power-up to the system

components; however, you should always follow the power-up sequence listed in “Powering on the storage subsystem” on page 81 during any attended power-up procedure.

v A storage system in an optimal state should recover automatically from an

unexpected shutdown and unattended simultaneous restoration of power to system components. After power is restored, call IBM support if any of the following conditions occur:

– The storage subsystem logical drives and subsystems are not displayed in the

DS4000 Storage Manager graphical user interface (GUI). – The storage subsystem logical drives and subsystems do not come online. – The storage subsystem logical drives and subsystems seem to be degraded.

Storage subsystem components

The storage subsystem has the following removable components. These components, called customer replaceable units (CRUs), are accessible from the front or back of the storage subsystem.

v Up to 16 500 GB SATA Enhanced Value Disk Drive Modules (EV-DDMs) v Two RAID controllers v Two power supply and fan units v Two controller cache battery back up units

Enhanced Value Disk Drive Modules (EV-DDMs)

This section shows the location of hot-swap Enhanced Value Disk Drive Modules (EV-DDMs). The hot-swap features enable you to remove and replace SATA EV-DDMs, power supply and fan units, and controllers without turning off the storage subsystem. You can maintain the availability of your system while a hot-swap device is removed, installed, or replaced.

The hot-swap drive bays that are accessible from the front of your storage subsystem are shown in Figure 1 on page 7.

6 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Figure 1. DS4200 Express hot-swap drive bays

The DS4200 Express supports up to 16 SATA EV-DDMs, which come preinstalled in drive trays. Each drive, ATA translator card (also referred to as interposer card), and carrier assembly are called EV-DDM CRUs. The ATA translator card converts the fibre channel protocol interface of the DS4200 Express drive channel/loop into the SATA protocol interface. It also provides dual paths to the SATA drive for drive CRU path redundancy.

Install EV-DDM CRUs in the 16 drive bays on the front of the storage subsystem from the leftmost slot (slot 1) to the rightmost slot (slot 16). When an EV-DDM is installed, the EV-DDM and tray slot designation is set automatically. The hardware addresses are based on the enclosure ID switch setting on the controller and on the EV-DDM's physical location in the storage subsystem.

The DS4200 Express Storage Subsystem drive channel operates at either 2 or 4 Gbps fibre channel interface speed. The DS4200 Express Storage Subsystem SATA EV-DDM CRUs have an ATA translator card that converts EV-DDM 3 Gbps SATA drive interface protocol to either 2 Gbps or 4 Gbps fibre channel interface protocol. It is recommended that the DS4200 Express enclosure speed is set at 4 Gbps when these SATA EV-DDM CRUs are installed and connected to storage expansion enclosures running at 4 Gbps speed. The Link Rate setting speed must be set accordingly. See “Verifying the Link Rate setting ” on page 120 for more information.

There are no serviceable parts in a EV-DDM CRU. If it fails, it must be replaced in its entirety (EV-DDM, interposer card, bezel, and tray). The DS4200 Express drive tray is not interchangeable with the drive tray of other DS4000 storage subsystems such as DS4100 or DS4300 storage subsystems. The DS4200 Express drive option CRUs are not interchangeable with those of the DS4800, DS4700, and EXP810. When replacing an EV-DDM CRU, be sure to order and install the correct EV-DDM CRU. Using non-supported EV-DDM options or FRUs will result in the EV-DDM being locked out by the DS4200 Express controller firmware and might also damage the drive connector in the enclosure midplane.

To determine whether you have installed a correct EV-DDM CRU, check its

Note:

Product ID. In this release, the EV-DDM's Product ID should be ST350064INS 42D0392 39M0181 IBMV. See “Finding controller, storage expansion enclosure, and drive information” on page 86 for details on how to locate an EV-DDM's Product ID.

Chapter 1. Introduction 7

Controllers

Attention:

1. After you remove a EV-DDM CRU, wait 70 seconds before replacing or reseating it to allow the drive to properly spin down. Failure to do so may cause undesired events.

2. Never hot-swap a EV-DDM CRU when its associated green Activity LED is flashing. Hot-swap a drive CRU only when its associated amber Fault LED lights is not flashing or when the drive is inactive and its associated green Activity LED lights is not flashing.

If the hard disk drive you want to remove is not in a failed or bypass state,

Note:

always use the Storage Manager client program either to place the drive in a failed state or to place the array that is associated with the drive (or drives) in an offline state before you remove the drive from the enclosure.

The DS4200 Express has two hot-swappable and redundant RAID controllers. The controllers are located at the back of the storage subsystem. The left controller is labeled controller A, and the right controller is labeled controller B. One controller will continue to operate if the other controller fails.

The controllers contain the storage subsystem RAID control logic, interface ports, and LEDs. The controller has two fibre channel host ports that you could use to connect the storage subsystem to the host server. In addition, each controller has two fibre channel drive ports for connecting to the DS4000 storage expansion enclosures and two Ethernet ports for DS4200 Express subsystem management purposes. See Figure 2 on page 9.

Currently, the only supported storage expansion enclosure that attaches to the DS4200 Express Storage Subsystem is the EXP420. Contact your IBM reseller or representatives for other supported storage expansion enclosures in the future. You can also check the interoperability matrix at the following Web site:

www.ibm.com/servers/storage/disk/ds4000/interop-matrix.html

Note: DS4200 Express models 7VH and 7VA have a Submodel ID of 51. The

Although both controllers (A and B) are identical, they are seated in the DS4200 Express chassis in opposite orientations. See Figure 2 on page 9. If the controller cannot fully be inserted in the controller bay, flip it 180 degrees and reinsert it. Do not force fit because it may cause damage to the controller unit midplane connector.

Connectors, switch, and enclosure ID

The controllers support fiber optic interfaces for both the host channel and drive channel ports. The controllers also contain two Ethernet ports for storage subsystem management purposes and a serial port that IBM Support uses to perform problem recovery and troubleshooting procedures.

The default IP addresses for the Ethernet ports on controller A are 192.168.128.101 and 192.168.129.101. The default IP addresses for the Ethernet ports on controller B are 192.168.128.102 and 192.168.129.102. The subnet mask for all cases are

255.255.255.0.

8 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

The enclosure ID, comprised of two seven-segment numbers, is located on the back of each controller next to the controller indicator lights. It provides a unique identifier for each module in the storage array. The DS4200 Express Storage Subsystem is shipped from the factory with the enclosure ID typically set at 85. You can only change the enclosure ID setting through the DS4000 storage management software. There are no switches on the DS4200 Express chassis to manually set the enclosure ID. Both controller enclosure ID numbers will be identical under normal operating conditions.

Figure 2 shows the controllers ports for the DS4200 Express.

345

ds470004

Figure 2. Back view; connectors, switch, ports, enclosure ID for the DS4200 Express Table 2. Description of Figure 2

Number Description

1 Controller A 2 Controller B 3 Host channels 4 Ethernet ports 5 Serial port 6 Dual-ported drive channel 7 Enclosure ID

Power supply and fan units

The storage subsystem has two removable power supply and fan units. Each power supply and fan unit contains one power supply and two fans. The four fans pull air through the drive from front to back across the drives.

The fans provide redundant cooling, which means that if one of the fans in either fan housing fails, the remaining fans continue to provide sufficient cooling to operate the storage subsystem. The power supplies provide power to the internal components by converting incoming AC voltage to DC voltage. If one power supply is turned off or malfunctions, the other power supply maintains electrical power to the storage subsystem and the two fan modules in the turned off or malfunctioned power supply-fan unit. (All four fan modules function at all times even if one power supply and fan unit is switched off unless the fan module malfunctions.)

5 6

Chapter 1. Introduction 9

To preserve the optimal airflow, do not remove a failed power supply and fan unit CRU from the DS4200 Express chassis until you are ready to replace it with a new CRU.

Note: Unless problems prevent fan components from operating, the fan

components inside a powered off or failed power supply and fan unit draw power from the surviving (currently operating) power supply and fan unit.

Figure 3 shows power supply and fan unit components for the DS4200 Express.

Note: Although both power supply and fan units (left and right) are identical, they

are seated in the DS4200 Express chassis in opposite orientations. If the power supply and fan unit cannot fully be inserted in the power supply and fan unit bay, flip it 180 degree and reinsert it.

ds470040

Figure 3. Power supply and fan unit components for the DS4200 Express Table 3. Description of Figure 3

Number Description

1 Power supply and fan unit A 2 Power supply and fan unit B 3 Power connector 4 Power switch

Figure 4 on page 11 shows a power supply and fan unit and the airflow through the storage subsystem.

10 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Latch

Lever

Battery units

Figure 4. Power supply and fan unit and airflow

Each controller also contains a rechargeable battery unit that maintains data in the cache in the event of a power failure.

Figure 5 on page 12 shows how the battery unit slides into the battery backup slot in controller A CRU.

Chapter 1. Introduction 11

ds470012

Figure 5. Battery unit Table 4. Description of Figure 5

Number Description

1 Controller A cache backup battery unit 2 Controller B cache backup battery unit 3 Latch 4 Pull handle

The battery unit provides backup power to each controller's cache memory. Each battery unit contains a sealed, rechargeable lithium ion battery. The battery unit can maintain data in the cache for three days.

The battery chargers in the power supply and fan units perform a battery test when the storage subsystem is started and on a regularly scheduled interval thereafter. Data caching starts after the battery completes its battery tests.

The battery unit is hot-swappable. You can remove the battery unit for servicing and then reinsert it while the DS4200 Express continues to perform I/O operations. However, write I/O caching is disabled when the battery is in a failed state or removed from the DS4200 Express controller battery slot. Replace the failed battery as soon as possible to minimize the time that the write IO caching is disabled.

Information about the condition of the battery unit is conveyed by indicator LEDs on the front of battery unit. (“Battery unit LEDs” on page 90 identifies the indicator LEDs on the battery unit and explains the conditions that each LED indicates.)

12 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

SFP modules

The DS4200 Express Storage Subsystem supports a fiber optic interface for host and storage expansion enclosure connections. You must install a Small Form-factor Pluggable (SFP) module in each interface connector on the controller where a fiber optic cable is to be installed. The DS4200 Express Storage Subsystem host ports support 1, 2 and 4 Gbps fibre channel speeds. The DS4200 Express Storage Subsystem drive ports support only 2 and 4 Gbps fibre channel speeds.

Note: When attaching only EXP420 storage expansion enclosures to the DS4200

Express, set the DS4200 Express enclosure speed to 4 Gbps.

Attention: The speed of the SFP module determines the maximum operating

speed of the fibre channel port in which the SFP is installed. For example, a 2-Gbps SFP that is plugged into a 4-Gbps-capable port limits the speed of that port to a maximum of 2 Gbps. Carefully check the SFP’s IBM part number, option number, and FRU part number to identify its speed. There are no physical features that distinguish a 4 Gbps from a 2 Gbps SFP.

Figure 6 shows an example of SFP module with fiber optic cable.

Note: The SFP module and the fibre optic cable shown are for illustrative purposes

only. The actual SFP module and the fibre optic cable shape may look different from the figure shown.

SFP Module

Fiber-optic cable

Figure 6. SFP module and fiber optic cable

Software and hardware compatibility and upgrades

The latest DS4000 controller firmware and NVSRAM, the storage expansion enclosure drive enclosure ESM firmware, and the fibre channel drive CRUs firmware must be installed to ensure optimal functionality, manageability, and reliability.

