StorCase Technology Fibre-to-SCSI User Manual

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StorCase

Technology

InfoSt ation

RAID Controller Module

(P/N S10C100)

Fibre Channel-to-Ultra160 RAID Controller Module

User's Guide

StorCase® Technology

InfoStation

RAID Controller Module

(P/N S10C100)

Fibre Channel-to-Ultra160

RAID

User's Guide

Part No. D89-0000-0131 A01 January 2003

StorCase Technology, Inc.

17600 Newhope Street

Phone (714) 438-1850 Fax (714) 438-1847

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

Fountain Valley, CA 92708-9885

LIMITED WARRANTY

STORCASE TECHNOLOGY, Incorporated (StorCase) warrants that its products will be free from defects in material and workmanship, subject to the conditions and limitations set forth below. StorCase will, at its option, either repair or replace any part of its product that proves defective by reason of improper workmanship or materials. Repair parts or replacement products will be provided by StorCase on an exchange basis, and will be either new or reconditioned to be functionally equivalent to new.

This warranty does not cover any product damage that results from accident, abuse, misuse, natural or personal disaster, external power surge or failure, or any unauthorized disassembly, repair or modification. StorCase will not be responsible for any software, firmware or other customer data stored within, or interfacing with a StorCase product.

Duration of Warranty

Seven-Year Warranty: The following StorCase products are covered by this warranty for

a period of seven (7) years from the original date of purchase from StorCase or its authorized reseller: all Data Express® removable device enclosures and all StorCase interface cables and accessories specifically intended for use with these products. Data Silo®, Data Stacker® and InfoStation® products are covered by this warranty for a period of seven (7) years, excepting the RAID controller, power supply, fan and blower components, which are covered by the three-year warranty described below.

Three-Year Warranty: The following StorCase products are covered by this warranty for a period of three (3) years from the original date of purchase from StorCase or its authorized reseller: all Rhino®JR external expansion chassis and all RAID controller modules. In addition, the following components of the Data Silo®, Data Stacker®, InfoStation® products are subject to warranty for a period of three (3) years: all power supplies, fans and blowers.

Warranty Claim Requirements

To obtain warranty service, the defective product must be returned to your local authorized StorCase dealer or distributor, or, with prior StorCase approval, to the StorCase factory service center.

For defective products returned directly to StorCase, a Return Material Authorization (RMA) number must be obtained by calling StorCase Customer Service at (714) 445-3455. The RMA number must be prominently displayed on the outside of the return package. Shipments must be freight-prepaid and insured, and must include the product serial number, a detailed description of the problem experienced, and proof of the original retail purchase date. Products must be properly packaged to prevent damage in transit. Damage resulting from improper packaging will not be covered by this warranty. The StorCase factory service center is located at 17650 Newhope Street, Receiving Dock, Gate #4, Fountain Valley, CA 92780, U.S.A.

StorCase Technology, Inc. S10C100 User's Guide - Rev. A01

Free Technical Support

StorCase provides free technical support. If you experience any difficulty during the installation or subsequent use of a StorCase product, please contact StorCases Technical Support Department prior to servicing your system. This warranty covers only repair or replacement of defective StorCase products, as described above. StorCase is not liable for, and does not cover under warranty, any costs associated with servicing and/or installation of StorCase products.

StorCase Technical Support can be reached in the U.S. at (714) 438-1858 or toll-free at (888) 435-5460 (U.S. and Canada only). StorCase European Technical Support can be reached in the U.K. at +44 (0) 1932 738900.

Disclaimers

The foregoing is the complete warranty for the products identified above and supersedes all other warranties and representations, whether oral or written. StorCase expressly disclaims all warranties for the identified products, which are not stated herein, including, to the extent permitted by applicable law, any implied warranty of merchantability or fitness for a particular purpose. In no event will StorCase be liable to the purchaser, or to any user of a StorCase product, for any damages, expenses, lost revenues, lost savings, lost profits, or any other incidental or consequential damages arising from the purchase, use or inability to use a StorCase product, even if StorCase has been advised of the possibility

of such damages.

iii

Copyright © 2003 StorCase Technology. All rights reserved. All registered trademarks are the property of StorCase Technology. All other logos and trademarks are properties of their respective companies.

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

Declaration of Conformity

Company Name:

Corporate Office Address:

Manufacturing Address:

Product Name:

Model Number:

Conforms to the following standards:

EMC Directives: (89/336/EEC)

Safety Standards: CSA (NRTL/C)

TUV

StorCase Technology, Inc.

17600 Newhope Street Fountain Valley, CA 92708

InfoStation RAID Controller Module

S10C100

EN 50081-1: 1992 Generic Emission

- EN 55022/CISPR22 Class A

- EN 61000-3-2 - EN 61000-3-3 EN 55024: 1998 Generic Immunity

- EN 61000-4-2 - EN 61000-4-6

- EN 61000-4-3 - EN 61000-4-8

- EN 61000-4-4 - EN 61000-4-11

- EN 61000-4-5

CAN/CSA-C22.2 No. 950-93 UL 1950

EN 60950: 1988 EN 60950/A2: 1991 EN 60950/A1: 1990

EMI Standards:

EMC Standards:

Year of Manufacture:

Signature:___________________ Full name: Dieter Paul Position: President

StorCase Technology, Inc. S10C100 User's Guide - Rev. A01

FCC Part 15, Class A

AS/NZS 3548 Information Technology Equipment

2001

Federal Communications Commission (FCC) Statement

RADIO FREQUENCY INTERFERENCE STATEMENT

You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate that equipment.

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

Important Safety Instructions

1. Read all these instructions.

2. Save these instructions for later use.

3. Follow all warnings and instructions marked on the product.

4. Do not use this product near water.

5. This product should be operated from the type of power source indicated on the marking label. If you are not sure of the type of power available, consult your dealer or local power company.

6. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage points or other risk. Refer all servicing to service personnel.

Wichtige Sicherheitshinweise

1. Diese Hinweise sollten vollständig durchgelesen werden.

2. Diese Hinweise für einen späteren Gebrauch aufbewahren.

3. Allen auf dem Gerät angebrachten Warnungen und Hinweisen folgen.

4. Das Gerät nicht in der Nähe von Wasser verwenden.

5. Das Gerät nur mit dem Aufkleber bezeichneten Netzspannung betreiben. Bei Fragen über die Art der Netzspannung sollte der Händler oder das Energieversorgungsunternehmen zu rate gezogen werden.

6. Nicht versuchen das Produkt selbst zu reparieren. In allen Produkten existieren gefährliche elektrische Spannugen. Nicht das Gehäuse öffnen.

7. Wartungsarbeiten nur von qualifiziertern Kundendienstpersonal ausführen laßen.

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

Table of Contents

INTRODUCTION ..................................................................................................................... 1

Packaging Information .................................................................................................. 1

Serial Number ................................................................................................................ 1

General Description ...................................................................................................... 2

InfoStation RAID Module Panel............................................................................. 5

INSTALLATION ...................................................................................................................... 6

Installing the RAID Module into the InfoStation ............................................................ 6

RAID CHANNEL CONFIGURATIONS ..................................................................................... 6

Typical RAID Channel Configurations ......................................................................... 7

Fibre Channel Configurations ...................................................................................... 9

Typical FC-AL Configurations .............................................................................. 9

CONFIGURATION ................................................................................................................ 12

Configuration Overview ............................................................................................. 12

Starting the Disk Array Administrator Utility ..................................................... 12

Selecting Menu Options ..................................................................................... 16

Creating and Managing Arrays and Partitions .......................................................... 17

Creating Arrays .................................................................................................. 17

Creating a Single-Partition Array .................................................................. 18

Creating a Multiple-Partition Array ................................................................ 24

Managing Arrays ................................................................................................ 26

Viewing Array and Drive Status Information .............................................. 26

Viewing Array Status .............................................................................. 26

Viewing Drive Status ............................................................................... 29

Stopping the Array Initialization Process ..................................................... 30

Adding a Partition ............................................................................................... 31

Verifying an Array ............................................................................................. 34

Viewing Verification Status .......................................................................... 35

Stopping the Verification .............................................................................. 36

Reconstructing an Array ................................................................................... 36

Expanding Array Capacity (OCE) ...................................................................... 37

Viewing Expand Status ................................................................................ 40

Changing an Array Name ................................................................................... 40

Trusting an Array ............................................................................................... 41

Deleting an Array ............................................................................................... 42

Managing Partitions .................................................................................................... 43

Understanding Partitions .................................................................................... 43

Viewing Partition Status Information ................................................................. 45

Viewing Partition Status ............................................................................... 45

Viewing Partition Statistics........................................................................... 47

Resetting Partition Statistics ........................................................................ 50

Expanding a Partition .......................................................................................... 51

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Changing a Partition Name ................................................................................. 53

Changing a Partition LUN ................................................................................... 54

Working with LUN Zoning .................................................................................. 55

Viewing Known WWNs ................................................................................ 56

Creating Names (Aliases) for Server WWNs .............................................. 59

Configuring LUN Zoning ................................................................................ 61

Change All Partitions to Include All Hosts .................................................... 63

Deleting a Partition .............................................................................................. 64

Monitoring System Status .......................................................................................... 65

Displaying the Event Log ................................................................................... 65

Viewing the Most Recent Event ................................................................... 66

Viewing One Event at a Time ....................................................................... 66

Viewing a Whole Screen of Events ............................................................. 68

Capturing the Event Log File......................................................................... 69

Displaying Hardware and Configuration Information ....................................... 70

Displaying Overall Statistics .............................................................................. 73

Resetting Overall Statistics .......................................................................... 77

Managing Spares........................................................................................................ 78

Managing Dedicated Spares .............................................................................. 78

Adding a Dedicated Spare ............................................................................ 79

Deleting a Dedicated Spare .......................................................................... 80

Enabling Dynamic Spares .................................................................................. 80

Managing the Spare Pool ................................................................................... 82

Adding a Spare to the Spare Pool ................................................................ 83

Deleting a Spare from the Spare Pool .......................................................... 84

Displaying the Spare Pool ............................................................................. 85

Configuring the Controller .......................................................................................... 86

Rebooting the Controller .................................................................................... 87

Changing the Date and Time .............................................................................. 87

Configuring the Host Channels .......................................................................... 90

Understanding LUNs and Viewing LUN Information ........................................ 92

Viewing LUN Information .............................................................................. 93

Configuring the SCSI Channels .......................................................................... 94

Changing the Sampling Rate .............................................................................. 97

Changing the Alarm Mute Setting ...................................................................... 97

Locking the Cache Setting ................................................................................. 99

Configuring the Battery .................................................................................... 100

Enabling/Disabling the Battery .................................................................... 100

Changing the Battery Age and Disabling the Battery Life Monitor ........... 102

Changing the Utility Priority .............................................................................. 105

Rescanning All Channels ................................................................................. 106

Pausing I/O ........................................................................................................ 106

Restoring Default Settings ............................................................................... 108

Managing Disk Drives and Enclosures .................................................................... 109

Managing Disk Drives ....................................................................................... 109

Displaying Drive Information ....................................................................... 109

