IBM BladeCenter T Type 8730, BladeCenter T Type 8720 User Manual

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BladeCenter T Type 8720 and 8730

 

Hardware Maintenance Manual and

Troubleshooting Guide

BladeCenter T Type 8720 and 8730

 

Hardware Maintenance Manual and

Troubleshooting Guide

Note

Before using this information and the product it supports, be sure to read Appendix C, “Notices,” on page 157.

Sixth Edition (August 2006)

© Copyright International Business Machines Corporation 2004. All rights reserved.

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

About this manual

This manual contains diagnostic information, a Symptom-to-FRU index, service information, error codes, error messages, and configuration information for the BladeCenter® Type 8720 and 8730.

Important safety information

Be sure to read all caution and danger statements in this book before performing any of the instructions. See “Safety information” on page 113.

Lea todas as instruções de cuidado e perigo antes de executar qualquer operação.

Prenez connaissance de toutes les consignes de type Attention et Danger avant de procéder aux opérations décrites par les instructions.

Lesen Sie alle Sicherheitshinweise, bevor Sie eine Anweisung ausführen.

Accertarsi di leggere tutti gli avvisi di attenzione e di pericolo prima di effettuare qualsiasi operazione.

© Copyright IBM Corp. 2004

iii

Lea atentamente todas las declaraciones de precaución y peligro ante de llevar a cabo cualquier operación.

Online support

You can download the most current diagnostic, H8 flash, and device driver files from http://www.ibm.com/pc/support on the World Wide Web.

Support telephone numbers

View support telephone numbers at http://www.ibm.com/planetwide/ on the World Wide Web.

iv BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Contents

About this manual . . . . . . . . . . . . . . . . . . . . . . .

iii

Important safety information . . . . . . . . . . . . . . . . . . . .

iii

Online support . . . . . . . . . . . . . . . . . . . . . . . . .

iv

Support telephone numbers . . . . . . . . . . . . . . . . . . . .

iv

Chapter 1. General information. . . . . . . . . . . . . . . . . . .

1

Related publications . . . . . . . . . . . . . . . . . . . . . . . 3

Notices and statements used in this book . . . . . . . . . . . . .

.

.

4

Features and specifications for the BladeCenter T Type 8720 unit . . . .

.

.

5

Features and specifications for the BladeCenter T Type 8730 unit . . . .

.

.

7

Major components of the BladeCenter T Types 8720 and 8730 unit . . . .

.

.

9

Front view . . . . . . . . . . . . . . . . . . . . . . . .

.

.

9

Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . 15

BladeCenter T unit power, controls, and indicators . . . . . . . . .

. .

.

19

Starting the BladeCenter T unit . . . . . . . . . . . . . . .

. .

.

19

Shutting down the BladeCenter T unit . . . . . . . . . . . .

. .

.

21

Chapter 2. Configuring the BladeCenter T unit . . . . . . . . .

. .

.

23

Setting up the remote connection . . . . . . . . . . . . . . .

. .

.

25

Cabling the Ethernet port . . . . . . . . . . . . . . . . .

. .

.

25

Management and configuration program . . . . . . . . . . . .

. .

.

26

Setting up the management and configuration program . . . . . .

. .

.

26

Starting the management and configuration program . . . . . . .

. .

.

27

Setting management and configuration program options. . . . . .

. .

.

28

Saving and restoring the configuration file . . . . . . . . . . .

. .

.

29

Configuring an I/O module. . . . . . . . . . . . . . . . . .

. .

.

29

What to configure . . . . . . . . . . . . . . . . . . . . . . . 29

Supporting Ethernet failover . . . . . . . . . . . . . . . . .

.

.

30

Configuring the Ethernet controllers in the blade servers . . . . . .

.

.

30

BladeCenter T networking guidelines . . . . . . . . . . . . . . .

.

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31

Using Remote Deployment Manager Version 4.11 Update 3 or later . . .

.