Software and firmware support code upgrades

To enable support for the DS4200 Express, you must ensure that your system's software and firmware are at the levels shown in Table 5 on page 14:

Chapter 1. Introduction 13

Table 5. Software and firmware levels for the DS4200 Express Storage Subsystem

Software/firmware Level

DS4000 Storage Manager

9.16.xx.62 or higher

software DS4200 Express controller

firmware and NVSRAM ESM firmware for attached

06.16.86.xx or higher. This controller firmware does not support EXP100 attachment.

9865 or higher

storage expansion enclosures Drive firmware You can find the latest drive firmware at the IBM

DS4000 TotalStorage Support Web site: www.ibm.com/servers/storage/support/disk/

You can also find the latest DS4000 Storage Manager software, DS4200 Express controller firmware, and NVSRAM firmware at the IBM DS4000 System Storage Support Web site:

www.ibm.com/servers/storage/support/disk/ See the IBM System Storage DS4000 Storage Manager 9.16 Installation and

Support Guide for your operating system for instructions that describe how to install

the DS4000 Storage Manager 9.16 host software. The DS4200 Express is shipped with controller firmware version 06.16.86.xx or

higher, which supports EXP420 storage expansion enclosures only. If you need further assistance, please contact IBM technical support, your IBM

reseller, or IBM representative.

DS4200 Express hardware and software compatibility

Table 6 lists the DS4200 Express hardware and software compatibility. In the initial release of the DS4200 Express, you can only connect EXP420s to the DS4200 Express Storage Subsystem. Please contact IBM resellers or representatives for other DS4000 storage expansion enclosure support in the future.

For the latest information about supported servers and operating systems,

Note:

refer to the interoperability matrix at this Web site: www.ibm.com/servers/storage/disk/ds4000/interop-matrix.html

Table 6. DS4200 Express hardware and software compatibility

Storage server Storage management software Firmware

System Storage DS4200 Express Storage Subsystem

IBM DS4000 Storage Manager Version

9.16.xx.62 or higher

Controller firmware: version 06.16.86.xx or higher

Determining firmware levels

There are two different methods to determine the DS4000 storage subsystem and firmware versions. Each method uses the DS4000 Storage Manager client that manages the DS4200 Express Storage Subsystem.

Method One:

14 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Go to the Subsystem Management window and select View → Storage Subsystem Profile. When the Storage Subsystem Profile window opens, select the All tab and

scroll through the Profile For Storage Subsystem list to locate the following information.

The Profile For Storage Subsystem list contains all the profile information for

Note:

the entire subsystem. Therefore, it may be necessary to scroll through a large amount of information to locate the firmware version numbers.

DS4000

Storage Server

v NVSRAM version v Appware version v Bootware version

Drives

v Drive firmware version v ATA translator card firmware version

The ATA translator card firmware and drive firmware are typically

Note:

packaged together as a single drive firmware upgrade file.

ESM

v ESM card firmware version

Method

Two:

Complete the appropriate procedure to obtain the specified firmware version.

To obtain the controller firmware version:

Right-click the Controller icon in the Physical View pane of the Subsystem Management window and select Properties. The Controller Enclosure properties window opens and displays the properties for that controller.

You must perform this step for each individual controller.

To obtain the drive firmware version:

Right-click the Drive icon in the Physical View pane of the Subsystem Management window and select Properties. The Drive Properties window opens and displays the properties for that drive.

You must perform this step for each individual drive.

To obtain the ESM firmware version:

1. In the Physical View pane of the Subsystem Management window, click the Drive Enclosure Component icon (which is the icon furthest to the right.) The Drive Enclosure Component Information window opens.

2. Click the ESM icon in the left pane. The ESM information displays in the right pane of the Drive Enclosure Component Information window.

3. Locate the firmware version of each ESM in the drive enclosure.

obtain the drive enclosure component firmware version:

1. Click the Drive Enclosure Component icon (which is the right most icon) in the Drive Enclosure frame in the Physical View pane of the Subsystem Management window. The Drive Enclosure Component Information window opens.

2. Click the ESM icon in the left pane. The ESM information displays in the right pane of the Drive Enclosure Component Information window.

Chapter 1. Introduction 15

Specifications

This section provides site specifications for the DS4200 Express Storage Subsystem. Before installing, you must either verify that your planned installation site meets these requirements, or prepare the site so that it does meet these requirements. Preparations might involve meeting area requirements, environmental requirements, and electrical requirements for DS4200 Express Storage Subsystem installation, service, and operation.

Area requirements

The floor space at the installation site must provide enough strength to support the weight of the storage subsystem and associated equipment; sufficient space to install, operate, and service the storage subsystem; and sufficient ventilation to provide a free flow of air to the unit.

Dimensions

Figure 7 shows the dimensions of the DS4200 Express, which conforms to the 19-inch rack standard.

3. Locate the firmware version of each ESM in the drive enclosure.

must perform this step for each drive expansion enclosure.

You

77027-03

Figure 7. DS4200 Express dimensions

Weight

The total weight of the storage subsystem depends on the number of components installed. Table 7 lists the maximum, empty, and shipping weights for the storage subsystem in different configurations. Table 8 on page 17 lists the weight of each component.

16 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Table 7. DS4200 Express weights

Weight

Unit

Maximum

Empty

DS4200 Express 40 kg (88 lb) 16.4 kg (36.1 lb) 52.2 kg (115.0 lb)

Chassis with all CRUs and 16 drives.

Chassis without CRUs and drives but with front cage frame and midplane.

Shipping

Table 8. DS4200 Express component weights

Unit Weight

Drive 0.75 kg (1.65 lb) Power supply and fan unit 3.60 kg (7.95 lb) Controller (including cache battery backup

2.8 kg (6.1 lb)

unit) Battery unit 0.9 kg (2 lb)

Shipping dimensions

Table 9 lists shipping carton dimensions. The height shown includes the height of the pallet.

Table 9. DS4200 Express shipping carton dimensions

Height Width Depth

45.7 cm (18.0 in.) 62.6 cm (24.5 in.) 80.7 cm (31.75 in.)

Environmental requirements and specifications

This section describes the environmental conditions that are prerequisite to installing the unit, and heat and sound conditions that are generated by normal operation of the storage subsystem.

Temperature and humidity

Table 10 lists the acceptable temperature and humidity ranges in which the storage subsystem is designed to operate.

Important: The recommended operating environment air temperature is 22° C (72°

F) or lower.

Table 10. Temperature and humidity requirements

Condition Parameter Requirement

Temperature Operating range 10° - 35° C (50° - 95° F)

Maximum rate of change 10° C (18° F) per hour Storage range -10° - 65° C (14° - 149° F) Maximum rate of change 15° C (27° F) per hour Transit range -40° C to 65° C (-40° F to

Maximum rate of change 20° C (36° F) per hour

Relative humidity (no condensation)

Operating range 8% to 80% Storage range 8% to 90% Transit range 5% to 95% Maximum dew point 26° C (79° F) Maximum gradient 10% per hour

149° F)

Altitude

Table 11 on page 18 lists the acceptable altitudes for operating, storing, and shipping the DS4200 Express.

Chapter 1. Introduction 17

Table 11. DS4200 Express altitude ranges

Environment Altitude

Operating 30.5 m (100 ft.) below sea level to 3000 m

(9842 ft.) above sea level

Storage 30.5 m (100 ft.) below sea level to 3000 m

(9842 ft.) above sea level

Transit 30.5 m (100 ft.) below sea level to 12,000 m

(40,000 ft.) above sea level

Airflow and heat dissipation

Figure 8 shows the intended airflow for the DS4200 Express. Allow at least 30 inches in front of the storage subsystem and at least 24 inches behind the storage subsystem for service clearance, proper ventilation, and heat dissipation.

77027-02

Figure 8. DS4200 Express airflow

Table 12 lists the KVA, watts, and Btu calculations. These values assume the power supplies have a 73 percent efficiency and a power factor of 0.99. These tabulated power and heat dissipation values are typical for the storage subsystem. Maximum configuration units are typically operated at higher data rates, have larger random access memory (RAM) capacities, or have different host interface boards.

Table 12. DS4200 Express power and heat dissipation

Parameter KVA Watts (AC) Btu per hour

DS4200 Express 0.454 443 1516

Acoustic noise

Table 13 lists the maximum sound levels emitted by the storage subsystem.

Table 13. DS4200 Express sound levels

Measurement Level

Sound power (normal operation) 6.8 bels Sound pressure (normal operation) 68 dBA

18 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

These levels are measured in controlled acoustical environments according to ISO 7779 and are reported in accordance with ISO 9296. The declared sound power levels indicate an upper limit, below which a large portion of machines operate. Sound pressure levels in your location might exceed the average 1-meter values stated because of room reflections and other nearby noise.

Electrical requirements

This section provides information regarding site power and wiring, storage subsystem AC power requirements, and power cord routing instructions.

Consider the following information when preparing the installation site:

v Protective ground – Site wiring must include a protective ground connection to

the AC power source.

Note: Protective ground is also known as safety ground or chassis ground.

v Circuit overloading – Power circuits and associated circuit breakers must provide

sufficient power and overload protection. To prevent possible damage to the unit, isolate its power source from large switching loads (such as air conditioning motors, elevator motors, and factory loads).

v Power failures – If a total power failure occurs, the unit automatically performs a

power-up recovery sequence without operator intervention after power is restored.

Table 14. DS4200 Express AC power requirements

Low Range High Range

Nominal Voltage 90 to 136 VAC 198 to 264 VAC Frequency (Hertz) 50 to 60 Hz 50 to 60 Hz

Idle Current 3.86 A Maximum Operating Current 4 A/4.54 A Maximum Surge Current 5.04 A

Typical voltage: 115 V AC, 60 Hz, assumes 73% power-supply efficiency and 0.99 power

a c

2.05 A

2.12 A/2.41 A

2.67 A

b c

factor

Typical voltage: 230 V AC, 60 Hz, assumes 73% power-supply efficiency and 0.99 power

factor

The higher number in this range applies when all of the drives are placed in Selfseek

mode.

Site wiring and power

The storage subsystem uses wide-ranging redundant power supplies that automatically accommodate voltages to the AC power source. The power supplies operate within the range of 90 VAC to 264 VAC, at a minimum frequency of 50 Hz and a maximum frequency of 60 Hz. The power supplies meet standard voltage requirements for both domestic (inside USA) and international (outside USA) operation. They use standard industrial wiring with line-to-neutral or line-to-line power connections.

The agency ratings for the DS4200 Express Storage Subsystem are 6 amps at 100 VAC and 2.5 amps at 240 VAC. These are the overall maximum operating currents for this system.

Chapter 1. Introduction 19

AC power recovery

After normal power is restored after a total AC power failure, the storage subsystem performs power-up recovery procedures automatically without operator intervention.

Power cords and receptacles

The storage subsystem ships with two jumper cords used to connect to the rack PDU. You must purchase the power cords that are appropriate for use in a typical outlet in the destination country. See Appendix C, “Power cords,” on page 149 for more information.

Heat output, airflow, and cooling

See “Airflow and heat dissipation” on page 18 for heat output, airflow, and cooling specifications.

Note: In general, disk subsystem reliability tends to decrease as the ambient

temperature of the environment in which it is being used increases. The ambient temperature in the immediate area of the disk enclosure unit should be kept near 22° C (72° F), or lower, to provide better reliability.