Displaying All Drives .............................................................................. 110

Viewing Drive Status ............................................................................. 111

Clearing Metadata from a Drive .................................................................. 113

Enabling/Disabling Write-back Cache......................................................... 114

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S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

viii

Displaying Disk Cache Status ......................................................................... 116

Enabling/Disabling SMART Changes .............................................................. 117

Blinking a Drive LED ......................................................................................... 118

Taking Down a Drive .................................................................................. 119

Testing a Drive ............................................................................................ 120

Managing the SAF-TE Board ........................................................................... 120

Changing the SEP LUN ................................................................................ 121

Changing the Additional SAF-TE Board Settings ...................................... 123

APPENDICES ...................................................................................................................... 126

Appendix A - Specifications/Dimensions ................................................................ 127

Appendix B - Array Basics...................................................................................... 129

Appendix C - Troubleshooting ................................................................................. 134

StorCase Technical Support ............................................................................ 134

Terminal Emulator and COM Port Problems ..................................................... 134

Array Problems ................................................................................................. 135

Device SCSI Channel Problems ....................................................................... 136

Problems During Boot-Up ................................................................................. 137

Controller Problems .......................................................................................... 139

Problems Navigating Through the Menu Options............................................ 140

Warning and Error Events ............................................................................... 140

Warnings .................................................................................................. 140

Errors ........................................................................................................ 142

Running the Diagnostic Menu .......................................................................... 142

Using the Utility Menu ....................................................................................... 143

Disk Detected Errors ........................................................................................ 143

Disk Channel Errors.......................................................................................... 145

Voltage and Temperature Errors and Warnings ............................................ 146

Appendix D - Administrator Utility Menu Tree ......................................................... 147

Reader's Comments.......................................................................................................... 149

StorCase Technology, Inc. S10C100 User's Guide - Rev. A01

List of Figures

Figure 1: InfoStation RAID Module ................................................................................. 3

Figure 2: RAID Module Panel ......................................................................................... 5

Figure 3A: Typical InfoStation RAID Module 2x4 Dual-Channel Configuration ............. 7

Figure 3B: Typical InfoStation RAID Module 2x4 Dual-Channel Configuration ............. 8

Figure 4A: Typical Single FC-AL Loop Connection to One InfoStation ......................... 9

Figure 4B: Typical Single FC-AL Loop Connection to One InfoStation ......................... 9

Figure 5A: Typical Dual FC-AL Loop Connections to One InfoStation ........................ 10

Figure 5B: Typical Single FC-AL Loop Connection to Two InfoStations ..................... 10

Figure 6A: Typical Single FC-AL Loop Connection to Two InfoStation (One Hub) .... 11

Figure 6B: Typical Dual FC-AL Loop Connections to Two InfoStations ..................... 11

Figure 7: InfoStation User Interface Module ............................................................... 12

Figure 8: Boot-Up Screen ............................................................................................ 15

Figure 9: Disk Array Administrator System Menu ...................................................... 16

Figure 10: Enter Array Name Screen ............................................................................ 18

Figure 11: Array LUN Screen ........................................................................................ 19

Figure 12: RAID Type Screen ........................................................................................ 20

Figure 13: Number of Drives Screen ............................................................................ 21

Figure 14: Select Drives Screen ................................................................................... 21

Figure 15: Chunk Size Screen ...................................................................................... 22

Figure 16: Select Array Screen .................................................................................... 27

Figure 17: Array Menu Screen ..................................................................................... 28

Figure 18: Array Status Screen .................................................................................... 28

Figure 19: Drive Status Screen ..................................................................................... 30

Figure 20: Select Free Partition Screen ........................................................................ 31

Figure 21: Partition Size Screen .................................................................................... 32

Figure 22: Partition Name Screen .................................................................................. 32

Figure 23: Partition LUN Screen .................................................................................... 33

Figure 24: Verify Menu Screen ..................................................................................... 34

Figure 25: Verify Status Screen ................................................................................... 35

Figure 26: Expand Function Screen .............................................................................. 38

Figure 27: Select Drives to Expand Screen ................................................................. 39

Figure 28: Array Set-up for Partitions Before Creating Partitions .............................. 43

Figure 29: Array after Creating One Partition .............................................................. 44

Figure 30: Array after Creating Five Partitions ............................................................ 44

Figure 31: Array (with Five Partitions) after Expansion .............................................. 45

Figure 32: Partition Menu Screen .................................................................................. 46

Figure 33: Partition Status Screen ................................................................................ 47

Figure 34: Partition Statistics Menu Screen .................................................................. 49

Figure 35: Partition Statistics Screen ............................................................................ 49

Figure 36: Expand Partition Screen ............................................................................... 52

Figure 37: Example of LUN Zoning ................................................................................ 55

Figure 38: Configuration Menu Screen ......................................................................... 56

Figure 39: General LUN Zoning Screen ....................................................................... 57

Figure 40: Manage Host Names Screen ....................................................................... 57

Figure 41: Display Host List Screen ............................................................................. 58

Figure 42: Add or Name Host Screen ........................................................................... 59

Figure 43: LUN Exclude/Include List Screen ................................................................ 62

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

Figure 44: Event Log Menu Screen ............................................................................... 67

Figure 45: Event Log Screen ......................................................................................... 67

Figure 46: Whole Screen of Events .............................................................................. 68

Figure 47: Utilities Menu Screen.................................................................................... 70

Figure 48: Hardware Information Screen ..................................................................... 71

Figure 49: HW Info Screen ............................................................................................ 71

Figure 50: CFG Info Screen ........................................................................................... 72

Figure 51: Overall Statistics Menu Screen ................................................................... 74

Figure 52: View Statistics Screen ................................................................................ 75

Figure 53: View R/W Histogram Screen ...................................................................... 76

Figure 54: Option Configuration Menu Screen ............................................................. 81

Figure 55: Dynamic Spare Configuration Screen ........................................................ 82

Figure 56: Pool Spare Menu Screen ............................................................................. 83

Figure 57: Select Drives Screen ................................................................................... 84

Figure 58: Set Date/Time Menu Screen ........................................................................ 88

Figure 59: Set Date Screen ........................................................................................... 88

Figure 60: Set Time Screen ........................................................................................... 89

Figure 61: LUN Information Screen ............................................................................... 93

Figure 62: Channel Configuration Screen .................................................................... 95

Figure 63: Bus Speed Screen ....................................................................................... 95

Figure 64: Disable Domain Validation Screen ............................................................... 96

Figure 65: Initiator ID Screen ......................................................................................... 96

Figure 66: Alarm Mute Screen ...................................................................................... 99

Figure 67: Cache Lock Screen ................................................................................... 100

Figure 68: Battery Screen ........................................................................................... 101

Figure 69: Flash Utility Screen .................................................................................... 103

Figure 70: Flash Utility Menu Screen .......................................................................... 103

Figure 71: Flash Battery Life Monitor Menu Screen .................................................. 104

Figure 72: Utility Priority Screen .................................................................................. 105

Figure 73: Bus Paused Screen ................................................................................... 107

Figure 74: Display Drives Screen ............................................................................... 111

Figure 75: Drive Status Screen ................................................................................... 112

Figure 76: Drive Utilities Menu ..................................................................................... 113

Figure 77: Disk Configuration Screen ......................................................................... 114

Figure 78: Write-Back Cache Screen ......................................................................... 115

Figure 79: Cache Status Screen ................................................................................. 116

Figure 80: SMART Screen ........................................................................................... 117

Figure 81: SEP Configuration Screen ......................................................................... 121

Figure 82: SEP LUNs Screen ....................................................................................... 122

Figure 83: SEP LUN Screen ......................................................................................... 122

Figure 84: Poll Rate Screen ......................................................................................... 124

Figure 85: Temperature Screen .................................................................................. 124

Figure 87: Slot Flags Screen ....................................................................................... 125

Figure 88: Global Flags Screen ................................................................................... 125

StorCase Technology, Inc. S10C100 User's Guide - Rev. A01

Figure A-1: S10C100 Physical Dimensions .................................................................. 128

Figure C-1: Typical Disk Detected Error ....................................................................... 143

Figure C-2: Typical Disk Channel Error ......................................................................... 145

Figure D-1: Administrator Utility Menu Tree .................................................................. 147

Figure D-2: Administrator Utility Menu Tree (cont'd) .................................................... 148

List of Tables

Table 1: Terminal Program Preferences .......................................................................... 14

Table 2: Terminal Program Communications Parameters ............................................... 14

Table 3: Selecting Menu Options ..................................................................................... 16

Table 4: Drive Requirements for each RAID Level ......................................................... 17

Table 5: OCE Drive Additons by RAID Level ................................................................... 37

Table 6: Host Channel Settings ........................................................................................ 90

Table 7: Alarm Thresholds and Procedures ................................................................... 98

Table B-1: RAID Level Comparisons ................................................................................. 132

Table C-1: POST Diagnostic Errors and Solutions............................................................ 138

Table C-2: Warning Events ................................................................................................ 141

Table C-3: Error Events ...................................................................................................... 142

Table C-4: Sense Key Codes and Descriptions ............................................................... 144

Table C-5: ASC/ASCQ Codes and Descriptions ............................................................... 144

Table C-6: Disk Channel Error Codes and Descriptions ................................................... 146

NOTICE: This User's Guide is subject to periodic updates without notice. While reasonable

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

efforts have been made to ensure the accuracy of this document, Storcase Technology, Inc. assumes no liability resulting from errors or omissions in this publication, or from the use of the information contained herein.

Please check the StorCase web site at http://www.storcase.com or contact your StorCase representative for the latest revision of this document.

Introduction 1

INTRODUCTION

PackagingInformation

The StorCase Technology InfoStation RAID Controller Module (P/N S10C100) is shipped in a container designed to provide protection and prevent damage during shipment. The RAID module was carefully inspected before and during the packing procedure at the factory. Evidence of any damage to the module should be reported to the shipper immediately.

If the wrong model has been received, please call your reseller or StorCase at (800) 435-0642 to arrange for a Return Material Authorization (RMA). StorCase cannot accept returns which do not display an RMA number on the outside of the package. Return the unit with all the original packing materials.

Before removing any component from its packaging, discharge any static electricity by touching a properly grounded metal object.

Serial Number

The module is labeled with a serial number. This number must be reported to the StorCase Customer Service Representative in order to receive a Return Material Authorization (RMA) for warranty claims. Locate the serial number label and record the number in the space provided below.

Serial Number:

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

2 Introduction

GeneralDescription

CAUTION: Remove ALL power from the InfoStation before installing the RAID Module.

NOTES: The installation, configuration, and use of the INFOSTATION RAID Control-

The StorCase Technology InfoStation RAID Module (P/N S10C100) 1-gigabit Fibre Channel- to-Ultra160 internal RAID controller is specifically designed for the InfoStation external expansion chassis. The S10C100 (Figure 1) is a stand-alone, dual Fibre host port controller with quad SCSI disk channels (supporting 2x4 configurations).