. 33

Using IBM Director . . . . . . . . . . . . . . . . . . . . .

.

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33

Communicating with the IBM Director software . . . . . . . . . .

.

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33

Chapter 3. Diagnostics . . . . . . . . . . . . . . . . . . .

.

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35

Diagnostic tools overview . . . . . . . . . . . . . . . . . . . . . 35

Identifying problems using the Light Path Diagnostics feature . . . .

.

. .

.

35

Chapter 4. Setting up the BladeCenter T hardware . . . . . .

.

. .

.

37

Setting up the BladeCenter T unit . . . . . . . . . . . . . .

.

. .

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37

Installation guidelines . . . . . . . . . . . . . . . . . .

.

. .

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37

Preparing for system power . . . . . . . . . . . . . . .

.

. .

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38

System reliability considerations . . . . . . . . . . . . .

.

. .

.

39

Handling static-sensitive devices . . . . . . . . . . . . . . . . . 40 Preinstallation steps . . . . . . . . . . . . . . . . . . . . . . . 42

Removing and installing the bezel assembly . . . . . . . . .

. .

. .

.

43

Removing the bezel assembly . . . . . . . . . . . . .

. .

. .

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43

Installing the bezel assembly. . . . . . . . . . . . . .

. .

. .

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44

Removing and installing the bezel air filter . . . . . . . . . .

. .

. .

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44

Removing and installing power modules . . . . . . . . . .

. .

. .

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46

Removing a power module . . . . . . . . . . . . . .

. .

. .

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47

Installing a power module . . . . . . . . . . . . . . .

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. .

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48

Removing and installing the media tray . . . . . . . . . . .

. .

. .

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49

© Copyright IBM Corp. 2004

v

Removing the media tray . . . . . . . . . . . . . . . . . .

.

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50

Installing the media tray . . . . . . . . . . . . . . . . . .

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50

Removing and installing management modules . . . . . . . . . . .

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51

Removing a management module . . . . . . . . . . . . . . .

.

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52

Installing a management module . . . . . . . . . . . . . . .

.

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53

Removing and installing blower modules . . . . . . . . . . . . .

.

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54

Removing a blower module . . . . . . . . . . . . . . . . .

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55

Installing a blower module . . . . . . . . . . . . . . . . . .

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55

Removing and installing the KVM (keyboard, video, mouse) module . . .

.

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56

Removing the KVM module . . . . . . . . . . . . . . . . .

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57

Installing the KVM module. . . . . . . . . . . . . . . . . .

.

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57

Removing and installing the LAN module . . . . . . . . . . . . .

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58

Removing the LAN module . . . . . . . . . . . . . . . . .

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59

Installing the LAN module . . . . . . . . . . . . . . . . . .

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59

Removing and installing I/O modules . . . . . . . . . . . . . . .

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60

Removing an I/O module . . . . . . . . . . . . . . . . . .

.

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62

Installing an I/O module . . . . . . . . . . . . . . . . . .

.

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62

Blade servers . . . . . . . . . . . . . . . . . . . . . . .

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63

Blade server expansion options . . . . . . . . . . . . . . . .

.

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63

Removing and installing a blade server or filler module . . . . . . .

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64

Completing the installation. . . . . . . . . . . . . . . . . . . . . 66

Chapter 5. Service replaceable units . . . . . . . . . . . . . .

.

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67

DC terminal cover with fasteners . . . . . . . . . . . . . . . .

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68

AC rear panel . . . . . . . . . . . . . . . . . . . . . . .

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69

DC Rear Panel . . . . . . . . . . . . . . . . . . . . . . .

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70

Upper flex circuit assembly . . . . . . . . . . . . . . . . . .

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71

Lower flex circuit assembly . . . . . . . . . . . . . . . . . .

.

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72

Docking board/blower housing assembly - (dc Type 8720 and ac Type 8730)

 

 

75

Rear chassis stiffener bracket . . . . . . . . . . . . . . . . .