When racks that contain many DS4200 Expresss are to be installed together, the following requirements must be met to ensure that the DS4200 Expresss are adequately cooled:

v Air enters at the front of the rack and leaves at the back. To prevent the air that

is leaving the rack from entering the intake of another piece of equipment, you must position the racks in alternate rows, back-to-back and front-to-front. This arrangement is known as “cold aisle/hot aisle” and is shown in Figure 9 on page

21.

v Where racks are in rows, each rack must touch the rack that is next to it to

reduce the amount of hot air that can flow around from the back of the rack into the intakes of the storage expansion enclosures that are in that rack. You should use Suite Attach Kits to completely seal any gaps that remain between the racks. For details about Suite Attach Kits, contact your marketing representative.

v Where racks are in rows front-to-front or back-to-back, a gap of at least 1220 mm

(48 in.) must separate the rows across the cold aisle.

v To ensure correct airflow in each rack, the rack filler plates must be installed in

unused positions. Also, all the gaps in the front of the racks must be sealed, including the gaps between the storage subsystems.

20 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

back

T42 racks

front

1220 mm cold aisle width

Air

Cold aisle

front

T42 racks

back

conditioner

Hot aisle

back

T42 racks

front

Airflow

Figure 9. Example of cold aisle/hot aisle rack configuration

Perforated tiles or gratings

2440 mm between center lines of hot and cold aisle

Chapter 1. Introduction 21

22 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Chapter 2. Installing the storage subsystem

This chapter provides the information that you need to install the DS4200 Express storage subsystem into a rack cabinet.

Before you begin the installation, review the safety information in “Safety” on page xi.

“Installation overview” provides an overview of the entire DS4200 Express installation process. Read this overview before you begin the installation.

Installation overview

Statement 4:

≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb)

CAUTION: Use safe practices when lifting.

Attention: A fully configured DS4200 Express weighs up to 40 kg (88 lb). At least

two other people should help you lift the DS4200 Express from the shipping box. For safety reasons, IBM strongly recommends that you open the sides of the shipping box and remove the CRUs from the DS4200 Express before you lift it from the shipping box to lighten the storage subsystem. See “Removing the CRUs” on page 32.

The following steps summarize the DS4200 Express installation process. Each step below is detailed in this chapter or next two chapters, Chapter 3, “Cabling the storage subsystem,” on page 43 and Chapter 4, “Operating the storage subsystem,” on page 79.

1. Review the preparation recommendations. See “Preparing for installation” on page 25.

2. Prepare the installation site. See “Preparing the site” on page 27.

3. Prepare the rack cabinet. See “Preparing the rack cabinet” on page 27.

4. Fold down and open the sides of the shipping box. Without removing the DS4200 Express from box, you can remove the DS4200 Express rack mounting rails and hardware from the box. The DS4200 Express rack mounting rails and hardware are placed on the bottom of the shipping box (under the DS4200 Express Storage Subsystem). Install the support rails in the rack cabinet. See “Installing the support rails” on page 28.

5. Before removing the DS4200 Express from the shipping box, remove the components from the DS4200 Express chassis to lighten the unit. See “Removing the CRUs” on page 32.

6. Record the serial number, machine type and model number, and RAID controller MAC addresses for your DS4200 Express Storage Subsystem in Appendix A, “Records,” on page 143.

The serial number, machine type, and model number are located on the left edge of the front unit as shown in Figure 10.

Serial number Machine type Model number

ds470042

Figure 10. Example of DS4200 Express serial number, machine type, and model number location

The MAC addresses are located near the Ethernet ports on each RAID controller.

7. Install and secure the DS4200 Express chassis in the rack cabinet. See “Installing the DS4200 Express into a rack on the support rails” on page 36.

8. If needed, replace the components in the installed DS4200 Express chassis. See “Replacing the components” on page 38.

9. Install in the rack cabinet the DS4000 storage expansion enclosure or enclosures you will cable to the DS4200 Express. Follow the instructions in the Installation, User’s, and Maintenance Guide for your DS4000 storage expansion enclosure to set up and mount the storage expansion enclosures.

Attention

Before powering on the DS4200 Express Storage Subsystem, it must be populated with at least two drives. If at least two drives are not installed in each attached storage expansion enclosure or DS4200 Express Storage Subsystem, when you power on the DS4200 Express and its attached storage expansion enclosures, your standard storage partition key might be lost and must be regenerated using instructions on the IBM DS4000 Solutions and Premium Features Web site:

https://www-912.ibm.com/PremiumFeatures/ In addition, the resulting insufficient load to the enclosure power supplies

might cause them to intermittently appear as failed, falsely indicating the power supplies are bad. All drives in the DS4200 Express Storage Subsystem and the connected storage expansion enclosure or enclosures must contain no prior configuration data.

10. Use SFP modules and fibre channel cables to cable the DS4200 Express to the DS4000 storage expansion enclosure or enclosures. See “Connecting storage expansion enclosures to the DS4200 Express” on page 54.

11. Perform one of the following cabling tasks to enable management of the DS4200 Express configuration:

24 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

v If you are using out-of-band management, cable the DS4200 Express

Ethernet ports to either the management workstation or the host.

v If you are using in-band management, cable the DS4200 Express host

channels to the fibre channel host bus adapters (HBAs) in either the hosts or the fibre channel switch that connects to the host HBAs. See “Connecting hosts to the DS4200 Express” on page 72.

12. Connect the power cables for the DS4200 Express. See “Cabling the power supply” on page 78.

13. Power on the attached storage expansion enclosure and the DS4200 Express Storage Subsystem using the procedure described in “Powering on the storage subsystem” on page 81.

14. Install the DS4000 Storage Manager 9.16 host software on the management workstation (for out-of-band management) or on the host (for in-band management). Refer to the IBM System Storage DS4000 Storage Manager

9.16 Installation and Support Guide for the appropriate operating system for

instructions on how to install the DS4000 Storage Manager 9.16 host software.

15. Use the DS4000 Storage Manager 9.16 host software to verify the configuration.

16. Review and perform the procedures described in “Performing the DS4000 Health Check process” on page 79.

Handling static-sensitive devices

Attention: Static electricity can damage electronic devices and your system. To

avoid damage, keep static-sensitive devices in their static-protective packages until you are ready to install them.

To reduce the possibility of electrostatic discharge, observe the following precautions:

v Limit your movement. Movement can cause static electricity to build up around

you.

v Handle the device carefully, holding it by its edges or its frame. v Do not touch solder joints, pins, or exposed printed circuitry. v Do not leave the device where others can handle and possibly damage the

device.

v While the device is still in its static-protective package, touch it to an unpainted

metal part of the system unit for at least two seconds. This drains static electricity from the package and from your body.

v Remove the device from its package and install it directly into your system unit

without setting it down. If it is necessary to set the device down, place it in its static-protective package. Do not place the device on your system unit cover or on a metal table.

v Take additional care when handling devices during cold weather because heating

reduces indoor humidity and increases static electricity.

Preparing for installation

Before installing the DS4200 Express Storage Subsystem, create a detailed plan of how this unit will be used in your storage configuration. The plan should include determining RAID levels, fallover requirements, operating systems to be used, and total storage capacity requirements.

Chapter 2. Installing the storage subsystem 25

Complete the following steps to prepare the DS4200 Express Storage Subsystem for installation into a rack cabinet:

1. Prepare the site to meet all area, environmental, power, and site requirements. For more information, see “Specifications” on page 16.

2. Move the shipping box that contains the DS4200 Express to the site.

Statement 4:

≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb)

CAUTION: Use safe practices when lifting.

3. Remove the mounting rails, mounting hardware, and line jumper cords from the DS4200 Express shipping box. Do not remove the DS4200 Express from the shipping box at this time.

Attention: The mounting rails, mounting hardware, and line jumper cords may

be packed beneath the DS4200 Express in the shipping box. To remove these items from the shipping box without first removing the DS4200 Express, open the two long sides of the shipping box. Then open and fold flat the two short sides of the shipping box. This enables you to access the mounting rails, mounting hardware, and line jumper cords without first removing the DS4200 Express from the shipping box.

After you open the DS4200 Express shipping container and remove the mounting rails, mounting hardware, and line jumper cords, check the remaining contents (see “Inventory checklist” on page 3) without removing the DS4200 Express from the shipping box. If any items are missing, contact your IBM reseller or representatives before proceeding.

4. Verify that you have the appropriate host software kit for your operating system. Depending on the DS4200 Express model you order, your DS4200 Express will

ship with either the Microsoft Windows host software attachment kit or with your choice of host software kits (Windows, AIX, Linux, Netware, SUN Solaris, HP-UX, Linux on POWER, or VMware). The host software kit grants you permission to attach host servers using the appropriate operating system to the DS4200 Express.

The kit includes a DS4000 Storage Manager Version 9.16 Support CD that has the appropriate IBM DS4000 Storage Manager host software. If you order more than one host software kit, the additional kits may also be shipped in the DS4200 Express shipping box.

The CD also includes the DS4000 Storage Subsystem controller firmware

06.16.xx.xx or later. For the latest controller firmware, check the IBM support Web site for DS4000 storage products:

www.ibm.com/servers/storage/support/disk/

26 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

5. Read the appropriate readme files that are included in the Storage Manager host software or DS4200 Express controller firmware packages for any updated information about hardware, software, or firmware products.

6. Continue with “Preparing the site.”

Tools and hardware required

Gather the tools and equipment you will need for installation. These might include:

v Region-specific power cords required for the DS4200 Express v 5/16 (8 mm) hex nut driver v #2 Phillips screwdriver v Antistatic protection (such as a grounding wrist strap) v Fibre channel (FC) and Ethernet interface cables and cable straps v Rack power jumper cords that are shipped with the DS4200 Express v SFP modules v Rack-mounting hardware that ships with the DS4200 Express

Preparing the site

This section lists the floor space requirements and weight information for the DS4200 Express. For information on interface cables and connections, see Chapter 3, “Cabling the storage subsystem,” on page 43.

Floor space: The floor area at the installation site must provide the following

conditions:

v Sufficient space to install the DS4200 Express v Enough stability to support the weight of the fully configured DS4200 Express

and associated systems. A fully configured DS4200 Express weighs 40 kg (88 lb.).

Ensure

that all requirements, such as floor space, air conditioning, and electrical

service, have been met. Other site preparation activities include the following tasks:

v To ensure that there is enough room to move around the cabinet and install

modules, clear space at the installation area.

v Install uninterruptible power supply (UPS) devices. v If applicable, install host servers with fibre channel host bus adapters (HBAs),

fibre channel switches, or other devices.

v Route interface cables from the fibre channel HBA ports in the hosts or fibre

channel switches to the installation area.

v Route main power cords to the installation area.

Continue

with “Preparing the rack cabinet.”

Preparing the rack cabinet

Important: Before you install the DS4200 Express in a rack cabinet, keep in mind

the following considerations:

v Review the documentation that comes with your rack enclosure for safety and

cabling considerations.

v Install the DS4200 Express in a recommended 22° C (72° F) environment. See

“Environmental requirements and specifications” on page 17 for details.

v To ensure proper airflow, do not block the air vents; ensure at least 15 cm (6 in.)

of air space.

Chapter 2. Installing the storage subsystem 27

v To ensure rack stability, load the rack starting at the bottom. v If you install multiple components in the rack, do not overload the power outlets. v Always connect the storage subsystem to a properly grounded outlet. v Always connect the IBM-certified rack power distribution units (PDUs) to at least

two independent power circuits or sources.