Product Features:

 Convenient, Plug-In Module  Dual 1 Gbit/sec Fibre Host, Quad SCSI Ultra160 (2x4) Configuration  Supports 1 Gbit/sec Fibre Channel Arbitrated Loop (FC-AL)  Supports Fibre Channel Switch-Fabric (FC-SW)  Supports Up to 30m Twin-ax Copper Cabling with HSSDC Connector  Supports Direct Connection to FC-AL with or without External FC Hub  Supports RAID Levels 0, 1, 0/1, 3, 4, 5, 10, 50 or JBOD  Supports up to 60 Devices; up to 24 Arrays; up to 32 LUNs  Supports LUN Zoning  Online Capacity Expansion (OCE) allows drives to be added during I/O activity  Data Transfer Rate of Over 18,000 IOPS  Downward Compatible with 80MB/sec LVD and Single-Ended Modes  128MB of PC133 Compatible SDRAM DIMM Cache Memory  NiMH Fast Charging Battery for Cache Back-up  OS-Independent

The RAID Module contains NO USER SERVICEABLE PARTS inside the unit. Warranty is VOID if module is opened. Refer ALL servicing to qualified personnel!

Danger of explosion if the RAID battery is incorrectly replaced! Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to manufacturer's instructions.

ler Module requires a high level of expertise and experience on the part of the user/integrator. Since there are many configuration options and variables (ie. host platforms, host bus adapters, applications, etc.), only general guidelines will be discussed in this User's Guide.

Refer to both the InfoStation User's Guide and Installation Guide for additional operating and installation information. Also refer to the disk manufacturer's documentation for specific information regarding the disks.

StorCase Technology, Inc. S10C100 User's Guide - Rev. A01

Introduction 3

This User's Guide describes the basic steps required to install the StorCase InfoStation RAID Module inside the InfoStation external expansion chassis. This guide supplements documentation provided with the InfoStation.

IFS_42fc

Figure 1: InfoStation RAID Controller Module

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

4 Introduction

INFOSTATION RAID Module Panel

(Figure 2)

 FC-AL/FC-SW Port A - HSSDC connectors (N+1 and N-1) provide a standard

interface for external FC devices. Connects to FC Host 0

 FC-AL/FC-SW Port B - HSSDC connectors (N+1 and N-1) provide a standard

interface for external FC devices. Connects to FC Host 1.

Bypass LED - Provides the following information:

ON (Green) = Indicates that FC port is bypassed (disconnected from the

OFF = Indicates that FC port is not bypassed

Error LED - Provides a visual indication of error conditions:

ON (Amber) = Indicates that there is an error detected from the external FC

OFF = Indicates that there are no errors

 Disk Channels 0-3 - Each channel supports up to fifteen (15) Ultra160 (downward

compatible to Ultra2) disks maximum (60 disks total).

 Diagnostic LED - Provides the following information:

ON = Indicates that RAID Controller Module PASSES diagnostic check OFF = Indicates that RAID Controller Module FAILS diagnostic check

 Cache Backup LED - Provides the following information:

ON = Indicates that data is in Cache Memory OFF = Indicates that data write to disk is complete

 RS-232 Serial Port (RAID Configuration Port) - Connects to a VT-100/ANSI terminal

via an RJ45-DB9 cable (provided). Refer to section "Configuration" for further information.

loop/switch)

host/device

StorCase Technology, Inc. S10C100 User's Guide - Rev. A01

Introduction 5

Disk Ch. 3 Disk Ch. 1

CACHE

Disk Ch. 2 Disk Ch. 0

Cache

Backup

LED

RS-232

Serial Port

Diagnostic

LED

RS-232

DIAGS

FC-AL/FC-SW

Port B

FC TO ULTRA160 RAID CONTROLLER MODULE

N+1 N+1N-1 N-1

Bypass

LED

Figure 2: RAID Module Panel

Error

LED

FC-AL/FC-SW

Port A

SCSI LVD/SE

IFS_41FC

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

6 Installation

INSTALLATION

CAUTION: Remove ALL power from the InfoStation before installing the RAID Module.

NOTES: The installation, configuration, and use of the InfoStation RAID Controller

The RAID Module contains NO USER SERVICEABLE PARTS inside the unit. Warranty is VOID if module is opened. Refer ALL servicing to qualified service personnel!

Module for the StorCase InfoStation chassis requires a high level of expertise and experience on the part of the user/integrator. Since there are many configuration options and variables (ie. host platforms, host bus adapters,applications, etc), only general guidelines will be discussed in this User's Guide.

Installing the RAID Module into the InfoStation

Please refer to the InfoStation Installation Guide for information regarding the installation of the RAID Module into the InfoStation.

RAID CHANNEL CONFIGURATIONS

NOTE: The installation, configuration, and use of the InfoStation RAID Controller

CAUTION: Offset VHDCI cable connectors must be used for proper fit. Failure to use

StorCase Technology, Inc. S10C100 User's Guide - Rev. A01

proper cables may result in damage to the I/O VHDCI connectors on the InfoStation I/O modules and RAID Module! RAID Controller "Kits" containing external I/O cables are available; contact StorCase for further ordering information.

Installation 7

Typical RAID Channel Configurations

NOTE: When using the optional InfoStation I/O repeater modules, StorCase recommends the

use of Port A-1 & A-2 when configuring typical RAID channels (as shown in Figure 3B). In the special cases where extra length cables are required (up to 12m maximum), use Port B instead.

Disk Ch. 2

Disk Ch. 3

(15 Disks x 4 channels = 60 Disks Total)

NOTE: Maximum 15 Disks per SCSI Channel

=Terminator

FC Host/Device 1

LoopBack or Cascade

Disk Ch. 0Disk Ch. 1

LoopBack or Cascade FC Host/Device 0

IFS_RAID27FC

Figure 3A: Typical InfoStation RAID Module 2x4 Dual-Channel Configuration

(InfoStation Chassis with Standard I/O Modules)

S10C100 User's Guide - Rev. A01 StorCase Technology, Inc.

8 Installation

Disk Ch. 3

Disk Ch. 2

(15 Disks x 4 channels = 60 Disks Total)

Disk Ch. 0Disk Ch. 1

NOTE: Maximum 15 Disks per SCSI Channel

IFS_RAID22FC

=Terminator

FC Host/Device 1

LoopBack or Cascade

LoopBack or Cascade FC Host/Device 0

Figure 3B: Typical InfoStation RAID Module 2x4 Dual-Channel Configuration

(InfoStation Chassis with Optional I/O Repeater Modules)

StorCase Technology, Inc. S10C100 User's Guide - Rev. A01

Installation 9

FIBRE CHANNEL CONFIGURATIONS

Typical FC-AL Configurations

InfoStation

Fibre Channel Arbitrated Loop

IFS_RAID20FC

FC-SCSI RAID Module

N+1 N-1 N-1N+1

Plug

Loop Back

Figure 4A: Typical Single FC-AL Loop Connection to One InfoStation

(No Hub)

Fibre Channel Arbitrated Loop

FC-SCSI RAID Module

Plug

Loop Back

N+1 N-1 N-1N+1

FC-AL Host #1

InfoStation

IFS_RAID21FC

Figure 4B: Typical Single FC-AL Loop Connection to One InfoStation

(No Hub)

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10 Installation

FC-AL Host #2

Fibre Channel Arbitrated Loop #2

InfoStation

FC-SCSI RAID Module

Plug

Loop Back

N+1 N-1 N-1N+1

Plug

Loop Back

Fibre Channel Arbitrated Loop #1

IFS_RAID23FC

Figure 5A: Typical Dual FC-AL Loop Connections to One InfoStation

(No Hub)

N+1 N-1 N+1 N-1

Plug

Loop Back

FC-AL Host #1

Fibre Channel Arbitrated Loop

N+1 N-1 N-1N+1

FC-SCSI RAID Module

FC-AL Host #1

InfoStation

IFS_RAID24FC

Figure 5B: Typical Single FC-AL Loop Connection to Two InfoStations

(No Hub)

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Installation 11

Fibre Channel Hub

Port #1Port #2Port #3Port #4Port #5Port #N

To other FC

devices

Plug

Loop Back

Plug

Loop Back

Plug

Loop Back

InfoStation #2

FC-SCSI RAID Module

N+1 N-1 N-1N+1

InfoStation #1

FC-SCSI RAID Module

N+1 N-1 N+1 N-1

IFS_RAID25FC

Figure 6A: Typical Single FC-AL Loop Connection to Two InfoStations

(One Hub)

FC-AL Host #2

Port #1

InfoStation #2

Fibre Channel Hub #2

FC-SCSI RAID Module

Plug

Loop Back

N+1 N-1 N-1N+1

Port #2Port #3

Plug

Loop Back

FC-SCSI RAID Module

InfoStation #1

Plug

Loop Back

N+1 N-1 N+1N-1

Port #2Port #3

Plug

Loop Back

Fibre Channel Hub #1

IFS_RAID26FC

FC-AL Host #1

Port #1

FC-AL Host #1

Figure 6B: Typical Dual FC-AL Loop Connections to Two InfoStations

(Two Hubs)

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12 Configuration

CONFIGURATION

Configuration Overview

To configure the RAID module, run the Disk Array Administrator Utility via a computer serial port (cable provided). This utility allows the user to:

 Create and manage arrays

 Monitor system status

 Manage spares

 Configure the controller

 Manage disk drives and enclosures

Starting the Disk Array Administrator Utility

NOTES: Microsoft® Windows® 3.x and Windows® NT 3.5x include a program called Terminal

which does not support ANSI color. If using either O/S, select VT-100 for terminal emulation or use a third-party software program such as Procomm for Windows.

Microsoft® Windows® 95/98/NT/2000 includes a program called HyperTerminal that supports ANSI color.

The Disk Array Administrator Utility is implemented with a VT-100 or ANSI terminal connected through the RS-232 serial port on the RAID Module (Figure 2). This utility is embedded in the firmware; software loading is not required unless for upgrade purposes.

The Disk Array Administrator Utility can also be implemented through the RS-232 serial port on the InfoStation User Interface Module (InfoStation Firmware Rev. 1.6 and higher), as shown in Figure 7. This is especially convenient in rack-mount environments where it may be difficult to access the InfoStation RAID Module directly.

RS-232

Serial Port

IFS_6a

Figure 7: InfoStation User Interface Module

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Configuration 13

To access the Disk Array Administrator Utility via the UI Module RS-232 serial port, the User must first configure the Serial Port Set-Up in the UI Module (see below).

Refer to the InfoStation User's Guide (specifically, sections "InfoStation User Interface" and "Serial Port Set-Up") for further information.

1. Press ENTER at the Default Display so that

2. Press DOWN until display = Setup.

3. Press ENTER until display = Alarm.

4. Press DOWN until display = Ser.Port

5. Press ENTER until display = S-Port0 (Factory

6. Press UP or DOWN to change the serial port option

7. Press ENTER to accept the change. The RAID

display = Status.

Default). This is the current serial port set-up.

to S-Port1.

Module can now be accessed via the UI Module serial port.

NOTE: Factory default is set to S.Port0.