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77

Backplane . . . . . . . . . . . . . . . . . . . . . . . .

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79

Backplane insulator . . . . . . . . . . . . . . . . . . . . .

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81

Air damper . . . . . . .

. . . . . . . . . . . . . . . . .

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82

Mechanical chassis . . . .

. . . . . . . . . . . . . . . . .

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85

Chapter 6. Symptom-to-FRU index . . . . . . . . . . . . . . .

.

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89

Error symptoms . . . . . . . . . . . . . . . . . . . . . .

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89

Light path diagnostics LEDs . . . . . . . . . . . . . . . . . .

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98

Temperature error messages . . . . . .

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100

Blower error messages . . . . . . . .

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100

Power error messages . . . . . . .

. . . . . . .

. . .

. . . . 100

Blade server error messages . . . . .

. . . . . . .

. . .

. . . . 101

KVM error message . . . . . . . .

. . . . . . .

. . .

. . . . 102

Switch error messages . . . . . . .

. . . . . . .

. . .

. . . . 102

Management-module error messages . .

. . . . . . .

. . .

. . . . 103

Bus error messages . . . . . . . .

. . . . . . .

. . .

. . . . 104

Undetermined problems . . . . . . . . . . . . . . . . . . . . . 104 Problem determination tips . . . . . . . . . . . . . . . . . . . . 105

Chapter 7. Parts listing, BladeCenter T Type 8720 and 8730

. . . . .

.

107

Type 8720

and 8730

- Front view . . . . . . . . . . .

. . . . .

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107

Type 8720

and 8730

- Rear view . . . . . . . . . . . .

. . . . .

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108

Appendix A. Getting help and technical assistance . . . .

. . . . .

.

111

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

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111

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

. . . . .

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111

vi BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Getting help and information from the World Wide Web

. . . . .

. .

.

. 111

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

. . . . .

. . . . 112

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

. . . . .

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112

Appendix B. Related service information . . . . .

. . . . .

.

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.

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113

Safety information . . . . . . . . . . . . . . . . . . . . . . . 113 General safety. . . . . . . . . . . . . . . . . . . . . . . . 113 Electrical safety . . . . . . . . . . . . . . . . . . . . . . . 114 Safety inspection guide . . . . . . . . . . . . . . . . . . . . 115 Handling electrostatic discharge-sensitive devices . . . . . . . . . . 116 Grounding requirements . . . . . . . . . . . . . . . . . . . . 117 Safety notices (multi-lingual translations) . . . . . . . . . . . . . . 117

Appendix C. Notices . . . . . . . . . . . . . . . . . . . . . . 157 Edition notice . . . . . . . . . . . . . . . . . . . . . . . . . 157 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . 158 Important notes . . . . . . . . . . . . . . . . . . . . . . . . 158

Product recycling and disposal

. . .

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159

Battery return program . . .

. . .

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159

Electronic emission notices . . . . . . . . . . . . . . . . . . . . 160

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

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160

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

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160

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

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160

United Kingdom telecommunications safety requirement . . . . . .

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160

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

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161

Taiwanese Class A warning statement . . . . . . . . . . . . .

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161

Chinese Class A warning statement . . . . . . . . . . . . . .

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161

Japanese Voluntary Control Council for Interference (VCCI) statement

 

 

161

Power cords . . . . . . . . . . . . . . . . . . . . . . .

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162

Index . . . . . . . . . . . . . . . . . . . . . . . . . .

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165

Contents vii

viii BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Chapter 1. General information

The IBM® BladeCenter®T Types 8720 and 8730 units are rack-mounted, high-density, high-performance blade server systems developed for telecommunications network applications and other applications requiring physical robustness.