Complete

the following steps to prepare the rack cabinet before you install the

DS4200 Express:

1. Move, unpack, and level the rack at the installation site (if needed).

2. Remove the external rack panels.

3. If necessary, stop all I/O activity to the devices in the rack.

4. If necessary, turn off all drive enclosure and rack power. Disconnect existing power, network, and other external cables.

5. Install any additional interface cables and power cables.

After you have completed these steps, continue with “Installing the support rails.”

Installing the support rails

Attention: Duplicate copies of the rack mounting templates are provided in

Appendix B, “Rack mounting template,” on page 147. If you want to tear out the templates from this document for easier use, use the copies in Appendix B, “Rack mounting template,” on page 147 rather than the copies provided in this section.

Use the following templates (Figure 11 on page 29 and Figure 12 on page 30) to identify the proper locations for inserting M5 screws when mounting the support rails and DS4200 Express Storage Subsystem to a rack cabinet. The locations for the M5 screws are highlighted in the templates.

Hold the appropriate template up to each side of the rack cabinet at the 3-U section where you will install theDS4200 Express. U boundaries are shown as horizontal dashed lines in the rack mounting templates. The highlighted squares on each side of the template mark the positions where you will thread the M5 screws that secure the rails and the DS4200 Express to the front and rear of the cabinet.

Note: The mounting holes that are shown in the following templates are square.

The holes in your rack might be round, square, or threaded.

28 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

DS4200 Express

Install second --->

Install first ---> <--- Install first

Install first --->

Install second --->

Bezel

(Front Left)

Rail assembly

(Front Left)

FRONT

Rack Mounting

Template

Bezel

(Front Right)

Rail assembly

(Front Right)

<--- Install first

Figure 11. Front rack mounting template

ds420001

Chapter 2. Installing the storage subsystem 29

DS4200 Express

Rack Mounting

Rail mounting guide

Rail assembly

(Rear Left)

REAR

Template

Rail assembly

(Rear right)

Printed in the U.S.A

ds420002

Figure 12. Rear rack mounting template

Before installing the DS4200 Express in a rack cabinet, you must install the rails and rack-mounting hardware that come with your storage subsystem. The DS4200 Express requires an Electronic Industries Association (EIA) 310-D Type A 19-inch rack cabinet. The distance between EIA rails, from the front to the rear of the rack, is 60.96 cm (24 in.) minimum and 81.28 cm (32 in.) maximum. This rack conforms to the EIA standard. Where you place the support rails in the rack depends on where you intend to position the storage subsystem.

Complete the following steps to install the support rails:

Note: Refer to Figure 13 on page 32 while performing these steps.

1. Ensure that the rack cabinet has already been installed.

2. Ensure that a stabilizer has been correctly attached to the bottom front of the rack to prevent the rack from tipping forward while the DS4200 Express is being installed.

Refer to the installation and service guide, or equivalent, for the rack as required.

3. Locate the two support rails, eight of the twelve M5 screws, and eight washers that are supplied with the DS4200 Express.

30 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Note: The M5 screws and washers may already be attached to the support

rails. If so, remove them from the support rails.

4. The rack-mounted unit is three EIA units high. Decide accordingly where you are going to install the support rails.

Attention: Use the rack mounting template provided in Figure 11 on page 29

and Figure 12 on page 30 to locate the proper rack mounting holes for installing the support rails into the rack.

Note the following considerations before you choose where to install the rails:

v If you are installing the DS4200 Express into an empty rack, install it into

the lowest available position so that the rack does not become unstable.

v If you are installing more than one DS4200 Express in the rack, start at the

lowest available position, and work upward.

v If appropriate, allow for possible later installation of other units. v If necessary, remove the rack power distribution unit before you install the

support rails.

v For procedures and more information, refer to the installation and service

guide, or equivalent, for the rack.

v The lip on the rail should line up with the bottom of the storage subsystem

(the 0U boundary in Figure 12 on page 30).

5. Using a #2 Phillips screwdriver, loosen the two screws on the left support rail

that hold the two parts of the rail together (5).

The support rails are not marked as left or right. However, each rail can

Note:

be correctly mounted on only one side of the rack cabinet. The rails should be mounted with the alignment pins at the back of the rack. Figure 13 on page 32 shows the installation of the left support rail.

6. Hold the back of the rail against the inside of the rack-mounting flange. Make sure the rail mounting guide pins are in the correct holes. See Figure 12 on page 30 for an illustration.

7. Using the 5/16 (8 mm) hex nut driver, securely tighten the two M5 screws (2).

Make sure you use a washer when installing an M5 screw through a

Note:

square hole on the rack-mounting flange.

8. Extend the rail to the front of the rack until it makes contact with the front rack-mounting flange (3).

9. Securely tighten the M5 screws (1).

Be sure to install the screw labeled install first in Figure 11 on page 29.

Note:

10. Securely tighten the two screws on the left support rail that hold the two parts of the rail together (5).

11. Repeat step 5 through step 10 for the right support rail.

Because the mounting holes on the rack are not always the same size

Note:

as the mounting screws, the lip (6) of each of the support rails may not line up evenly. Make minor adjustments as needed to ensure that the lip of the left and right support rails are lined up evenly on the racks. Failure to do so will cause the storage subsystem to fit unevenly in the rack.

Chapter 2. Installing the storage subsystem 31

Figure 13. Installing the support rails

12. Continue with “Removing the CRUs.”

Installing the DS4200 Express

This section provides instructions on installing the DS4200 Express. The installation process includes:

v “Removing the CRUs” v “Installing the DS4200 Express into a rack on the support rails” on page 36 v “Replacing the components” on page 38

Rear of Rack

Removing the CRUs

This section describes how to remove the CRUs to minimize the weight of the DS4200 Express before you install it in the rack. However, if you have three or more people available to lift and install the DS4200 Express in a rack, you might not find it necessary to remove the CRUs before you install the DS4200 Express. If this is the case, you can skip the CRU removal instructions provided in this section. Instead, continue with “Installing the DS4200 Express into a rack on the support rails” on page 36, and then skip the CRU replacement instructions provided in “Replacing the components” on page 38.

Attention: Remove CRUs from the DS4200 Express chassis to lessen the weight

to make it easier to transfer the DS4200 Express Storage Subsystem from the shipping box to the rack.

Use the following procedures to remove the CRUs from the DS4200 Express before installation. Use these instructions after you have completed all applicable site, rack, and preparations (as listed in “Preparing for installation” on page 25) and installed the support rails (as listed in “Installing the support rails” on page 28). Alternately, if necessary, you can use these instructions to lighten the DS4200 Express before removing it from the shipping box. The shipping box opens to provide access to the storage subsystem CRUs.

32 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

The DS4200 Express comes with a rack-mounting hardware kit for installing it in a rack. It is easier to lift the DS4200 Express and install it in a rack cabinet if you remove all the CRUs first. You will need an antistatic wrist strap and a cart or level surface (to hold the CRUs). Observe the precautions listed in “Handling static-sensitive devices” on page 25. In the following procedure, you will remove the following CRUs from the storage subsystem before you install it in the rack:

v Controllers v Power supply and fan units v Hot-swap EV-DDMs

do not need to remove the blank trays.

You

Statement 4:

≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb)

CAUTION: Use safe practices when lifting.

Attention: The storage subsystem comes with a bezel that is attached to the front

of the unit. The bezel protects the light pipes that are located above the drive trays. Leave the protective bezel in place until you are instructed to remove it.

Removing a controller

Complete the following steps to remove a controller:

1. Squeeze the controller latch and pull the lever open 90° (so that the lever is

horizontal) to release the controller from the latch. The controller latch is a coral colored tab on the lever.

The lever rotates upward or downward 90°, depending on whether the

Note:

controller you are removing is the right or left controller CRU.

2. Slowly pull the lever away from the chassis to remove the controller from the

bay, as shown in Figure 14 on page 34.

Chapter 2. Installing the storage subsystem 33

ds470010

Lever

Figure 14. Removing and replacing a controller

3. Place the controller on a level surface.

4. Repeat step 1 on page 33 through step 3 for the second controller.

Removing a power supply and fan unit

Statement 5:

2 1

CAUTION: Disconnect the power cord before removing the power supply and fan unit.

Complete the following steps to remove a power supply and fan unit:

1. Squeeze the latch and pull the lever open 90° (so that the lever is horizontal) to release the power supply and fan unit from the latch. The latch is a coral colored tab on the lever.

2. Slowly pull the lever away from the chassis to remove the power supply and fan unit, as shown in Figure 15 on page 35.

Note: The lever rotates upward or downward 90°, depending on whether the

power supply and fan unit you are removing is in the left or right power supply and fan unit bay.

34 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Ds470011

Lever

Figure 15. Removing a power supply and fan unit

3. Place the power supply and fan unit on a level surface.

4. Repeat step 1 on page 34 through step 3 for the second power supply and fan unit.

Removing an EV-DDM

Complete the following steps to remove a hot-swap EV-DDM:

Note: The EV-DDM comes installed in a drive tray. Do not attempt to detach the

EV-DDM from the tray.

1. Use Table 37 on page 146 to record the location and identify your EV-DDMs. You must record this information to be able to replace the EV-DDM in their original order before they were removed.

2. Release the latch on the EV-DDM CRU by pressing on the inside of the bottom of the tray handle.

3. Lift the closed latch to its open position. (The latch is at a 90° angle to the front of the drive when open.)

4. Pull the EV-DDM out of the bay, as shown in Figure 16 on page 36.

Chapter 2. Installing the storage subsystem 35

Figure 16. Removing a EV-DDM CRU

5. Place the EV-DDM CRU horizontally on a level surface.

Attention: Do not stack EV-DDM CRUs on top of one another. Protect the

EV-DDM CRUs from vibrations or sudden shocks.

6. Repeat step 1 on page 35 through step 4 on page 35 for additional EV-DDM CRUs.

Installing the DS4200 Express into a rack on the support rails

Complete the following steps to install the DS4200 Express in the rack cabinet.

CAUTION: Do not install modules or other equipment in the top half of a rackmount cabinet while the bottom half is empty. Doing so can cause the cabinet to become top-heavy and tip over. Always install hardware in the lowest available position in the cabinet.

Statement 4:

≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb)

CAUTION: Use safe practices when lifting.

1. Put on antistatic protection, and keep it on while performing all of the remaining procedures in this chapter.

36 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

2. Using a #2 Phillips screwdriver, remove the four screws from the rails (two screws in each rail). See 4 in Figure 13 on page 32. If you do not remove these screws, the storage subsystem will not fit securely.

Note: If the screws are shipped in the hardware pack instead of already

installed in the rails, skip this step and go to step 3.

3. Place the storage subsystem in the rack.

Note: If you have removed the CRUs from the DS4200 Express, you should be

able to lift the unit into the cabinet with the help of one other person. If you have not removed the CRUs before the installation, you should have at least two other people available to help you lift the DS4200 Express

into the rack. a. Move the storage subsystem to the front of the rackmount cabinet. b. With help from another person, place the back of the storage subsystem on

the support rails, and then slide the unit into the rack as shown in Figure 17.

Front of Rack

Figure 17. Installing the DS4200 Express

4. Secure the storage subsystem. Figure 18 on page 38 shows how to secure the storage subsystem to the rack.

a. Align the front mounting holes on each side of the storage subsystem with

the mounting holes on the front of the support rails.

b. Using the screws that you removed in step 2, secure the sides in the back

of the DS4200 Express to the rack rails.

c. Secure the front of the DS4200 Express using the four M5 screws as shown

in Figure 18 on page 38.