S.Port0 = External Monitoring

S.Port1 = RAID Monitoring (Use this setting for accessing the RAID Module via the

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UIM Serial Port)

14 Configuration

To find HyperTerminal in Windows:

1. Click on Start (normally located at the bottom left of the Windows desktop)

2. Go to Programs

3. Go to Accessories

4. Go to HyperTerminal

Set the preferences as follows:

Table 1: Terminal Program Preferences

Setting

Terminal Emulation

Font

Translations

Columns

Set the communications parameters as follows:

Table 2: Terminal Program Communications Parameters

Setting

Baud Rate

Data Bits

Stop Bits

Parity

Flow Control

Connector

Value

VT-100 or ANSI

Terminal

None

Value

115,200

None

COM1

(typical)

IFS_46

IFS_47

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Configuration 15

Once the RAID Module is booted and the preferences have been set, a screen (Figure 8) will appear displaying the following information:

 Controller

 Configuration

 Array Information

 Time/Date

 Board Temperature

Figure 8: Boot-Up Screen

Press Enter to display the Disk Array Administrator System Menu Screen (Figure 9).

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16 Configuration

Figure 9: Disk Array Administrator System Menu Screen

Selecting Menu Options

NOTE: The Disk Array Administrator Utility has an Online Help option. Enabling this option

(Ctrl-H) after setting the terminal mode and color is highly recommended!

Use the following information to navigate through the Disk Array Administrator menu options:

Table 3: Selecting Menu Options

Menu Options

Exit

Move Up

Move Down

Select

Refresh

Toggle

(between ANSI or

VT-100 modes)

Color Toggle

Event Log

(HW info screen)

Enable Online Help

Press

Esc or or Ctrl-Z

Enter

Ctrl-R

Ctrl-A

Ctrl-B

Ctrl-E

Ctrl-H

IFS_48

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Configuration 17

Creating and Managing Arrays and Partitions

Using the Disk Array Administrator, the user can create and manage arrays and partitions. The following array-related functions can be performed:

 Create arrays

 Manage arrays

 Manage partitions

Creating Arrays

NOTE: Before creating more than one array, make sure that the host operating system

supports multiple LUNs. Most operating systems do, or have an option to enable multiple LUN support. If the host system does not support multiple LUNs, the host will only see one array at LUN 0.

An array can be created at anytime. Table 4 below describes the drive requirements for each RAID level.

Table 4: Drive Requirements for each RAID Level

RAID Level Min. # of Drives Max. # of Drives

50 6

Mirrored

Volume Set

2 11

IFS_56FC

Before an array is created, the user must decide whether or not to partition the array. There are two (2) ways to partition an array:

1. Single-partition array - an array that stores all data in a single partition and is ac-

cessed by a single LUN.

2. Multiple-partition array - an array that can have one or more partitions, with each

partition assigned its own LUN.

Refer to section "Understanding Partitions" for further information.

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18 Configuration

Creating a Single-Partition Array

This function allows the user to create single-partition arrays. Once a single-partition array has been created, more partitions can be added later. Single-partition arrays work well in environments that need one large, fault-tolerant storage space for data on one server.

To create a single-partition array:

1. Select Add an Array from the System Menu and press Enter.

The Enter Array Name screen should now display (Figure 10).

Figure 10: Enter Array Name Screen

2. Enter a name for the array and press Enter.

Up to 35 characters (any character, including spaces) can be used. If no name is to be used, just press Enter (a name may be added or changed later).

The system will now ask if you want to create one partition for the entire array.

3. Select Yes to create a single-partition array and press Enter (for creating multiple-

partition arrays, refer to section "Creating a Multiple-Partition Array" for further information).

The LUN screen should now display (Figure 11).

The LUN displayed is the suggested default LUN assignment.

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Configuration 19

Figure 11: Array LUN Screen

4. Select the LUN for the array and press Enter.

If the letters OV appear before a LUN, this indicates that the selection overlaps with a soft LUN, most likely the controller or SAF-TE Environmental Processor (SEP) LUN. An array at an overlapped LUN may be created, but it will not be seen by the host system until the controller is rebooted.

NOTE: Most UNIX, LINUX, and Macintosh operating systems require the controller LUN to

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be a higher value than all array LUNs. Before creating the first array, change the controller LUN to a higher value or choose NONE (best option) if not using CAPI to manage the arrays. This allows the first array to be seen at LUN 0.

The system will now warn you about the LUN for UNIX and Macintosh (see notes above), the first time an array is created. Press Enter and the system will ask if you want to be warned again. Select No to avoid receiving this warning again (otherwise, select Yes to be warned the next time an array is created).

The RAID Type screen should now display (Figure 12).

20 Configuration

Figure 11: Array LUN Screen

Figure 12: RAID Type Screen

5. Select the array type (RAID0, RAID3, RAID4, RAID5, RAID50, Volume, or Mirrored) and press Enter.

NOTE: A RAID 10 array is created when there are more than two (2) drives in a mirrored

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array.

If RAID 50 is selected as the RAID type, the Select RAID 50 Array Size screen displays all possible configurations for the array and drive combinations. Select the desired configuration and press Enter. Skip to Step 7.

For all other RAID types, the Number of Drives screen will display (Figure 13).

Configuration 21

Figure 13: Number of Drives Screen

6. Enter the number of drives (excluding spares) to be used in the array and press Enter.

The Select Drives screen should now display (Figure 14).

Figure 14: Select Drives Screen

7. Select the drives to be used for the array and press Enter.

A drive is selected by highlighting it and then pressing Enter. Each selected drive turns gray in the drive list. To skip a drive, use the é or ê key.

If the array is mirrored, RAID 3, RAID 4, RAID 5, or RAID 50 and there are one or more drives left, the Number of Spares screen will display.

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22 Configuration

8. If the Number of Spares screen displays, enter the number of spares to add and press Enter.

This creates dedicated spares that can only be used in this array. A dedicated spare drive will not be available for any other use (refer to section "Managing Spares" for further information).

If no spare is desired, simply enter 0.

The Select Drives screen should now display (Figure 14).

9. Select the drive to be used as a dedicated spare and press Enter.

NOTES: Only available drives (drives that aren't members of an array and are not assigned

as dedicated or pool spares) will be displayed. A drive is selected by highlighting it and then pressing Enter. Each selected drive turns gray in the drive list. To skip a drive, use the é or ê key.

A dedicated spare can be deleted from the array at any time (refer to section "Deleting a Dedicated Spare" for further information).

If the array created is RAID 3, RAID 4, RAID 5, or RAID 50, the Chunk Size screen will display (Figure 15).

Figure 15: Chunk Size Screen

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Configuration 23

10. Select the chunk size and press Enter.

The chunk size is the amount of contiguous data that is written to an array member before moving to the next member of the array. To determine the appropriate chunk size, refer to the operating system's documentation (for example, the default chunk size for Windows NT and many other operating systems is 64KB).

The system will now confirm your request to create the array.

11. Select Yes and press Enter.

A message will notify you that the array is being created and will show the progress of the initialization process. The array initialization process takes from several minutes to more than an hour depending on the array type (RAID 0, RAID 1, and Volume are the quickest), array size, drive speed, and other processes running the controller.

Press Esc to return to the Disk Array Administrator Utility and perform other functions. To check the progress of the array initialization, select Array Menu from the System Menu. The status of the initialization will display in the list of arrays.

The array initialization process can be stopped (refer to section "Stopping the Array Initialization Process" for further information).

NOTE: Most operating systems (such as Windows NT 4.0) require the host system to be

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rebooted to see the new array. NetWare v3.45 (and later) can recognize new devices by typing the command SCAN FOR NEW DEVICES at the console prompt. Other operating systems might have similar features.

24 Configuration

Creating a Multiple-Partition Array

This function allows the user to create multiple-partition arrays. Multiple-partition arrays work well with very large disk drives and make the most efficient use of disk space for fault tolerance (parity and spares). Refer to section "Understanding Partitions" for further information.

To create a multiple-partition array:

1. Select Add an Array from the System Menu and press Enter.

The Enter Array Name screen should now display (Figure 10).

2. Enter a name for the array and press Enter.

Up to 35 characters (any character, including spaces) can be used. If no name is to be used, just press Enter (a name may be added or changed later).

The system will now ask if you want to create one partition for the entire array.

3. Select No to create a multiple-partition array and press Enter.

The RAID Type screen should now display (Figure 12).

4. Select the array type (RAID0, RAID3, RAID4, RAID5, RAID50, VOLUME, or MIRRORED) and press Enter.

NOTE: A RAID 10 array is created when there are more than two drives in a mirrored array.

For all other RAID types, the Number of Drives screen will display (Figure 13).

5. Enter the number of drives (excluding spares) to be used in the array and press Enter.

The Select Drives screen should now display (Figure 14).

6. Select the drives to be used for the array and press Enter.

A drive is selected by highlighting it and then pressing Enter. Each selected drive turns gray in the drive list. To skip a drive, use the é or ê key.

If the array is mirrored, RAID 3, RAID 4, RAID 5, or RAID 50 and there are one or more drives left, the Number of Spares screen will display.

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Configuration 25

7. Enter the number of spares to be added and press Enter.

This creates dedicated spares that can only be used in this array. A dedicated spare drive will not be available for any other use (refer to section "Managing Spares" for further information).

If no spare is desired, simply enter 0.

The Select Drives screen should now display (Figure 14).

8. Select the drive to be used as a dedicated spare and press Enter.

NOTES: Only available drives (drives that aren't members of an array and are not assigned

9. Select the chunk size and press Enter.

10. Select Yes and press Enter.

A dedicated spare can be deleted from the array at any time (refer to section "Deleting a Dedicated Spare" for further information).

If the array created is RAID 3, RAID 4, RAID 5, or RAID 50, the Chunk Size screen will display (Figure 15).

The system will now confirm your request to create the array.

Press Esc to return to the Disk Array Administrator menus and perform other functions. To check the progress of the array initialization, select Array Menu from the System Menu. The status of the initialization will display in the list of arrays.

The array initialization process can be stopped (refer to section "Stopping the Array Initialization Process" for further information).

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26 Configuration

Managing Arrays

The Disk Array Administrator allows the management of arrays, including:

 View array and drive status

 Stop the initialization process

 Add a partition

 Verify an array

 Reconstruct an array

 Expand array capacity

 Change array name

 Change array ownership

 Trust array

 Delete array

Viewing Array and Drive Status Information

Array and drive status information is available in two (2) ways:

 View array status

 View drive status

Viewing Array Status

This function allows the user to view the status of an array, including:

 State - Online, Offline, Critical, or Fault-tolerant

 Serial Number - A unique number the controller assigns to each array.

 Name - The name given to the array.

 RAID Level - Array type (0, 3, 4, 5, 50, Volume, or Mirrored). The term "mirrored"

is used for both RAID 1 and RAID 10 arrays.

 Number of Drives - The number of drives in the array when fault-tolerant (for

example, if a three drive RAID 5 array was created and one drive is lost, the number will still show three drives).

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Configuration 27

 Number of Drives per Subarray - (for RAID 50 only) The number of drives in each

underlying RAID 5 array.

 Number of Spare Drives - The number of spare drives dedicated to the array.