The BladeCenter T unit uses blade servers, switches, and other components that are common to the IBM BladeCenter product line. This common component strategy makes it ideal for applications in telecommunications networks that need high levels of computing power and access to common off-the-shelf middleware packages that are used in IT data centers. The BladeCenter T unit supports up to eight blade servers and four I/O modules, making it ideally suited for networking environments that require a large number of high-performance servers in a small amount of space. The BladeCenter T unit provides common resources that are shared by the blade servers, such as power, cooling, system management, network connections, backplane, and I/O (CD-ROM drive and connectors for USB, network interfaces, and – for blade servers that support the KVM function – keyboard, video, and mouse).

Performance, ease of use, reliability (NEBS/ETSI compliance), and expansion capabilities were key considerations during the design of the BladeCenter T system. These design features make it possible for you to customize the system hardware to meet your needs today, while providing flexible expansion capabilities for the future.

This Hardware Maintenance and Troubleshooting Guide provides information to:

vSet up and cable a BladeCenter T unit

vStart and configure a BladeCenter T unit

vInstall and remove modules, options, and blades

vReplace field replaceable units

vPerform troubleshooting and servicing of the BladeCenter T unit

Packaged with the Hardware Maintenance and Troubleshooting Guide are software CDs that help you to configure and manage the BladeCenter T unit.

This Hardware Maintenance and Troubleshooting Guide and other publications that provide detailed information about your BladeCenter T unit are provided in Portable Document Format (PDF) on the IBM BladeCenter T Documentation CD.

You can register the BladeCenter T unit and blade servers on the World Wide Web. To register, go to: http://www.ibm.com/pc/register/.

© Copyright IBM Corp. 2004

1

Record information about your BladeCenter T unit in the following table. You will need this information when you register your BladeCenter T unit with IBM.

Product name

IBM Eserver BladeCenter T

Machine type (8720 or 8730)

_________________________________________

Model number

_________________________________________

Serial number

_________________________________________

 

 

The serial number and model number are located in three places on the BladeCenter T unit:

vTop of the BladeCenter T unit.

vFront of the bezel assembly.

vFront of the BladeCenter T unit.

The labels on the top and the front of the bezel assembly of the BladeCenter T unit are shown in the following illustration.

Information label

CMM 1

CMM

2

Serial number label

A set of user labels comes with each blade server. When you install a blade server in the BladeCenter T unit, write identifying information on a label and place the label on the BladeCenter T unit bezel.

The following illustration shows the placement of the label, to the side of the blade server, on the BladeCenter T unit.

2 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

CMM

CMM

1

2

User label

Important: Do not place the label on the blade server itself or in any way block the ventilation holes on the blade server.

Related publications

This Hardware Maintenance and Troubleshooting Guide is provided in Portable Document Format (PDF). It contains information to help you solve the problem yourself or to provide helpful information to a service technician.

In addition to this Hardware Maintenance and Troubleshooting Guide, the following documentation is provided in PDF on the IBM BladeCenter T Documentation CD that comes with your BladeCenter T unit:

vSafety Information: This document contains translated caution and danger statements. Each caution and danger statement that appears in the documentation has a number that you can use to locate the corresponding statement in your language in the Safety Information document.

vInstallation and User’s Guide This publication provides general information about the server, including information about features, how to configure the server, and how to get help.

vBladeCenter T rack installation instructions

These documents contain instructions for installing the BladeCenter T unit in a 4-post and 2-post rack.

Note: The BladeCenter T can also be installed in some xSeries and pSeries racks, such as the IBM Netbay42 Enterprise Rack Model 9308. See the installation instructions that come with those racks.

vBladeCenter T Management Module Installation Guide

This document contains instructions for installing an IBM BladeCenter T management module option in a BladeCenter T unit and creating the initial configuration.

vBladeCenter T Management Module User’s Guide

This document contains instructions for using the Web interface to configure the management modules in a BladeCenter T unit.

Additional publications might be included on the IBM BladeCenter T Documentation CD.

Chapter 1. General information 3

Notices and statements used in this book

The caution and danger statements that appear in this book are also in the multilingual Safety Information book, which is on the IBM BladeCenter T Documentation CD. Each statement is numbered for reference to the corresponding statement in the Safety Information book.