Chapter 2. Installing the storage subsystem 37

Figure 18. Securing the DS4200 Express to the rack cabinet

5. Continue with one of the following actions:

v If you did remove the DS4200 Express CRUs before installation (as

described in “Removing the CRUs” on page 32), continue with “Replacing the components.”

v If you did not remove the DS4200 Express CRUs before installation, continue

with Chapter 3, “Cabling the storage subsystem,” on page 43.

Replacing the components

Use the following procedures to replace the components in the DS4200 Express after it is installed successfully in a rack cabinet.

Replacing a controller

Complete the following steps to replace the controller that you removed before the installation:

Attention: After you remove an controller, wait 70 seconds before reseating or

replacing the controller. Failure to do so may cause undesired events. The left and right controllers are seated in the DS4200 Express chassis in opposite orientations. If you cannot fully insert the controller into the controller bay, flip it 180° and reinsert it.

1. Slide one controller into the empty slot in the storage subsystem. Be sure that the lever is pulled straight out as you slide the controller in, as shown in Figure 19 on page 39.

38 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Notch

Guide pin

Lever

Figure 19. Removing and replacing a controller

2. As you slide the controller into the empty slot, make sure the guide pins on the side of the controller fit into the notches. After the guide pins fit into the notches and the controller fits snugly into the bay, push the lever downward or upward 90°, depending on whether the controller is inserted in the A or B controller bay to fully latch it into place. Do not force fit. The controller is designed to prevent it from being inserted into the chassis incorrectly.

Attention: Make sure that the levers lock into place in the storage subsystem

chassis.

3. Repeat step 1 on page 38 and step 2 to replace the second controller.

Replacing a power supply and fan unit

Statement 5:

2 1

Chapter 2. Installing the storage subsystem 39

CAUTION: Disconnect the power cord before replacing the power supply and fan unit.

Complete the following steps to replace the power supply and fan units that you removed before the installation:

1. Slide one power supply and fan unit into the storage subsystem. Be sure to replace the power supply and fan units so that the lever on each power supply and fan unit opens toward the interior of the storage subsystem, as shown in Figure 77 on page 127. Do not force fit. The power supply and fan unit is designed to prevent it from being inserted into the chassis incorrectly.

Attention: Be sure that the lever is pulled straight out as you slide the power

supply and fan unit into the storage subsystem, as shown in Figure 20. The left and right power supply and fan units are seated in the DS4200 Express chassis in opposite orientations. If you cannot fully insert the power supply and fan unit into the power supply and fan unit bay, flip it 180° and reinsert it.

Lever

Figure 20. Replacing a power supply and fan unit

2. As you slide the power supply and fan unit into the empty slot, make sure the guide pins on the side of the power supply and fan unit fit into the notches along the sides of the power supply and fan unit bay. After the guide pins fit into the notches and power supply and fan unit fits snugly into the slot, push the lever upward or downward 90° depending on whether the power supply fan is inserted in the left or right bay to fully latch it into place. Then gently push the front of the power supply and fan unit to ensure that it is fully seated.

3. Repeat step 1 and step 2 to replace the second power supply and fan unit.

Replacing an EV-DDM

Complete the following steps to replace the hot-swap EV-DDMs that you removed before the installation.

Attention: After you remove a EV-DDM CRU, wait 70 seconds before replacing

or reseating it to allow the EV-DDM to properly spin down. Failure to do so may cause undesired events.

Use Table 37 on page 146 to verify the proper replacement locations of your

Note:

EV-DDMs.

40 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

1. Lift up on the handle and gently push the EV-DDM CRU into the empty bay until the hinge of the tray handle latches beneath the storage subsystem bezel, as show in Figure 21.

Figure 21. Replacing an EV-DDM

2. Push the tray handle down until the latch clicks into place.

3. Repeat step 1 and step 2 to replace additional EV-DDMs.

Chapter 2. Installing the storage subsystem 41

42 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Chapter 3. Cabling the storage subsystem

After the storage subsystem is installed in its permanent location, you must cable it to hosts, drives, and other external devices, depending on your hardware configuration.

This chapter addresses the following cabling and configuration topics:

v “Enclosure ID settings ” v “Fibre-channel loop and ID settings” on page 44 v “Working with SFPs and fiber-optic cables” on page 44 v “Connecting storage expansion enclosures to the DS4200 Express” on page 54 v “Connecting hosts to the DS4200 Express” on page 72 v “Connecting secondary interface cables” on page 69 v “Configuring the storage subsystem” on page 70 v “Installing the storage subsystem configuration” on page 77 v “Cabling the power supply” on page 78

Enclosure ID settings

The enclosure ID, comprised of two seven-segment numbers, is located on the back of each controller next to the indicator lights. It provides a unique identifier for each enclosure in the DS4000 storage subsystem configuration.

The controller automatically sets the enclosure ID number. You can change the setting through the storage management software if necessary. Both controller enclosure ID numbers are identical under normal operating conditions.

The allowable ranges for enclosure ID settings are 0-99. Do not set the enclosure ID to 00 or any number less than 80. The DS4200 Express enclosure ID is normally set to a value of 85 at the factory.

Figure 22 shows the enclosure ID on the DS4200 Express.

ds420009

Figure 22. Storage subsystem seven-segment enclosure ID on the DS4200 Express Table 15. Description of Figure 22

Number Description

1 Enclosure ID

Fibre-channel loop and ID settings

When you install a hard disk drive in the storage subsystem, the drive tray plugs into a printed circuit board called the midplane. The midplane sets the fibre-channel loop ID automatically, based on the enclosure ID switch setting and the physical location (bay) of the hard disk drive.

Working with SFPs and fiber-optic cables

Each DS4200 Express RAID controller has two single-ported host channel connections and two dual-ported drive channel connections. You use a small-form factor pluggable transceiver (SFP) to connect each host channel port and drive channel port to hosts and storage expansion enclosures. The SFP is inserted into the port, and then a fiber-optic cable is inserted into the SFP. The other end of the fiber-optic cable connects to an external device. SFPs are laser products.

Statement 3:

CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following:

v Do not remove the covers. Removing the covers of the laser product could

result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

v Use of controls or adjustments or performance of procedures other than

those specified herein might result in hazardous radiation exposure.

DANGER

laser products contain an embedded Class 3A or Class 3B laser

Some diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

Handling fiber-optic cables

Attention: To avoid damage to your fiber-optic cables, follow these guidelines:

v Do not route the cable along a folding cable-management arm. v For devices on slide rails, leave enough slack in the cables so they do not bend

to a diameter of less than 76 mm (3 in.), or a radius less than 38 mm (1.5 in.), when extended or become pinched when retracted.

v Route the cable away from places where it can be damaged by other devices in

the rack cabinet.

v Do not use plastic cable ties in place of the provided cable straps.

44 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

v Do not overtighten the cable straps or bend the cables to a diameter of less than

76 mm (3 in.), or a radius less than 38 mm (1.5 in.).

v Do not put excess weight on the cable at the connection point. Be sure that the

cable is well supported.

v The following are the recommended maximum cable lengths:

– 1 Gbps: 500 meters 50/125 um fiber, 300 meters 62.5/125 um fiber – 2 Gbps: 300 meters 50/125 um fiber, 150 meters 62.5/125 um fiber – 4 Gbps: 150 meters 50/125 um fiber, 70 meters 62.5/125 um fiber

Installing SFP modules

The DS4200 Express host and drive interface ports require SFP modules. SFP modules convert electrical signals to optical signals that are required for fibre channel transmission to and from RAID controllers. After you install the SFP modules, you use fiber-optic cables to connect the DS4200 Express to other fibre channel devices.

Before installing SFP modules and fiber-optic cables, read the following information:

v Do not mix long-wave SFPs and short-wave SFPs on a single storage

subsystem. Use only short-wave SFPs. You can use the DS4000 Storage Manager client to view the Storage Subsystem Profile to verify that you are not mixing long-wave and short-wave SFPs.

Attention: In addition, do not use long-wave SFPs or GBICs in any of the fibre

channel ports in the DS4200 Express controllers. (Long-wave SFPs and GBICs are not supported for use in the DS4200 Express or any of the attached DS4000 storage expansion enclosures. Long-wave SFPs and GBICs are only supported in the fibre channel switch ports to which the DS4200 Express Storage Subsystem connects.)

v The SFP module housing has an integral guide key that is designed to prevent

you from inserting the SFP module improperly.

v Use minimal pressure when inserting an SFP module into an SFP port. Forcing

the SFP module into a port could cause damage to the SFP module or to the port.

v You can insert or remove the SFP module while the port is powered on. v The operational or redundant loop performance is not affected when you install

or remove an SFP module.

v You must insert the SFP module into a port before you connect the fiber-optic

cable.

v You must remove the fiber-optic cable from the SFP module before you remove

the SFP module from the port. Refer to “Removing SFP modules” on page 47 for more information.

v The speed of the SFP module determines the maximum operating speed of the

fibre channel port in which the SFP is installed. For example, a 2-Gbps SFP that is plugged into a 4-Gbps-capable port will limit the speed of that port to a maximum of 2 Gbps.

Attention: Carefully check the SFP's IBM part number, option number, and

FRU part number to identify its speed. There are no physical features that distinguish a 4 Gbps from a 2 Gbps SFP.

Statement 3:

Chapter 3. Cabling the storage subsystem 45

CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following:

v Do not remove the covers. Removing the covers of the laser product could

result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

v Use of controls or adjustments or performance of procedures other than

those specified herein might result in hazardous radiation exposure.

DANGER

laser products contain an embedded Class 3A or Class 3B laser

Some diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

Attention: When you handle static-sensitive devices, take precautions to avoid

damage from static electricity. For details about handling static-sensitive devices, see “Handling static-sensitive devices” on page 25.

To install an SFP module, complete the following steps:

1. Remove the SFP module from its static-protective package.

2. Remove the protective cap from the SFP module, as shown in Figure 23. Save the protective cap for future use.

Plastic tab

Protective cap

SFP module

Figure 23. SFP module and protective cap

3. Remove the protective cap from the SFP port. Save the protective cap for future use.

4. Insert the SFP module into the host port until it clicks into place. See Figure 24 on page 47.

46 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Protective cap

Figure 24. Installing an SFP module into the host port

5. Connect an LC-LC fibre-channel cable. For information about the LC-LC cable, see “Using LC-LC fibre-channel cables” on page 48.

Removing SFP modules

Complete the following steps to remove the SFP module from the host port:

Attention: To avoid damage to the cable or to the SFP module, make sure that

you unplug the LC-LC fibre-channel cable before you remove the SFP module.

1. Remove the LC-LC fibre-channel cable from the SFP module. For more information, see “Removing an LC-LC fibre-channel cable” on page 50.

2. Unlock the SFP module latch:

v For SFP modules that contain plastic tabs, unlock the SFP module latch by

pulling the plastic tab outward 10°, as shown in Figure 25.

Plastic tab

SFP module

Plastic tab

Protective cap

SFP module

Figure 25. Unlocking the SFP module latch - plastic variety

v For SFP modules that contain wire tabs, unlock the SFP module latch by

pulling the wire latch outward 90°, as shown in Figure 26 on page 48.

Chapter 3. Cabling the storage subsystem 47

Wire

tab

Protective

cap

SFP

module

Figure 26. Unlocking the SFP module latch - wire variety

3. With the SFP latch in the unlocked position, extract the SFP module.

v For SFP modules that contain plastic tabs, slide the SFP module out of the

port.

v For SFP modules that contain wire tabs, grasp the wire latch and pull the

SFP module out of the mini-hub port.