 Size - The size of the entire array (expressed in MB or GB for arrays larger than

10GB).

 Chunk Size - The array's chunk size.

 Date Created - The date the array was created.

 Utility - The utility running (None, Verify, Reconstruct, Expand, or Initialize).

 Number or Partitions - The number of partitions created on the array.

 Free Partition Total - The amount of free space (no partition) on the array.

To view the status of an array:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

Figure 16: Select Array Screen

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28 Configuration

2. Select the array to be viewed and press Enter.

The Array Menu should now display (Figure 17).

Figure 17: Array Menu Screen

3. Select Array Status and press Enter.

The Array Status screen should now display, showing the status of the array selected (Figure 18).

Figure 18: Array Status Screen

4. Press Esc to return to the Array Menu.

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Configuration 29

Viewing Drive Status

This function allows the user to view the status of the drives in an array, including:

 Drive Number - The drive's sequential position in the controller's drive list.

 Drive Status - Indicates the condition of the drive (whether it is up or down).

 Channel Number - Back-end disk bus number.

 Target ID

 Size - Size of the drive in MB.

 Status - Indicates the array name and member number (if drive is part of an array).

If the drive is not part of an array, it will indicate status as "Available". If the drive was part of an array that no longer exists, it will indicate status as "Leftover".

NOTE: The drive may not be listed if it has failed or malfunctioned.

To view the status of an array:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the desired array and press Enter.

The Array Menu should now display (Figure 17).

3. Select Drive Status and press Enter.

The Drive Status screen should now display, showing all drives that are members of the array as well as those assigned as dedicated spares (Figure 19).

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30 Configuration

Figure 19: Drive Status Screen

Use the é or ê key to scroll through the drives. These are the drives that are currently members of the array.

4. Press Esc to return to the Array Menu.

Stopping the Array Initialization Process

This function allows the user to stop the initialization process during an array initialization.

After the process is stopped, the array is marked as offline and cannot be used. The drives will remain array members and the array must be deleted before the drives can be used again.

To stop the initialization process:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the array to be stopped and press Enter.

The Array Menu should now display (Figure 17).

3. Select Abort Initialization and press Enter.

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Configuration 31

The system will now confirm your request to stop the initialization process.

4. Select Yes and press Enter.

Adding a Partition

In order to create a multiple-partition array, at least one partition on the array must be created before the array can be used. Partitions on a multiple-partition array can be created as long as there is free space (refer to section "Understanding Partitions" for further information).

To add a partition:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the desired multiple-partition array and press Enter.

The Array Menu should now display (Figure 17).

3. Select Add a Partition and press Enter.

The Select Free Partition screen should now display, along with a list of free partitions (Figure 20).

A free partition is free space that has not yet been partitioned, or space that used to have a partition (before it was deleted).

Figure 20: Select Free Partition Screen

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32 Configuration

4. Select the free partition desired and press Enter.

The Partition Size screen should now display (Figure 21).

Figure 21: Partition Size Screen

5. Enter the desired partition size and press Enter.

The Partition Name screen should now display (Figure 22).

Figure 22: Partition Name Screen

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Configuration 33

6. Enter a name for the partition and press Enter.

Up to 35 characters (any character, including spaces) can be used. If no name is to be used, just press Enter (a name may be added or changed later).

The Partition LUN screen should now display (Figure 23).

Figure 23: Partition LUN Screen

7. Select the LUN for the partition and press Enter.

The LUN displayed is the suggested default LUN assignment.

NOTE: Most UNIX, LINUX, and Macintosh operating systems require the controller LUN to

8. Select Yes and press Enter.

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The system will now confirm the change.

34 Configuration

Verifying an Array

This function allows the user to verify data on a specified array (RAID 3, RAID 4, RAID 5, RAID 50, and Mirrored arrays only).

 RAID 3, RAID 4, RAID 5, and RAID 50 - Verifies all parity blocks in the selected array

and corrects any bad parity.

 Mirrored - Compares the primary and secondary drives. If a mismatch occurs, the

primary is copied to the secondary.

Verify an array whenever a problem is suspected.

To verify an array:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the array to verify and press Enter.

The Array Menu should now display (Figure 17).

3. Select Verify Function and press Enter.

The Verify Menu should now display (Figure 24).

Figure 24: Verify Menu Screen

4. Select Start Verify and press Enter.

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Configuration 35

Verification will begin and the percentage of verification will now be displayed. The array can be used during the verification process.

5. Press Esc to return to the Verify Menu.

Viewing Verification Status

This function allows the user to view the status of the verification process while it is running.

To view verification status:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the array to view and press Enter.

The Array Menu should now display (Figure 17).

3. Select Verify Function and press Enter.

The Verify Menu should now display (Figure 24).

4. Select View Verify Status and press Enter.

The Verify Status screen should now display (Figure 25).

Figure 25: Verify Status Screen

5. Press Esc to return to the Verification Menu.

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36 Configuration

Stopping the Verification

This function allows the user to stop the verification process. Normally, it is best to let the verification process finish, although stopping the verification does not cause any damage to the data.

To stop the verification process:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the desired array and press Enter.

The Array Menu should now display (Figure 17).

3. Select Verify Function and press Enter.

The Verify Menu should now display (Figure 24).

4. Select Abort Verify and press Enter.

The system will now confirm your request to stop the verification process.

5. Select Yes and press Enter.

Reconstructing an Array

The controller automatically reconstructs redundant arrays (RAID 3, RAID 4, RAID 5, RAID 50, and Mirrored) if an array becomes critical and if a spare drive (with enough space) is available. An array becomes critical when one or more member drives fail.

If a reconstruct does not start automatically, it is because there are no valid spares available. To start a reconstruct, replace the failed drive and add it as a spare (refer to sections "Adding a Dedicated Spare" and "Enabling Dynamic Spares" for further information).

NOTE: Any pool spares added may be used by any critical array, and not necessarily by

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the intended array.

Configuration 37

Expanding Array Capacity (OCE)

Online Capacity Expansion (OCE) allows the user to expand the arrays without having to stop I/O activity. Only one array can be expanded at a time, and the expansion of the array must be completed before expanding another array.

NOTES: Expanding an array does not change the size of the host operating system partitions

that reside on the array (the controller only works at the block level, not at the file system level of the operating system). To use the new space, a new partition must be created (using the newly added space) or a third-party application (specific to the operating system) must be used to change the partition size.

The OCE function may take an hour or more to complete, depending on the array type, array size, drive speed, and other processes running the controller.

Once an OCE has started, it cannot be aborted!

The number of drives that can be added to an array depends upon the RAID level.

Table 5: OCE Drive Additions by RAID Level

RAID Level # of Drives that can be Added

RAID 0

RAID 1

RAID 3, 4, or 5

RAID 10

RAID 50 3-5

Volume Set

1-4

Does not support OCE

1-4

2 or 4

Does not support OCE

IFS_55FC

To expand multiple-partition arrays, free space is added at the end of the array (refer to section "Understanding Partitions" for further information).

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38 Configuration

To expand an array:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the array to expand and press Enter.

The Array Menu should now display (Figure 17).

3. Select Expand Function and press Enter.

The Expand Menu should now display.

4. Select Start Expand and press Enter.

The Number of Drives screen should now display (Figure 26).

Figure 26: Expand Function Screen

5. Enter the number of drives to be added and press Enter.

The Select Drives screen should now display (Figure 27).

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Configuration 39

Figure 27: Select Drives to Expand Screen

6. Select the drives to be added (from the list of available drives) and press Enter.

Expansion will begin and the percentage of expansion will now display.

NOTE: Only available drives (drives that aren't members of an array and are not assigned

7. Press Esc to return to the Array Menu.

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40 Configuration

Viewing Expand Status

This function allows the user to view the status of the expansion process while it is running.

To view expand status:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the array to view and press Enter.

The Array Menu should now display (Figure 17).

3. Select Expand Function and press Enter.

The Expand Menu should now display.

4. Select View Expand Status and press Enter.

The Expand Status screen should now display.

5. Press Esc to return to the Expand Menu.

Changing an Array Name

This function allows the user to change the name of an array. This does not affect the target ID or LUN values of an array. The controller will not allow an array name to be changed while a utility is running.

To change an array name:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

2. Select the array to view and press Enter.

The Array Menu should now display (Figure 17).

3. Select Change Array Name and press Enter.

The Enter New Name screen should now display.

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Configuration 41

4. Enter a name for the array and press Enter.

Up to 35 characters (any character, including spaces) can be used.

The system will now confirm the change.

5. Select Yes and press Enter.

Trusting an Array

This function allows the user to bring an array back online by resynchronizing the time/date stamp and any other metadata on a bad disk. This will make the disk an active member of the array again. Use this function whenever:

 One or more disks of an array start up more slowly or were powered ON after the

rest of the disks in the array. This will cause the time/date stamps to differ, which the controller will interpret as a problem with the "late" disks. In such a case, the array will function normally after using the Trust Array function.

 An array is offline because a drive is failing, there is no data backup, and the user

is attempting to recover data from the array. In such a case, the Trust Array function may work but only as long as the failing drive continues to operate.

Before using this function, it must be enabled in the Option Configuration Menu (default setting is DISABLED).

CAUTION: The Trust Array function can cause unstable operation and data loss if

To trust an array:

1. Select Configuration Menu from the System Menu and press Enter.

The Configuration Menu should now display (Figure 38).

2. Select Option Configuration and press Enter.

The Option Configuration Menu should now display (Figure 54).

3. Select Enable Trust Array and press Enter.

The Enable Trust Array screen should now display.

4. Select Enable and press Enter.

NOTE: The Enable Trust Array option is only enabled until it is used. Once the Trust Array

option is used for an array, the option is automatically disabled.

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used improperly! This feature is intended for disaster recovery only!

42 Configuration

5. Press Esc twice to return to the System Menu.

6. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays (Figure

16).

7. Select the desired array and press Enter.

The Array Menu should now display (Figure 17).

8. Select Trust Array and press Enter.

The system will now confirm your request to trust the array.

9. Select Yes and press Enter.

NOTE: If the array does not come back online, it may be because there are too many members

offline. Or, it may be because the array may have additional failures on the bus (or enclosure) that the Trust Array option cannot fix.

Deleting an Array

This function allows the user to delete an array when the array is no longer needed or when the drives are needed for another use.

CAUTION: Deleting an array will delete all partitions and data stored in that array!

NOTE: An array cannot be deleted while any utility (Initialize, Verify, Expand, or Reconstruct)

is running on the array. The utility must be stopped (if possible) or completed before the array can be deleted.

To delete an array:

1. Select Delete an Array from the System Menu and press Enter.

The Select Array screen should now display (Figure 16).

2. Select the array to be deleted and press Enter.

The system will now confirm your request to delete the array.

3. Select Yes and press Enter.

Before reusing the drives, performing a low-level format on each drive is recommended.