The following notices and statements are used in the documentation:

vNote: These notices provide important tips, guidance, or advice.

vImportant: These notices provide information or advice that might help you avoid inconvenient or problem situations.

vAttention: These notices indicate possible damage to programs, devices, or data. An attention notice is placed just before the instruction or situation in which damage could occur.

vCaution: These statements indicate situations that can be potentially hazardous to you. A caution statement is placed just before the description of a potentially hazardous procedure step or situation.

vDanger: These statements indicate situations that can be potentially lethal or extremely hazardous to you. A danger statement is placed just before the description of a potentially lethal or extremely hazardous procedure step or situation.

4 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Features and specifications for the BladeCenter T Type 8720 unit

The following table provides a summary of the features and specifications of the BladeCenter T Type 8720 unit.

Table 1. BladeCenter T Type 8720 features and specifications

Media tray (on front):

vDVD/CD-RW drive: slim IDE

vTwo Universal Serial Bus (USB) v2.0 full speed ports

vSystem-status panel

Module bays (on front):

vEight hot-swap blade bays

vFour hot-swap power-module bays

vTwo hot-swap management module bays

Module bays (on rear):

vFour hot-swap I/O module bays

vFour hot-swap blower bays

vOne hot-swap KVM (keyboard, video, mouse) module

vOne hot-swap LAN module

Power modules:

vStandard: Two 1300-watt or greater hot-swap -48 V dc (-40 to -60 V dc) power modules

Power modules 1 and 2 supply power to:

-Blade bays 1 through 4

-Management modules 1 and 2

-I/O modules 1 and 2

-Media tray

-All KVM, LAN, and alarm interfaces

-All four blower modules

Power modules 1 and 2 provide redundancy to each other

vMaximum: Four 1300-watt or greater hot-swap -48 V dc (-40 to -60 V dc) power modules

Power modules 3 and 4 supply power to:

-Blade bays 5 through 8

-I/O modules 3 and 4

Power modules 3 and 4 provide redundancy to each other

Blowers are powered by all four power modules

LAN module:

vTwo 10/100 Mb Ethernet remote management connections

vOne DSUB 15P alarm connector

KVM module:

vVideo port (analog)

vPS/2 keyboard port

vPS/2 mouse port

vSystem-status panel

I/O modules:

vStandard: None

vMaximum: Four

Two hot-swap 1 Gb Ethernet four-port switch modules

Two hot-swap switch modules of another network-communication standard, such as Fibre Channel

Management module:

vStandard: One hot-swap management module providing system-management functions for the BladeCenter T unit

vMaximum: Two hot-swap management modules (one active, one redundant)

Redundant cooling:

Four variable-speed hot-swap blowers

Front bezel with changeable filter

Upgradeable microcode:

vmanagement module firmware

vI/O-module firmware (not all I/O module types)

vBlade server service processor firmware (BIOS, service processor)

Size (8 U):

vHeight: 349.25 mm (13.75 in. or 8 U)

vDepth: 508 mm (20 in.) from front of chassis to rear I/O connector plane Maximum depth: 600 mm (23.62 in.) including bezel, handles, and cable bend radius.

vWidth: 442 mm (17.4 in.)

vWeight:

Fully configured with modules and blade servers: Approx. 100.2 kg (221 lb)

Fully configured without blade servers: Approx. 61.7 kg (136 lb)

Security features:

vLogin password for remote connection

vLightweight Directory Access Protocol (LDAP) and role based security for user authentication and authorization

vSecure Shell (SSH) for remote command-line interface

vSecure socket layer (SSL) security for remote Web interface access

Predictive Failure Analysis® (PFA) alerts:

vBlowers

vBlade-dependent features

vPower supplies

Declared acoustical noise emission levels for normal operations:

vSound-power levels (upper-limit): 7.8 bels

vSound-pressure levels (average), for four one-meter bystander positions: 63 dBA

The noise emission levels stated are the declared upper limit sound-power levels, in bels, for a random sample of machines. All measurements made in accordance with ISO 7779 and reported in conformance with ISO 9296.