Replace the protective cap on the SFP module.

5. Place the SFP module into a static-protective package.

6. Replace the protective cap on the host port.

Using LC-LC fibre-channel cables

The LC-LC fibre-channel cable is a fiber-optic cable that you use to connect DS4200 Express fibre channel ports into one of the following devices:

v An SFP module installed in a fibre channel switch port v An SFP module of the host bus adapter port v An SFP module installed in an IBM DS4000 storage expansion enclosure

Figure 27 for an illustration of the LC-LC fibre-channel cable.

See For more information about cabling these devices, see the documentation that

comes with the LC-LC fibre-channel cable.

Figure 27. LC-LC fibre-channel cable

Connecting an LC-LC cable to an SFP module

Complete the following steps to connect an LC-LC fibre-channel cable to an SFP module:

48 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Statement 3:

CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following:

v Do not remove the covers. Removing the covers of the laser product could

result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

v Use of controls or adjustments or performance of procedures other than

those specified herein might result in hazardous radiation exposure.

DANGER

laser products contain an embedded Class 3A or Class 3B laser

Some diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

1. Read the information in “Handling fiber-optic cables” on page 44.

2. If necessary, remove the protective cap from the SFP module, as shown in Figure 23 on page 46. Save the protective cap for future use.

3. Remove the two protective caps from one end of the LC-LC cable, as shown in Figure 28. Save the protective caps for future use.

Figure 28. Removing fiber-optic cable protective caps

Fibre-optic cable

Protective cap

4. Carefully insert this end of the LC-LC cable into an SFP module that is installed in the DS4200 Express. The cable connector is keyed to ensure it is inserted into the SFP module correctly. Holding the connector, push in the cable until it clicks into place, as shown in Figure 29 on page 50.

Chapter 3. Cabling the storage subsystem 49

Figure 29. Inserting an LC-LC fibre-channel cable into an SFP module

5. Remove the two protective caps from the other end of the LC-LC cable. Save the protective caps for future use.

6. Connect this end of the LC-LC cable to one of the following devices:

v An SFP module that is installed in a separate EXP420 storage expansion

enclosure

v An SFP module that is installed in a fibre channel switch port v A fibre channel host bus adapter port

Removing an LC-LC fibre-channel cable

Complete the following steps to remove an LC-LC fibre-channel cable:

Attention: To avoid damaging the LC-LC cable or SFP module, make sure that

you observe the following precautions:

v Press and hold the lever to release the latches before you remove the cable from

the SFP module.

v Ensure that the levers are in the released position when you remove the cable. v Do not grasp the SFP module plastic tab when you remove the cable.

1. On the end of the LC-LC cable that connects into the SFP module or host bus adapter, press down and hold the lever to release the latches, as shown in Figure 30.

Lever

Latches

30. LC-LC fibre-channel cable lever and latches

Figure

2. While pressing down the cable lever, carefully pull on the connector to remove the cable from the SFP module, as shown in Figure 31 on page 51.

50 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Figure 31. Removing the LC-LC fibre-channel cable

3. Replace the protective caps on the cable ends.

4. Replace the protective cap on the SFP module.

Using LC-SC fibre-channel cable adapters

The LC-SC fibre-channel cable adapter is a fiber-optic cable that is used to connect an LC connector into one of the following devices that require SC connectors:

v 1-Gbps fibre channel switch v Fibre channel host bus adapter

Attention: The DS4200 Express does not support the attachment of storage

expansion enclosures that operate at 1 Gbps, such as the EXP500. For more information about connecting to these devices, see the documentation

that comes with the LC-SC fibre-channel cable adapter.

LC connector

f10ug012

SC connector

Figure 32. LC-SC fibre-channel cable adapter

The following sections provide the procedures for properly connecting and removing an LC-SC fibre-channel cable.

Connecting an LC-SC cable adapter to a device

Complete the following steps to connect an LC-SC fibre-channel cable adapter to a device:

Statement 3:

Chapter 3. Cabling the storage subsystem 51

CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following:

v Do not remove the covers. Removing the covers of the laser product could

result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

v Use of controls or adjustments or performance of procedures other than

those specified herein might result in hazardous radiation exposure.

DANGER

laser products contain an embedded Class 3A or Class 3B laser

Some diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

1. Read the information in “Handling fiber-optic cables” on page 44.

2. Connect one end of an LC-LC cable to an SFP module inserted in the DS4200 Express fibre channel host port. For instructions, see “Using LC-LC fibre-channel cables” on page 48.

3. Remove the two protective caps from the LC connector end of the LC-SC cable adapter as shown in Figure 33. Save the protective caps for future use.

f10ug013

Figure 33. Removing the LC-SC cable adapter protective caps

4. Carefully insert the other end of the LC-LC cable into the LC connector end of the LC-SC cable adapter as shown in Figure 34 on page 53. Push in the connector until it clicks into place.

52 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

f10ug020

Figure 34. Connecting an LC-LC cable into the LC-SC cable adapter

5. If you are connecting the DS4200 Express host port to a 1-Gbps fibre channel switch or fibre channel host bus adapter, connect the SC connector end of the LC-SC cable adapter to a Gigabit Interface Converter (GBIC) that is installed in the 1-Gbps fibre channel switch or fibre channel host bus adapter. For more information about connecting to these devices, see the documentation that comes with the device.

Removing an LC-LC cable from an LC-SC cable adapter

Complete the following steps to remove an LC-LC cable from an LC-SC cable adapter:

Attention: To avoid damaging the LC-LC cable, make sure you press and hold

the lever to release the latches before you remove the cable from an LC-SC cable adapter. Ensure that both levers are in the released position when removing the cable. When removing the cable from the SFP module, make sure you do not grasp the SFP module plastic tab.

1. On the end of the cable that connects into the LC connector end of the LC-SC cable adapter, press down and hold the lever to release the latches. Figure 35 shows the location of the lever and latches.

Lever

Latches

35. LC-LC fibre-channel cable lever and latches

Figure

f10ug018

2. Carefully pull on the connector to remove it. Make sure you grasp the connector and not the cable when removing the LC-LC cable from the LC-SC cable adapter as shown in Figure 36 on page 54.

Chapter 3. Cabling the storage subsystem 53

f10ug015

Figure 36. Removing the LC-LC fibre-channel cable from an LC-SC fibre-channel cable adapter

3. Replace the protective caps on the cable ends.

Connecting storage expansion enclosures to the DS4200 Express

Attention

https://www-912.ibm.com/PremiumFeatures/ In addition, the resulting insufficient load to the enclosure power supplies

In the initial installation of the DS4200 Express, you can add only new storage

expansion enclosures to the DS4200 Express Storage Subsystem. This means that there must be no existing configuration information on the storage expansion enclosures that you want to install. Also, only EXP420 storage expansion enclosures are supported in a DS4200 Express configuration.

If the storage expansion enclosures that you want to install currently contain logical drives or configured hot spares, and you want them to be part of the DS4200 Express Storage Subsystem configuration, refer to the IBM System Storage

DS4000 Hard Drive and Storage Expansion Enclosure Installation and Migration Guide. Improper drive migration might cause loss of configuration and other storage

subsystem problems. Contact your IBM technical support representative for additional information.

54 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Redundant drive channel pair

Each controller on the DS4200 Express has a drive channel that contains two ports. The storage expansion enclosures that are connected to these two ports form a drive channel (also referred to as drive loop in certain DS4000 storage subsystem models). The maximum number of hard drives that can be installed in one drive channel, including the 16 E-DDMs in the DS4200 Express internal drive slots, is

112. One drive channel from each controller combines to form a redundant drive

channel pair. Figure 37 on page 56 shows an example of a redundant drive channel pair. If any

component of the drive channel fails, the RAID controllers can still access the storage expansion enclosures in the redundant drive channel pair.

Note: In the following drive cabling figures, the DS4200 Express graphics are

simplified to show only the drive ports of each controller.

Chapter 3. Cabling the storage subsystem 55

Redundant

Drive Channel

pair

Drive

Channel 1, port 2

Drive Channel 1, port 1

Left ESM

DS4200

Left ESM

Right ESM

Drive

Channel 2, port 1

Drive Channel 2, port 2

Left ESM

Right ESM

Figure 37. Example of a redundant drive channel pair

Overview of steps to connect storage expansion enclosures to a storage subsystem

To connect storage expansion enclosures to the storage subsystem, perform the following steps:

The following procedures are for ″cold-case″ procedures (in which the

Note:

DS4200 Express is powered down when storage expansion enclosures are connected, as in the case of initial installation). For ″hot-case″ procedures (in which the DS4200 Express is powered on when storage expansion enclosures are connected), refer to the IBM System Storage DS4000 Hard Drive and Storage Expansion Enclosure Installation and Migration Guide.

ds420003

56 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

1. Follow the instructions in the Installation, User’s, and Maintenance Guide for your DS4000 storage expansion enclosure to set up and mount the storage expansion enclosures.

Currently, the only DS4000 drive expansion enclosures that can be

Note:

attached to the DS4200 Express Storage Subsystem are EXP420s. Contact your IBM reseller or representatives for other supported storage expansion enclosures in the future. You can also check the interoperability matrix at the following Web site:

www.ibm.com/servers/storage/disk/ds4000/interop-matrix.html

2. Select a cabling topology appropriate for the number of storage expansion enclosures you will connect to the DS4200 Express. If you are connecting external storage expansion enclosures to the DS4200 Express, ensure that the storage expansion enclosures are populated with at least two drives before you power them on. In addition, you must have at least two drives in the DS4200 Express Storage Subsystem before you power it on.

“DS4200 Express Storage Subsystem drive cabling topologies” describes the recommended schemes for cabling different numbers of storage expansion enclosures to the DS4200 Express and to each other (if you are connecting more than one storage expansion enclosure).

3. After you select the cabling topology for your configuration, follow the cabling diagram for your chosen topology and perform the steps identified in “DS4200 Express Storage Subsystem and supported storage expansion enclosure drive cabling schemes” on page 63.

4. If required, set unique enclosure IDs for all storage expansion enclosures that are cabled to the DS4200 Express.

Note: The initial release of the DS4200 Express supports EXP420 storage

expansion enclosures only. The enclosure ID on the EXP420 is automatically set by the controller so you do not have to manually set it.

DS4200 Express Storage Subsystem locates the drives in the storage

The expansion enclosures after you power on the configuration. Always connect power to the storage expansion enclosures first and then connect power to the DS4200 Express. After you have powered on the configuration, use the DS4000 Storage Manager client to check the status of the new drives, correct any errors found, and configure the new drives.

DS4200 Express Storage Subsystem drive cabling topologies

This section provides preferred cabling topologies for cabling storage expansion enclosures to the DS4200 Express Storage Subsystem. The cabling topologies include the following:

v “One DS4200 Express and one storage expansion enclosure” on page 58 v “One DS4200 Express and two storage expansion enclosures” on page 59 v “One DS4200 Express and three storage expansion enclosures” on page 61 v “One DS4200 Express and four storage expansion enclosures” on page 61 v “One DS4200 Express and up to six storage expansion enclosures” on page 61

example provides redundant paths to the drives. If one of these examples is

Each suitable for your hardware and application, complete the cabling connections as described by the graphics. If you have hardware other than what is shown in these examples to include in your topology, use these examples as a starting point for creating your specific topology.