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Configuration 43

Managing Partitions

The Disk Array Administrator software allows the user to manage partitions, including:

 View partition status information

 Add a partition

 Expand a partition

 Change a partition name

 Change a partition LUN

 Set up LUN zoning

 Delete a partition

Understanding Partitions

When an array is created, the array can either be all one partition or it can be set up with multiplepartitions. Using multiple-partitions, allows the user to create one very large array (making efficient use of the drives). For example, one very large RAID 5 array can be created with one dedicated spare assigned to the array. This minimizes the amount of disk space allocated to parity and spares (compared to the disk space required for 5-6 smaller RAID 5 arrays).

Once an array is set up for multiple-partitions, the user must create each partition by setting the partition size and assigning the partition a LUN. It is recommended that each partition be assigned a name that will indicate how each partition will be used (for example, if the first partition is used to store a customer database, name it "cust data base").

When a multiple-partition array is first created, all the space on the array is designated as free space (Figure 28).

Free Space

IFS_76

Figure 28: Array Set-up for Partitions Before Creating Partitions

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44 Configuration

When a partition is created, the user must specify the size (in MB) of the partition (Figure 29).

Partition 1

Free Space

IFS_77

Figure 29: Array after Creating One Partition

The Disk Array Administrator assigns each partition a unique serial number and sequence number. Sequence numbers are assigned in the order the partitions are created. Once one or more partitions are created on an array, additional partitions may be created in the remaining free space or a partition may be expanded (with some limitations).

A partition can only be expanded into contiguous, free space following the partition.

After all of the free space has been partitioned, the partition can only be expanded by deleting a partition that follows (the next highest in sequence) the partition to be expanded. In Figure 30, partition 3 can be deleted so that partition 2 can be expanded to use some or all of partition 3's space.

CAUTION: Deleting a partition also deletes all data stored in that partition! Be sure to

back up all data before deleting a partition!

Partition 1 Partition 2 Partition 3 Partition 4 Partition 5

IFS_78

Figure 30: Array after Creating Five Partitions

When expanding an array, free space is added at the end of the array as shown in Figure 31 (refer to section "Expanding Array Capacity" for further information).

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Configuration 45

Partition 1 Partition 2 Partition 3 Partition 4 Partition 5 Free Space

IFS_79

Figure 31: Array (with Five Partitions) after Expansion

After an array is expanded, the user can either add a partition or expand the last partition to utilize the free space. One or more partitions can also be deleted to expand the last partition.

Viewing Partition Status Information

The user can perform three functions related to partition status information:

 View Partition Status

 View Partition Statistics

 Reset Partition Statistics

Viewing Partition Status

This function allows the user to view the status the partition, including the following:

 Array State - Online, Offline, Critical, or Fault-tolerant

 Array Type - RAID level (0, 3, 4, 5, 50, Volume, or Mirrored). The term "mirrored"

is used for both RAID 1 and RAID 10 arrays.

 Array Drives - Number of drives in the array when fault-tolerant (for example, if

a three drive RAID 5 array was created and one drive is lost, the number will still show three drives).

 Name - The name of the partition.

 Serial Number - Target ID: LUN - Target ID and LUN presented to the host system.

 Partition Size - Size of the partition (in MB).

 Percentage of Total Array - The percentage of the total array that this partition

represents.

 Write-back Caching - Status of the write-back cache (enabled or disabled) for

this array.

 Zone Type - Type of LUN zoning set up.

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46 Configuration

To view the status of a partition:

1. Display the Partition Menu.

From the Array Menu From the All Partitions Menu

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays.

2. Select the desired array and press Enter.

The Array Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

1. Select Partitions Menu from the System Menu and press Enter.

The Select Partition or Free Area screen should now display, along with a list of existing partitions and free space.

2. Select the desired partition and press Enter.

The Partition Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

IFS_80

The Partition Menu should now display (Figure 32).

Figure 32: Partition Menu Screen

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Configuration 47

2. Select Partition Status and press Enter.

The Partition Status screen should now display (Figure 33).

3. Press Esc to return to the Partition Menu.

Figure 33: Partition Status Screen

Viewing Partition Statistics

This function allows the user to view the statistics of the partition, including the following:

 Read - Total number of host read requests directed to the partition

 Write - Total number of host write requests directed to the partition.

 SecRd - Total number of sectors read from the partition.

 SecWt - Total number of sectors written to the partition.

 Queue Depth - Current number of queued up commands from the host.

 I/O Size - Last host I/O block size request (in 512-byte sectors).

Similar statistics are also available on an aggregate basis for all partition LUNs (refer to section "Displaying Overall Statistics" for further information).

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48 Configuration

To view the statistics of a partition:

1. Display the Partition Menu.

From the Array Menu From the All Partitions Menu

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays.

2. Select the desired array and press Enter.

The Array Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

1. Select Partitions Menu from the System Menu and press Enter.

The Select Partition or Free Area screen should now display, along with a list of existing partitions and free space.

2. Select the desired partition and press Enter.

The Partition Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

IFS_80

The Partition Menu should now display (Figure 32).

2. Select Partition Statistics and press Enter.

The Partition Statistics Menu should now display (Figure 34).

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Configuration 49

Figure 34: Partition Statistics Menu Screen

3. Select View Statistics and press Enter.

The Partition Statistics screen should now display (Figure 35).

4. Press Esc to return to the Statistics Menu.

Figure 35: Partition Statistics Screen

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50 Configuration

Resetting Partition Statistics

This function allows the user to reset the following partition statistics to zero:

 Read

 Write

 SecRd

 SecWt

 I/O Size

NOTE: Resetting statistics also resets the statistics for this partition that are included in the

total overall statistics (refer to section "Displaying Overall Statistics" for further information).

The user may want to reset the statistics after monitoring performance, benchmark testing, or after a change in how the partition is used.

To reset partition statistics:

1. Display the Partition Menu.

From the Array Menu From the All Partitions Menu

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays.

2. Select the desired array and press Enter.

The Array Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

1. Select Partitions Menu from the System Menu and press Enter.

The Select Partition or Free Area screen should now display, along with a list of existing partitions and free space.

2. Select the desired partition and press Enter.

The Partition Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

IFS_80

The Partition Menu should now display (Figure 32).

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Configuration 51

2. Select Partition Statistics and press Enter.

The Partition Statistics Menu should now display (Figure 35).

3. Select Reset Statistics and press Enter.

The system will now confirm your request to reset the statistics.

4. Select Yes and press Enter.

Expanding a Partition

This function allows the user to expand an existing partition (with some limitations). A partition can only be expanded into contiguous, free space following the partition (refer to section "Understanding Partitions" for further information).

To expand a partition:

1. Display the Partition Menu.

From the Array Menu From the All Partitions Menu

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays.

2. Select the desired array and press Enter.

The Array Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

1. Select Partitions Menu from the System Menu and press Enter.

The Select Partition or Free Area screen should now display, along with a list of existing partitions and free space.

2. Select the desired partition and press Enter.

The Partition Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

IFS_80

The Partition Menu should now display (Figure 32).

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52 Configuration

2. Select Expand Partition and press Enter.

The Expand Partition screen should now display (Figure 36).

Figure 36: Expand Partition Screen

3. Enter the desired size and press Enter.

The system will now confirm your request to expand the partition.

4. Select Yes and press Enter.

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Configuration 53

Changing a Partition Name

This function allows the user to change the name of a partition. This does not affect the Target ID or LUN values of the partition. The controller does not allow the partition name to be changed while a utility is running.

To change a partition name:

1. Display the Partition Menu.

From the Array Menu From the All Partitions Menu

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays.

2. Select the desired array and press Enter.

The Array Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

1. Select Partitions Menu from the System Menu and press Enter.

The Select Partition or Free Area screen should now display, along with a list of existing partitions and free space.

2. Select the desired partition and press Enter.

The Partition Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

IFS_80

The Partition Menu should now display (Figure 32).

2. Select Change Partition Name and press Enter.

The Enter New Name screen should now display.

3. Enter the new name and press Enter.

Up to 35 characters (any character, including spaces) can be used.

The system will now confirm your request to change the partition name.

4. Select Yes and press Enter.

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54 Configuration

Changing a Partition LUN

This function allows the user to change the LUN assigned to a partition, as it appears under the controller's Target ID. The change is immediate, although the host system may need to be rebooted for the partition to reflect the new LUN (refer to section "Understanding LUNs and Viewing LUN Information" for further information).

NOTE: The partition LUN cannot be changed to a LUN that is already in use (the LUN must

be reassigned before it can be used).

To change a partition LUN:

1. Display the Partition Menu.

From the Array Menu From the All Partitions Menu

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays.

2. Select the desired array and press Enter.

The Array Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

1. Select Partitions Menu from the System Menu and press Enter.

The Select Partition or Free Area screen should now display, along with a list of existing partitions and free space.

2. Select the desired partition and press Enter.

The Partition Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

IFS_80

The Partition Menu should now display (Figure 32).

2. Select Change LUN and press Enter.

The New LUN screen should now display.

3. Enter the new LUN and press Enter.

The system will now confirm your request to change the partition LUN.

4. Select Yes and press Enter.

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Configuration 55

Working with LUN Zoning

The controller's LUN zoning capability allows the user to specify which servers (hosts) can access each partition. This gives the user complete control of array access based on specific needs.

Before setting up LUN zoning, the user should know the World Wide Name (WWN) for each server to be set up (the system SAN administrator should know the WWNs for the network). A list of the last 16 WWNs can be displayed by the controller. Each WWN can be given a name, making LUN zoning faster and easier to work with.

LUN zoning is set up by either excluding or including servers on a list for each partition LUN. The list can include or exclude up to 16 specific servers or all servers for each partition LUN.

ENGR

ACCT

Array A

Partition 1

accessed by Accounting

Partition 2

accessed by HR

IFS_81

Array C

Single-Partition Array

accessed by all Hosts

Array B

Partition 1

accessed by Engineering

Partition 2

accessed by HR and Accounting

Partition 3

accessed by all Hosts (except Web Server)

Figure 37: Example of LUN Zoning

For example, in Figure 37 above, Array A has two partitions. Partition 1 has an include list that contains only Accounting (meaning only Accounting can access Partition 1). Array B has three partitions; Partition 3 has an exclude list that contains only the Web Server (meaning all servers can access Partition 3, except the Web Server). Array C is a single-partition array and uses the default setting "Include All Hosts" (meaning all servers can access the array).

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56 Configuration

Viewing Known WWNs

This function allows the user to view a list of 16 server WWNs. The controller will be aware of any server that was booted since the controller was last restarted. Typically, servers will scan for devices during the device discovery process. During this process, the controller will save the WWN information for the server and retains the information even after the controller is rebooted. The list includes the last 16 servers (either booted or named).

The user can determine each server's WWN by booting one server at a time and then viewing the WWN list. The most recently booted server will be listed first. To make LUN zoning easier To make LUN zoning easier to manage, it is recommended that each server be given an easily recognizable name (alias).

To view known WWNs:

1. Select Configuration Menu from the System Menu and press Enter.

The Configuration Menu should now display (Figure 38).

Figure 38: Configuration Menu Screen

2. Select General LUN Zoning and press Enter.

The General LUN Zoning screen should now display (Figure 39).

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Configuration 57

Figure 39: General LUN Zoning Screen

3. Select Manage Host Names and press Enter.

The Manage Host Names screen should now display (Figure 40).