Chapter 3. Cabling the storage subsystem 57

Attention: The DS4200 Express supports the connection of a maximum of six

storage expansion enclosures per redundant drive channel pair. The DS4200 Express supports one redundant drive channel pair.

If you are using fiber-optic cables, install SFP modules into the ports that will receive the cables before installing the cables.

Figure 38 shows the locations of controllers A and B, the single-ported fibre-channel host channels, Ethernet ports, and dual-ported fibre-channel drive channels at the back of the DS4200 Express Storage Subsystem.

Figure 38. DS4200 Express Storage Subsystem ports and controllers

ds470013

Table 16 provides a list of the drive channels associated with each of the controllers on the DS4200 Express Storage Subsystem.

Table 16. DS4200 Express Storage Subsystem host ports and drive channels

Number Description

1 Controller A 2 Controller B 3 Drive Channel 1 - Port 2 on Controller A

Drive Channel 2 - Port 2 on Controller B

4 Drive Channel 1 - Port 1 on Controller A

Drive Channel 2 - Port 1 on Controller B 5 Host Port 2 6 Host Port 1

One DS4200 Express and one storage expansion enclosure

If you are cabling one DS4200 Express Storage Subsystem to one storage expansion enclosure, Figure 39 on page 59 shows the recommended cabling topology.

Figure 39 on page 59 illustrates the drive channel connections between the

Note:

DS4200 Express and the storage expansion enclosures. Do not use Figure 39 on page 59 as the cabling diagram. Follow the instructions in “DS4200 Express Storage Subsystem and supported storage expansion enclosure drive cabling schemes” on page 63 for specific cabling instructions.

58 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Controller A

Controller B

Left ESM

Right ESM

ds470043

Figure 39. One DS4200 Express and one storage expansion enclosure — Recommended cabling

One DS4200 Express and two storage expansion enclosures

If you are cabling one DS4200 Express Storage Subsystem and two storage expansion enclosures, connect one storage expansion enclosure per controller drive port as shown in Figure 40 on page 60. Figure 41 on page 60 shows that you can also connect two expansion enclosures together behind a single controller drive port. Although this is technically correct, use the topology as shown in Figure 40 on page 60.

As Figure 40 on page 60 shows, when you connect additional storage expansion enclosures, you can connect them by continuing the connection from the existing redundant drive channel pair.

Chapter 3. Cabling the storage subsystem 59

Controller A

Controller B

Left ESM

Right ESM

ds470044

Figure 40. One DS4200 Express and two storage expansion enclosure — Not recommended cabling

As Figure 41 shows, when you connect additional storage expansion enclosures, you can connect them by using the additional port of the drive channel.

Controller A

Controller B

Left ESM

Right ESM

ds470045

Figure 41. One DS4200 Express and two storage expansion enclosure — Recommended cabling

60 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

One DS4200 Express and three storage expansion enclosures

If you are cabling one DS4200 Express Storage Subsystem and three storage expansion enclosures, Figure 42 shows the recommended cabling topology.

Controller A

Controller B

Left ESM

Right ESM

Left ESM

Right ESM

ds470049

Figure 42. One DS4200 Express and three storage expansion enclosure — Recommended cabling

One DS4200 Express and four storage expansion enclosures

If you are cabling one DS4200 Express Storage Subsystem and four storage expansion enclosures, Figure 43 shows the recommended cabling topology.

Controller B

Left ESM

Right ESM

Left ESM

Controller A

Right ESM

Left ESM

Right ESM

Left ESM

Right ESM

ds470050

Figure 43. One DS4200 Express and four storage expansion enclosure — Recommended cabling

One DS4200 Express and up to six storage expansion enclosures

If you are cabling one DS4200 Express Storage Subsystem and up to six storage expansion enclosures, Figure 44 on page 62 shows the recommended cabling topology.

Chapter 3. Cabling the storage subsystem 61

Controller A

Controller B

Left ESM

Right ESM

Left ESM

Right ESM

ds470051

Right ESM

ds470051

Figure 44. One DS4200 Express and up to six storage expansion enclosure — Recommended cabling

Figure 45 on page 63 shows a cabling topology that is not recommended because all six storage expansion enclosures are connected to a single drive port of the dual-ported drive channel in each controller.

62 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Controller A

Controller B

Left ESM

Right ESM

ds470051

Right ESM

ds470058

Figure 45. One DS4200 Express and up to six storage expansion enclosure — Not recommended

DS4200 Express Storage Subsystem and supported storage expansion enclosure drive cabling schemes

The following sections show cabling schemes for supported storage expansion enclosures and the DS4200 Express Storage Subsystem:

v “One DS4200 Express and one EXP420 storage expansion enclosure” on page

v “One DS4200 Express and two EXP420 storage expansion enclosures” on page

v “One DS4200 Express and three or more EXP420 storage expansion enclosures”

on page 65

Notes:

1. Currently, only EXP420 storage expansion enclosures are supported in a

2. The DS4200 Express Storage Subsystem supports the connection of a

DS4200 Express Storage Subsystem configuration.

maximum of six storage expansion enclosures per redundant drive channel loop and supports one redundant drive channel loop pair.

Chapter 3. Cabling the storage subsystem 63

3. The DS4200 Express currently supports a maximum of 112 drives in six

16-drive storage expansion enclosures per drive channel in each controller, including the 16 E-DDMs in the DS4200 Express internal drive slots. One drive channel from each of controllers A and B must be connected to the same set of storage expansion enclosures to provide drive channel redundancy. Do not connect a combination of more than six storage expansion enclosures to the two ports of a single drive channel.

4. When connecting six storage expansion enclosures to a DS4200 Express, use

all ports in both drive channels. See Figure 44 on page 62 for the recommended cabling topology.

5. Connect a maximum of four EXP420s per DS4200 Express controller drive port.

One DS4200 Express and one EXP420 storage expansion enclosure

Figure 46 shows the recommended cabling scheme for one DS4200 Express Storage Subsystem and one EXP420 storage expansion enclosure.

ds470033

Figure 46. One DS4200 Express and one EXP420 storage expansion enclosure — Recommended cabling

Perform the following steps to create the recommended cabling scheme shown in Figure 46:

1. Connect either port 2 or port 1 of the dual-ported drive channel 1 in controller A

on the DS4200 Express to port 1B (1) on the left ESM of the EXP420.

2. Connect either port 1 or port 2 of the dual-ported drive channel 2 in controller B

on the DS4200 Express to port 1B (1) on the right ESM of the EXP420.

One DS4200 Express and two EXP420 storage expansion enclosures

Figure 47 on page 65 shows the cabling scheme for one DS4200 Express Storage Subsystem and two EXP420 storage expansion enclosures behind both ports of a dual-ported drive channel.

64 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

ds470038

Figure 47. One DS4200 Express and two EXP420 storage expansion enclosures behind a pair of DS4200 Express drive ports

Perform the following steps to create the recommended cabling scheme shown in Figure 47:

1. Connect port 2 of drive channel 1 on the DS4200 Express to port 1B (1) on the left ESM in the first EXP420 (2).

2. Connect port 1B (1) on the right ESM in the first EXP420 (2) to port 1 of drive channel 2 on the DS4200 Express.

3. Connect port 1 of drive channel 1 on the DS4200 Express to port 1B (1) on the left ESM in the second EXP420 (3).

4. Connect port 1B (1) on the right ESM in the second EXP420 (3) to port 2 of drive channel 2 on the DS4200 Express.

One DS4200 Express and three or more EXP420 storage expansion enclosures

To connect three or more storage expansion enclosures to a DS4200 Express Storage Subsystem, alternately connect a storage expansion enclosure to one of the drive ports of the dual-ported drive channel then connect to the other port until all of the storage expansion enclosures are attached. Figure 48 on page 66 shows the cabling scheme for one DS4200 Express Storage Subsystem and three EXP420 storage expansion enclosures behind both ports of a dual-ported drive channel.

Chapter 3. Cabling the storage subsystem 65

ds470055

Figure 48. One DS4200 Express and three EXP420 storage expansion enclosures behind a pair of DS4200 Express drive ports

Perform the following steps to create the recommended cabling scheme shown in Figure 48:

1. Connect port 1A on the left ESM in the first EXP420 (2) to port 1B (1) on the left ESM in the third EXP420 (4).

2. Connect port 1A on the right ESM in the third EXP420 (4) to port 1B (1) on the right ESM in the first EXP420 (2).

3. Connect port 1B (1) on the left ESM in the first EXP420 (2) to port 2 of drive channel 1 on the DS4200 Express.

4. Connect port 1 of drive channel 2 on the DS4200 Express to port 1B (1) on the right ESM in the third EXP420 (4).

5. Connect port 1B (1) on the left ESM in the second EXP420 (3) to port 1 of drive channel 1 on the DS4200 Express.

6. Connect port 1B (1) on the right ESM in the second EXP420 (3) to port 2 of drive channel 2 on the DS4200 Express.

49 on page 67 shows the recommended cabling scheme for one DS4200

Figure Express Storage Subsystem and four EXP420 storage expansion enclosures behind both ports of a dual-ported drive channel.

66 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

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Figure 49. One DS4200 Express and four EXP420 storage expansion enclosures behind a pair of DS4200 Express drive ports

Perform the following steps to create the recommended cabling scheme shown in Figure 49:

1. Connect port 1A on the left ESM in the first EXP420 (2) to port 1B (1) on the left ESM in the third EXP420 (4).

2. Connect port 1A on the right ESM in the third EXP420 (4) to port 1B (1) on the right ESM in the first EXP420 (2).

3. Connect port 1B (1) on the left ESM in the first EXP420 (2) to port 2 of drive channel 1 on the DS4200 Express.

4. Connect port 1 of drive channel 2 on the DS4200 Express to port 1B (1) on the right ESM in the third EXP420 (4).

5. Connect port 1A on the left ESM in the second EXP420 (3) to port 1B (1) on the left ESM in the fourth EXP420 (5).

6. Connect port 1A on the right ESM in the fourth EXP420 (5) to port 1B (1) on the right ESM in the second EXP420 (3).

7. Connect port 1B (1) on the left ESM in the second EXP420 (3) to port 1 of drive channel 1 on the DS4200 Express.

8. Connect port 2 of drive channel 2 on the DS4200 Express to port 1B (1) on the right ESM in the fourth EXP420 (5).

50 on page 68 shows the recommended cabling scheme for one DS4200

Figure Express Storage Subsystem and a maximum of six EXP420 storage expansion enclosures behind both ports of a dual-ported drive channel.

Chapter 3. Cabling the storage subsystem 67

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Figure 50. One DS4200 Express and a maximum of six EXP420 storage expansion enclosures behind a pair of DS4200 Express drive ports

Perform the following steps to create the recommended cabling scheme shown in Figure 50:

1. Connect port 1A on the left ESM in the first EXP420 (2) to port 1B (1) on the left ESM in the third EXP420 (4).

2. Connect port 1A on the right ESM in the third EXP420 (4) to port 1B (1) on the right ESM in the first EXP420 (2).

3. Connect port 1B (1) on the left ESM in the first EXP420 (2) to port 2 of drive channel 1 on the DS4200 Express.

4. Connect port 1A on the left ESM in the third EXP420 (4) to port 1B (1) on the left ESM in the fifth EXP420 (6).

5. Connect port 1A on the right ESM in the fifth EXP420 (6) to port 1B (1) on the right ESM in the third EXP420 (4).

6. Connect port 1 of drive channel 2 on the DS4200 Express to port 1B (1) on the right ESM in the fifth EXP420 (6).

7. Connect port 1A on the left ESM in the second EXP420 (3) to port 1B (1) on the left ESM in the fourth EXP420 (5).

8. Connect port 1A on the right ESM in the fourth EXP420 (5) to port 1B on the right ESM in the second EXP420 (3).

9. Connect port 1B (1) on the left ESM in the second EXP420 (3) to port 1 of drive channel 1 on the DS4200 Express.

10. Connect port 1A on the left ESM in the fourth EXP420 (5) to port 1B (1) on the left ESM in the sixth EXP420 (7).

11. Connect port 1A on the right ESM in the sixth EXP420 (7) to port 1B on the right ESM in the fourth EXP420 (5).

68 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

12. Connect port 2 of drive channel 2 on the DS4200 Express to port 1B (1) on the right ESM in the sixth EXP420 (7).

Storage expansion enclosure settings

This section provides information about storage expansion enclosure settings. For additional detail, refer to the Installation, User’s, and Maintenance Guide for your storage expansion enclosure.

Fibre channel loop and ID settings

When you install a hard disk drive in the storage expansion enclosure, the drive tray plugs into a printed circuit board called the midplane. The midplane sets the fibre channel loop ID automatically, based on the enclosure ID switch setting and the physical location (bay) of the hard disk drive.

DS4000 storage expansion enclosure ID settings

Some DS4000 storage expansion enclosures, such as the EXP420, do not have an enclosure ID switch because the controller and storage expansion enclosure ESMs automatically set the enclosure ID number. Other DS4000 storage expansion enclosures, such as the EXP100, have an enclosure ID switch that is used to identify the DS4000 storage expansion enclosure on a fibre channel loop. The enclosure ID switch is located on the back of the unit.

Note: The initial release of the DS4200 Express supports the EXP420 storage

expansion enclosure only. The enclosure ID on the EXP420 is automatically set by the controller and ESMs so you do not have to manually set it.

Connecting secondary interface cables

This section is applicable to (direct) out-of-band management configurations only. If your configuration uses host-agent (in-band) management, skip this section.

Use the Ethernet interface ports on the back of the storage subsystem to connect the controllers for direct management of the storage subsystems (see “Direct (out-of-band) management method” on page 71).

Important:

1. The serial interface ports are intended to be used by service technicians to

perform diagnostic operations on the storage subsystem. Incorrect use of the serial port can result in loss of data access and, in some cases, in loss of data. Do not make connections to the serial port unless you do so under the direct supervision and guidance of IBM support personnel. The serial port connection requires a special PS2 DIN to DB9 male converter. (IBM Service and support personnel, see Serial cable adapter (RoHS) in “Parts listing” on page 140 for FRU P/N.)

2. To minimize security risks, do not connect the DS4200 Express in a public LAN

or public subnet. Use a local private network for the DS4200 Express and the management station Ethernet ports.

3. To ensure proper EMI shielding, always use quality braided and shielded serial

cables.

Connect a pair of Ethernet cables from the storage-management station to the Ethernet ports for controller A (located on the top) and controller B (located on the bottom) on the back of the storage subsystem. Figure 51 on page 70 shows the location of the ports on the DS4200 Express Storage Subsystem. Only one

Chapter 3. Cabling the storage subsystem 69

Ethernet port connection from each controller is required to establish a direct (out-of-band) management connection to the DS4200 Express Storage Subsystem.

Note: The alignment of the Ethernet and serial ports on controller A are opposite

those of controller B. Before inserting an Ethernet or serial cable, verify that the cable connection is rotated correctly to match the alignment of the port on the RAID controller. Do not force-fit.

Figure 51. Ethernet and serial port locations on the DS4200 Express

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Table 17. DS4200 Express Storage Subsystem location of host ports on controllers

Number Description

1 Ethernet ports

Note: Ethernet ports on the left controller are

labeled 2 and 1. On the right controller, they are labeled 1 and 2.

2 Serial port

Configuring the storage subsystem

You must configure the storage subsystem configuration after you install the storage subsystem in a rack cabinet. Use the information in the following sections to configure your storage subsystem configuration.

Storage subsystem management methods

Before you configure the storage subsystem, determine which method of storage subsystem management you want to use. You can manage the storage subsystems in either of two ways: host-agent (in-band) management or direct (out-of-band) management.

For more information on setting up in-band or out-of-band management connections, refer to the DS4000 Storage Manager Installation and Support Guide for the operating system of the host computer that will be used to manage the DS4200 Express Storage Subsystem.

Important: If the operating system of the host server that the storage subsystem

logical drives are mapped to is not Microsoft Windows 2000 or Server 2003, then you have to make a direct (out-of-band) management connection to the storage subsystem to set the correct host type first. Then, the server will be able to recognize the storage subsystem correctly for host-agent (in-band) management.

70 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Host-agent (in-band) management method

This method requires host-agent software that you install on the host server. The host-agent software allows the DS4000 Storage Manager client program to manage the DS4000 Storage Subsystem using the same fibre channel connections between the host server and the storage subsystem. You must install at least one management station and a software agent host. The management station can be the host or a workstation on the Ethernet network. A management station will have the client software installed. Figure 52 shows the host-agent (in-band) management method.

Figure 52. Host-agent (in-band) managed storage subsystems

Direct (out-of-band) management method

This method uses Ethernet connections from a management station to each controller. You must install at least one management station. The management station can be the host or a workstation on the Ethernet network. A management station will have the client software installed. Attach Ethernet cables to each management station (one pair per storage subsystem). You will connect the cables to each storage subsystem controller later when you install the storage subsystem. Figure 53 on page 72 shows the direct (out-of-band) management method.

You can either use the default controller Ethernet IP addresses for out-of-band connection or change the default controller Ethernet IP addresses by using Dynamic Host Configuration Protocol (DHCP) or Storage Manager client. Refer to the DS4000 Storage Manager Installation, User's and Maintenance Guide for the appropriate operating system for more information on setting the management connections and installing the DS4200 Express Storage Subsystem management software.

For a listing of default IP addresses, see “Connectors, switch, and enclosure ID” on page 8.

Chapter 3. Cabling the storage subsystem 71

Note: Do not connect the DS4200 Express Storage Subsystem Ethernet ports to a

public network or public subnet. It is strongly recommended that you create a private network between the DS4200 Express Storage Subsystem and the management station.

Figure 53. Direct (out-of-band) managed storage subsystems

Connecting hosts to the DS4200 Express

The DS4200 Express supports redundant direct attached connections up to two hosts. To ensure full protection against the loss of any one fibre channel path from the host servers to the DS4200 Express Storage Subsystem, always use redundant host connections by connecting each host to the appropriate single-ported host channels on both RAID controllers A and B. Using the fibre channel switches, up to 128 hosts can be redundantly attached to the DS4200 Express Storage Subsystem in a fibre channel SAN fabric.

To connect a host adapter to the DS4200 Express RAID controllers, perform the following steps:

1. Install SFP modules in host ports on RAID controllers A and B.

The alignment of the single-ported host channels on controller A are

Note:

opposite those of controller B. Before inserting an SFP module into a host port, verify that the SFP module is rotated correctly to match the alignment of the host port on the RAID controller. Do not force-fit.

72 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

2. Connect the fibre channel cables from the SFP modules in the DS4200 Express

RAID controller host ports to either the SFP modules in the fibre channel switch or the SFP modules of the host bus adapters. Figure 54 shows the location on the RAID controllers on the DS4200 Express Storage Subsystem where the host-system cables connect.

Figure 54. Location of host cables on RAID controllers on the DS4200 Express

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Table 18. DS4200 Express Storage Subsystem location of host ports on controllers

Number Description

1 Controller A 2 Controller B 3 Host Ports

3. Repeat steps 1 on page 72 and 2 for each additional redundant host

connection. You can create a maximum of two redundant host connections for the DS4200 Express Storage Subsystem, as shown in Figure 55 on page 74.

Figure 55 on page 74 shows a connection to a fibre channel host bus

Note:

adapter in the DS4200 Express Storage Subsystem. You can also connect to fibre channel switch ports (not shown).

Chapter 3. Cabling the storage subsystem 73

Host 1, Host Adapter 1 and 2

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Figure 55. Cabling diagram for two redundant host connections

For examples of redundant, partially-redundant, and non-redundant host and drive loop configurations, see “Fibre channel host loop configurations.”

Fibre channel connections

The storage subsystem fibre channel connection consists of two host fibre-channel loops and a redundant drive fibre-channel loop. The host fibre-channel loops provide the fibre path for host attachment. They can consist of fibre-channel cables, SFPs, host bus adapters, fibre-channel switches, and RAID controllers. The redundant drive fibre-channel loop provides the fibre path from the DS4200 Express Storage Subsystem to the hard disk drives (HDDs) in the storage expansion enclosures. The redundant drive fibre-channel loop consists of the DS4200 Express Storage Subsystem, the storage expansion enclosures, fibre-channel cables, and SFPs.

The DS4200 Express supports redundant drive channel loop configurations. You can build a redundant drive channel loop by connecting one or more storage expansion enclosures to the redundant RAID controllers. Then, use dual fiber-optic cables to connect one storage expansion enclosure to another in a daisy-chain. For more information, see “Connecting storage expansion enclosures to the DS4200 Express” on page 54.

Host 2, Host Adapter 1 and 2

Fibre channel host loop configurations

You must determine how the host systems will connect to the storage subsystem. You can connect up to two host systems directly to the storage subsystem, or you can connect more than two hosts to the fibre channel storage subsystem through switches. The illustrations in the following sections show common host system configurations.

74 IBM System Storage DS4200 Express Storage Subsystem: Installation, User’s and Maintenance Guide

IBM DS4200 Installation, User's, And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Figures

Tables

Safety

About this document

Who should read this document

How this document is organized

DS4000 Storage Subsystem installation tasks - General overview

Getting information, help, and service

Before you call

Using the documentation

Web sites

Software service and support

Hardware service and support

Fire suppression systems

How to send your comments

Chapter 1. Introduction

Overview

Models

Operating system support

Fibre channel defined

SATA defined

Inventory checklist

Product updates

Best practices guidelines

Storage subsystem components

Enhanced Value Disk Drive Modules (EV-DDMs)

Controllers

Connectors, switch, and enclosure ID

Power supply and fan units

Battery units

SFP modules

Software and hardware compatibility and upgrades

Software and firmware support code upgrades

DS4200 Express hardware and software compatibility

Determining firmware levels

Specifications

Area requirements

Dimensions

Weight

Shipping dimensions

Environmental requirements and specifications

Temperature and humidity

Altitude

Airflow and heat dissipation

Acoustic noise

Electrical requirements

Site wiring and power

AC power recovery

Power cords and receptacles

Heat output, airflow, and cooling

Chapter 2. Installing the storage subsystem

Installation overview

Handling static-sensitive devices

Preparing for installation

Tools and hardware required

Preparing the site

Preparing the rack cabinet

Installing the support rails

Installing the DS4200 Express

Removing the CRUs

Removing a controller

Removing a power supply and fan unit

Removing an EV-DDM

Installing the DS4200 Express into a rack on the support rails

Replacing the components

Replacing a controller

Replacing a power supply and fan unit

Replacing an EV-DDM

Chapter 3. Cabling the storage subsystem

Enclosure ID settings

Fibre-channel loop and ID settings

Working with SFPs and fiber-optic cables

Handling fiber-optic cables

Installing SFP modules

Removing SFP modules