Figure 40: Manage Host Names Screen

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58 Configuration

4. Select Display Host List and press Enter.

The Display Host List screen should now display the last 16 WWNs known to the controller (Figure 41).

Figure 41: Display Host List Screen

The WWNs are listed according to the order in which they were booted (the most recently booted server is listed first).

NOTE: A host's WWN can be placed at the top of the known hosts list whenever the host

5. Press Esc to return to the Manage Host Names screen.

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performs a device discovery or bus scanning type of operation.

Configuration 59

Creating Names (Aliases) for Server WWNs

This function allows the user to give easily recognizable names (aliases) to the servers in the SAN to make LUN zoning easier to manage.

The user can determine each server's WWN by booting one server at a time and then viewing the WWN list. The most recently booted server will be listed first.

Up to 63 servers can be named, but only the last 16 (either booted or named) can be viewed. The names are stored on the controller, so the servers will have to be renamed whenever the controller changes.

To view known WWNs:

1. Select Configuration Menu from the System Menu and press Enter.

The Configuration Menu should now display (Figure 38).

2. Select General LUN Zoning and press Enter.

The General LUN Zoning screen should now display (Figure 39).

3. Select Manage Host Names and press Enter.

The Manage Host Names screen should now display (Figure 40).

4. Select Add or Name Host and press Enter.

The Add or Name Host screen will now display the last 16 known WWNs and host names (Figure 42).

Figure 42: Add or Name Host Screen

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60 Configuration

To change the name (alias), enter the new name in Step 5 (refer to section "Viewing Known WWNs" for further information).

If the controller is unaware of any WWNs, the list will be empty. Select Enter Host to enter a WWN.

NOTE: The controller will automatically attempt to assign a default name (alias) to a WWN

5. Select the WWN to be named and press Enter.

6. Enter the name (alias) and press Enter.

if one was not already user-assigned. The default name (if available) will be the name of the server's Host Bus Adapter's (HBA) manufacturer, enclosed in <> brackets (for example, a QLogic HBA will have a default name of <Qlogic>).

The Enter Host Name screen should now display.

Up to 16 characters (any combination of characters, including spaces) can be used.

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Configuration 61

Configuring LUN Zoning

Once the server aliases are set up, the user can then set up LUN zoning. This is where the user will determine which servers can access each partition LUN.

LUN zoning is set up by either including or excluding servers on a list for each partition LUN. The list can include or exclude up to 16 specific servers (or all servers) for each partition LUN.

The zoning information is stored as part of the array's metadata using the WWN for each server. The array partition's LUN zoning will remain, even if a new controller is installed or if the partition's LUN changes.

NOTE: Changes to LUN zoning take effect immediately. Access to partitions should be

limited when the partitions are not in use.

To set up LUN Zoning:

1. Display the Partition Menu.

From the Array Menu From the All Partitions Menu

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays.

2. Select the desired array and press Enter.

The Array Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

1. Select Partitions Menu from the System Menu and press Enter.

The Select Partition or Free Area screen should now display, along with a list of existing partitions and free space.

2. Select the desired partition and press Enter.

The Partition Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

IFS_80

The Partition Menu should now display (Figure 31).

2. Select LUN Zoning and press Enter.

The LUN exclude or include list should now display (Figure 43).

The default setting for each partition is "Include ALL Hosts", meaning all servers can access all partitions.

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62 Configuration

Figure 43: LUN Exclude/Include List Screen

3. Select the desired option (from the choices below) and press Enter.

- Display Host List: Displays a list of the servers currently on the include/exclude

- Add Host to List: Displays the Enter Host WWN screen. This option allows the

- Remove Host from List: Displays the Remove Host from List screen, including a list of

- Change Zone Type: Displays the Change Zone Type screen. The four (4) options

Include All - Permits all servers on the network to access the selected array. Hosts All servers can access all partitions. If an include/exclude list

(Default) was already created, this option can be used to override the

Include Listed - Allows the user to enter or select the WWNs or names (aliases) Hosts of the specific servers intended to access the selected partition.

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list for the selected partition. This option will only display servers if Add Host to List was already used (and one or more WWNs added to an include/exclude list).

user to add a server to the current list for the selected partition. Enter the WWN or name (alias) or select the server from the list and press Enter.

the servers currently on the include/exclude list for the selected partition.

are listed below:

list. The existing list is retained (the user can still display, add, or remove servers from the list).

Configuration 63

Exclude All - Permits NO servers on the network to access the selected Hosts partition. If an include/exclude list was already created, this

Exclude Listed - Allows the user to enter or select the WWNs or names (aliases) Hosts of the specific servers denied access to the selected partition.

If changes to LUN zoning have been made, the system will now confirm your request to change LUN zoning.

4. Select Yes and press Enter.

5. Press Esc to return to the LUN zoning screen.

option can be used to override the list. The existing list is retained (the user can still display, add, or remove servers from the list).

Changing All Partitions to Include All Hosts

This function allows the user to change all partitions to include all hosts from the General LUN Zoning menu. This allows the user to quickly change the LUN zoning for all partitions at once to permit all servers to see all partitions, overriding the existing setting for each partition. The controller, however, will retain all existing include/exclude lists.

Once this option is used, all previous LUN zoning settings for each partition must be changed back individually (refer to section "Configuring LUN Zoning" for further information).

To change all partitions to include all hosts:

1. Select Configuration Menu from the System Menu and press Enter.

The Configuration Menu should now display (Figure 38).

2. Select General LUN Zoning and press Enter.

The General LUN Zoning screen should now display (Figure 39).

3. Select Include All Hosts and press Enter.

The system will now confirm your request to include all hosts.

4. Press Esc to return to the General LUN Zoning screen.

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64 Configuration

Deleting a Partition

This function allows the user to delete a partition.

CAUTION: Deleting a partition also deletes all data stored in that partition! Be sure to

back up all data before deleting a partition!

NOTES: A partition cannot be deleted while any utility (Initialize, Verify, Expand, or Reconstruct)

is running on the array. The utility must be stopped (if allowed) or completed before the partition can be deleted.

There is also a Delete Partition option available in the Array Menu.

To delete a partition:

1. Display the Partition Menu.

From the Array Menu From the All Partitions Menu

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen should now display, along with a list of existing arrays.

2. Select the desired array and press Enter.

The Array Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

1. Select Partitions Menu from the System Menu and press Enter.

The Select Partition or Free Area screen should now display, along with a list of existing partitions and free space.

2. Select the desired partition and press Enter.

The Partition Menu screen should now display.

3. Select Partition Menu and press Enter.

The Select Partition screen should now display along with a list of exisiting partitions for the selected array.

4. Select the partition to be viewed and press Enter.

The Partition Menu screen should now display.

IFS_80

The Partition Menu should now display (Figure 31).

2. Select Delete this Partition and press Enter.

The system will now confirm your request to delete the partition.

3. Select Yes and press Enter.

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Configuration 65

Monitoring System Status

The user should monitor the system regularly to ensure that the controller, disks, and arrays are working properly. The Disk Array Administrator allows the user to monitor the system, including the following:

 Event Log

 Hardware Information

 Array Status Screen

 Disk Status Screen

 Power ON Self-Test (POST)

 Overall Statistics Screen

Displaying the Event Log

The controller's event log contains important information regarding the status of the controller, disks, and arrays. The user should check the log regularly to monitor the status of the system Refer to sections "Warning and Error Events" (regarding specific warning and error events) and "Understanding SCSI Errors" (regarding specific SCSI disk and channel errors) for further information.

Below is a list of some of the key warning and failure events included in the Event Log during operation:

 Disk detected error

 Disk channel error

 Battery failure

 Drive down

 Power up

 Array critical

 Array offline

 Temperature warning

 Temperature failure (will lead to a shutdown, which is logged)

 Voltage warning

 Voltage failure (will lead to a shutdown, which is logged)

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The event log will store the most recent 400 events. Events are numbered sequentially from 001-999. The event number resets to 001 after 999 events have been logged.

NOTE: If there is a problem with the controller or an array, check the event log before calling

The event information can be viewed in three (3) ways:

The user can also capture the event log to a file (refer to section "Capturing the Event Log File" for further information).

technical support. Event log messages can help resolve the problem without having to call technical support. Refer to section "Troubleshooting" for further information.

 Most recent event

 One event at a time (most recent event first)

 Full screen of events

Viewing the Most Recent Event

The most recent voltage or temperature event will display in rotation with the date and time (whenever the Disk Array Administrator times out and returns to its initial screen).

Viewing One Event at a Time

This function allows the user to view controller-related events one at a time. The most recent event will be displayed first.

To view one event at a time:

1. Select Event Log Menu from the System Menu and press Enter.

The Event Log Menu should now display (Figure 44).

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Figure 44: Event Log Menu Screen

2. Select View Event Log and press Enter.

The Event Log screen should now display the last event that occurred (Figure 45).

Event Date

Event

Event Time

Array Serial

Number

Figure 45: Event Log Screen

3. Press é to view the previous event.

Press é to continue viewing previous events.

4. Press Esc to return to the Event Log Menu.

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Viewing a Whole Screen of Events

This function allows the user to view events from the log file a whole screen at a time. This allows the user to review all recent events quickly (the events will display in chronological order, the most recent event being last in the list).

To view a whole screen of events:

1. Press CTRL-E from anywhere in the Disk Array Administrator Utility.

The first screen of events should now display (Figure 46).

Figure 46: Whole Screen of Events

Third column shows event type:

"Blank" = Information event

W= Warning event

E = Error event

2. Press U to page up or D to page down in the log.

3. Press CTRL-E to page through the other information screens and to return to the menu.

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Capturing the Event Log File

This function allows the user to capture the entire event log (which is saved as a file on the user's hard drive). This allows the user to print the log or even attach it to an email.

The steps below are for HyperTerminal. The procedure may differ for different terminal emulators.

To capture the event log file:

1. With HyperTerminal running, press CTRL-E until the Event Log displays.

2. Select Capture Text from the Transfer Menu (in HyperTerminal).

The Capture Text screen should now display.

3. Enter the desired path and file name to store the log file contents.

4. Click Start.

5. Press P (on the keyboard) to begin the transfer.

6. Select Capture Text from the Transfer Menu (in HyperTerminal).

The Capture Text screen should now display.

7. Click Stop.

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Displaying Hardware and Configuration Information

This function allows the user to display the controller's hardware and configuration information. For example, the firmware version can be found here (technical support may request this information when troubleshooting).

The hardware and configuration information can be displayed in two (2) ways:

 Hardware information only

 Hardware and configuration information

To view hardware information only:

1. Select Utilities Menu from the System Menu and press Enter.

The Utilities Menu should now display (Figure 47).

Figure 47: Utilities Menu Screen

2. Select Hardware Information and press Enter.

The Hardware Information screen should now display (Figure 48).

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Figure 48: Hardware Information Screen

3. Press Esc to return to the Utilities Menu.

To view hardware and configuration information:

1. Press CTRL-E from anywhere in the Disk Array Administrator Utility.

The first screen of events should now display (Figure 46).

2. Press CTRL-E again.

The HW Info screen should now display (Figure 49).

Figure 49: HW Info Screen

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3. Press CTRL-E again.

Press Esc to return to the previous screen.

The CFG Info screen should now display (Figure 50).

Figure 50: CFG Info Screen

4. Press CTRL-E or ESC to return.

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Displaying Overall Statistics

This function allows the user to view two (2) types of aggregate statistics for all partition LUNs:

 General statistics (Similar statistics are also available for individual partition LUNs.

Refer to section "Viewing Partition Statistics" for further information.)

- I/O operations per second (IOPS)

- Bandwidth (in MBytes/second)

- Number of read operations

- Number of write operations

- Total sectors written

- Total current command queue depth across all LUNs

 Host read/write histogram - shows how many host reads and writes fall into

a particular size range (I/O ranges are based on powers of two).

- 1 Sector

- 2-3 Sectors

- 4-7 Sectors

- 8-15 Sectors

- 16-31 Sectors

- 32-63 Sectors

- 64-127 Sectors

- 128-255 Sectors

- 256-511 Sectors

- 512-1023 Sectors

- 1024-2047 Sectors

- 2048 (and up) Sectors

This information may be helpful in interpreting performance based on individual system configurations and operating systems. The information displayed here can be useful in profiling applications and their usage of the partition, and determining what type of RAID level is applicable to the user's needs.

NOTE: The statistics are provided as general information. They are not intended for bench-

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74 Configuration

To access the general array statistics:

1. Select Utilities Menu from the System Menu and press Enter.

The Utilities Menu should now display (Figure 47).

2. Select Overall Statistics and press Enter.

The Overall Statistics Menu should now display (Figure 51).

Figure 51: Overall Statistics Menu Screen

3. Select View Statistics and press Enter.

The View Statistics screen should now display (Figure 52).

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Figure 52: View Statistics Screen

4. Press Esc to return to the Overall Statistics Menu.

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To access the read/write histogram:

1. Select Utilities Menu from the System Menu and press Enter.

The Utilities Menu should now display (Figure 47).

2. Select Overall Statistics and press Enter.

The Overall Statistics Menu should now display (Figure 51).

3. Select View R/W Histogram and press Enter.

The View R/W histogram should now display (Figure 53).

Figure 53: View R/W Histogram Screen

4. Press Esc to return to the Overall Statistics Menu.

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Resetting Overall Statistics

This function allows the user to reset ALL of the overall statistics back to zero (useful when monitoring performance or when performing benchmark testing).

NOTE: Resetting overall statistics will also reset the statistics for each individual partition

To reset the overall statistics:

1. Select Utilities Menu from the System Menu and press Enter.

2. Select Overall Statistics and press Enter.

3. Select Reset All Statistics and press Enter.

4. Select Yes and press Enter.

(refer to section " Resetting Partition Statistics" for further information).

The Utilities Menu should now display (Figure 47).

The Overall Statistics Menu should now display (Figure 51).

The system will now confirm your request to reset the statistics.

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Managing Spares

The controller will automatically reconstruct redundant (fault-tolerant) arrays (RAID 3, RAID 4, RAID 5, and RAID 50, and Mirrored) if an array becomes critical (and a sufficiently-sized spare drive is available). An array becomes critical when one or more member drives fail.

The user can set up two (2) types of spare drives:

 Dedicated - Available drive that is assigned to a specific array.

 Pool - Available drive that is assigned to the pool, which can provide a spare for

any failed drive in any redundant array.

In addition, if the Dynamic Spares option is enabled and a drive fails, the drive can be replaced and the controller will rescan the bus; it will then find the new disk drive and automatically start reconstruction of the array.

The controller will look for a dedicated spare first. If it does not find a sufficiently-sized dedicated spare, it will then look for a pool spare.

If a reconstruct does not start automatically, it means that there are no valid spares available. To start a reconstruct, the user must:

1. Replace the failed drive, if no other drive is available.

2. Add the new drive or another available drive as a dedicated spare to the array (or as a pool spare).

NOTE: Any pool spares added may be used by any critical array, and not necessarily by

the intended array.

Managing Dedicated Spares

Dedicated spares are unused disk drives that are assigned to a specific array. The disk must be as large as the smallest member in the array. A dedicated spare drive cannot be used in an array, nor as a pool spare.

Although using a dedicated spare is the most secure way of providing a spare for an array, it is not very cost-effective keeping an idle drive assigned to the array. An alternative method is to assign one or more idle drives to the spare pool (refer to section "Managing the Spare Pool" for further information).

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Adding a Dedicated Spare

This function allows the user to add dedicated spares to a specific array. If a member drive in the array fails, the controller will use a dedicated spare drive to automatically reconstruct the array. The user can add dedicated spares to Mirrored (RAID 1 and RAID 10) and parity (RAID 3, RAID 4, RAID 5, and RAID 50) arrays at anytime. Up to four (4) dedicated spare drives can be added to an array (refer to section "Creating Arrays" for further information).

NOTES: A spare cannot be added unless it has enough capacity to replace the smallest

To add a dedicated spare:

1. Select Array Menu from the System Menu and press Enter.

2. Select the desired array and press Enter.

3. Select Add Spare and press Enter.

4. Select the drive to add as a spare and press Enter.

5. Select Yes and press Enter.

member in the array.

If a drive was a member of an array and was removed from the array, it cannot be used as a spare until all the metadata is cleared from the drive (refer to section "ClearingMetadata from a Drive" for further information).

The Select Array screen will display, along with a list of existing arrays (Figure 16).

The Array Menu should now display (Figure 17).

The List of Available Drives screen should now display.

The system will confirm your request to add the spare.

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Deleting a Dedicated Spare

This function allows the user to delete a dedicated spare drive from an array at anytime.

To delete a dedicated spare:

1. Select Array Menu from the System Menu and press Enter.

The Select Array screen will display, along with a list of existing arrays (Figure 16).

2. Select the desired array and press Enter.

The Array Menu should now display (Figure 17).

3. Select Delete Spare and press Enter.

The List of Available Drives screen should now display.

4. Select the drive to delete as a spare and press Enter.

The system will confirm your request to delete the spare.

5. Select Yes and press Enter.

Enabling Dynamic Spares

This function allows the user to use all of the disk drives in redundant arrays, without assigning one as a spare. For example, if the Dynamic Spares option is enabled and a drive fails, the drive can be replaced and the controller will rescan the bus; it will then find the new disk drive and automatically start reconstruction of the array.

With the Dynamic Spares option enabled, the controller will first look for a dedicated (or a pool spare, if no dedicated drives are available) drive for reconstruction (if spares or drives are available).

NOTES: The spare or available drive must have enough capacity to replace the smallest

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member in the array, otherwise the controller cannot use it.

Make sure the spare or available drive does not contain any metadata (refer to section "Clearing Metadata from a Drive" for further information).

Performance in systems without a SAF-TE Processor Board will decrease if an array becomes critical (with this option enabled) and there are no available drives to start a reconstruct. To minimize performance impact, increase the rescan rate.

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To enable dynamic spares:

1. Select Configuration Menu from the System Menu and press Enter.

The Configuration Menu should now display (Figure 38).

2. Select Option Configuration and press Enter.

The Option Configuration Menu should now display (Figure 54).

Figure 54: Option Configuration Menu Screen

3. Select Dynamic Spare Configuration and press Enter.

The Dynamic Spare Configuration screen will display (Figure )

The current setting is marked with an * next to it.

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Figure 55: Dynamic Spare Configuration Screen

4. Select Enabled press Enter.

The Rescan Rate screen should now display.

5. Enter the rescan rate (in minutes).

This tells the controller how often it should look for an available drive by rescanning the bus. Rescanning the bus frequently can affect performance.

The system will confirm the rescan rate.

6. Select Yes and press Enter.

Managing the Spare Pool

The spare pool allows the user to have one or more disk drives available for the reconstruction of redundant arrays (Mirrored and Parity). Once a drive is assigned to the spare pool, it is no longer available for use as an array member or as a dedicated spare. If a pool spare is too small (not enough capacity to replace the smallest member in the array), the controller cannot use it.

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Adding a Spare to the Spare Pool

This function allows the user to add up to eight (8) drives to the spare pool to reconstruct any critical array on the controller. After an array has started using a pool spare, other critical arrays are prevented from using it. If a pool spare is too small (not enough capacity to replace the smallest member in the array), the controller cannot use it.

To add a pool spare:

1. Select Pool Spare Menu from the System Menu and press Enter.

The Pool Spare Menu should now display (Figure 56).

Figure 56: Pool Spare Menu Screen

2. Select Add Pool Spare and press Enter.

The Select Drives screen should now display (Figure 57).

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Figure 57: Select Drives Screen

3. Select drive(s) to add as spares and press Enter.

Deleting a Spare from the Spare Pool

This function allows the user to delete a spare from the spare pool at anytime.

To delete a spare from the spare pool:

1. Select Pool Spare Menu from the System Menu and press Enter.

The Pool Spare Menu should now display (Figure 56).

2. Select Delete Pool Spare and press Enter.

The Delete Pool Spare screen will display, along with a list of drives assigned to the pool spare.

3. Press Esc to return to the Pool Spare Menu.

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Displaying the Spare Pool

This function allows the user to display a list of all the pool spares.

To display the spare pool:

1. Select Pool Spare Menu from the System Menu and press Enter.

The Pool Spare Menu should now display (Figure 56).

2. Select Display Pool Spares and press Enter.

The Display Pool Spares screen will display, along with a list of all disk drives assigned to the spare pool.

3. Press Esc to return to the Pool Spare Menu.

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Configuring the Controller

The Disk Array Administrator allows the user to configure settings and perform a variety of functions on the controller, including:

 Reboot the controller

 Change the date/time

 Configure the host channels

 Configure the SCSI channels

 Configure the operating mode

 Change the sample rate

 Change the alarm mute setting

 Lock the cache setting

 Configure the battery

 Change the utility priority

 Rescan all channels

 Pause I/O

 Restore the default settings

 Upgrade the firmware

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Rebooting the Controller

This function allows the user to shut down and restart the controller after making certain configuration changes (or hardware changes). A normal shutdown ensures that the writeback cache has been flushed to the disk.

CAUTION: Any user accessing an array while the controller is shutting down will lose

To shut down and restart the controller:

1. Select Shutdown/Restart from the System Menu and press Enter.

The system will confirm your request to shutdown the controller.

2. Select Yes and press Enter.

3. Press Enter to reboot.

The system will perform a self-test. The controller is ready when the Disk Array Administrator boot-up screen displays (refer to section "Starting the Disk Array Administrator Utility" for further information).

access and possibly data as well!

Changing the Date and Time

This function allows the user to change the controller's date and time.

To set the date:

1. Select Configuration Menu from the System Menu and press Enter.

The Configuration Menu should now display (Figure 38).

2. Select Set Date/Time and press Enter.

The Set Date/Time Menu should now display (Figure 58).

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Figure 58: Set Date/Time Menu Screen

3. Select Set Date and press Enter.

The Set Date screen should now display (Figure 59).

Figure 59: Set Date Screen

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