Environment:

vAir temperature:

Altitude: -60 to 1800 m (-197 ft to 6000 ft)

-BladeCenter T on: 5° to 40°C (41° to 104°F)

-BladeCenter T on (short term): -5° to 55°C (23° to 131°F)

Altitude: 1800 m to 4000 m (6000 ft to 13000 ft)

-BladeCenter T on: 5° to 30°C (41° to 86°F)

-BladeCenter T on (short term): -5° to 45°C (23° to 113°F)

System unit off: uncontrolled

vRate of temperature change: 30°C/hour (54°F/hour)

vHumidity:

BladeCenter T on: 5% to 85%

BladeCenter T on (short term): 5% to 90% not to exceed 0.024 water/kg of dry air

BladeCenter T off: uncontrolled

Electrical input:

vdc power

vInput voltage: -48 V dc (-38 V dc to -75 V dc)

vInput current:

Chassis: 70 amp maximum

Single power-supply feed: 70 amp maximum

vInput connector type: Two (2) four post DC terminals, rated at 70 amps each.

Heat output:

vInput kilovolt-amperes (kVA) approx.

Minimum configuration: 0.2 kVA

Maximum configuration: 3.7 kVA

vBTU output

Ship configuration:

673 Btu/hour (197 watts)

Full configuration:

12640 Btu/hour (3707 watts)

Chapter 1. General information 5

Notes:

1.For details about the BladeCenter T unit port specifications, see “BladeCenter T unit power, controls, and indicators” on page 19.

2.For information about which types of I/O modules can be installed in which I/O-module bays, see “I/O modules” on page 19.

3.The operating system in the blade server must provide USB support for the blade server to recognize and use the keyboard, mouse, and CD-ROM drive. The BladeCenter T unit uses USB for internal communication with these devices.

6 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Predictive Failure Analysis (PFA) alerts: v Blowers
v Blade-dependent features v Power supplies

Features and specifications for the BladeCenter T Type 8730 unit

The following table provides a summary of the features and specifications of the BladeCenter T Type 8730 unit.

Table 2. BladeCenter T Type 8730 features and specifications

Media tray (on front):

vDVD/CD-RW drive: slim IDE

vTwo Universal Serial Bus (USB) v2.0 full speed ports

vSystem-status panel

Module bays (on front):

vEight hot-swap blade bays

vFour hot-swap power-module bays

vTwo hot-swap management module bays

Module bays (on rear):

vFour hot-swap I/O module bays

vFour hot-swap blower bays

vOne hot-swap KVM (keyboard, video, mouse) module

vOne hot-swap LAN module

Power modules:

vStandard: Two 1300-watt or greater 220-volt (200-240 V ac) hot-swap power modules

Power modules 1 and 2 supply power to:

-Blade bays 1 through 4

-Management modules 1 and 2

-I/O modules 1 and 2

-Media tray

-All KVM, LAN, and alarm interfaces

-All four blower modules

Power modules 1 and 2 provide redundancy to each other

vMaximum: Four 1300-watt or greater 220-volt (200-240 V ac) hot-swap power modules

Power modules 3 and 4 supply power to:

-Blade bays 5 through 8

-I/O modules 3 and 4

Power modules 3 and 4 provide redundancy to each other

Blowers are powered by all four power modules

LAN module:

vTwo 10/100 Mb Ethernet remote management connections

vOne DSUB 15P alarm connector

KVM module:

vVideo port (analog)

vPS/2 keyboard port

vPS/2 mouse port

vSystem-status panel

I/O modules:

Declared acoustical noise emission levels

v

Standard: None

for normal operations:

v

Maximum: Four

v Sound-power levels (upper-limit):7.8 bels

 

– Two hot-swap 1 Gb Ethernet

v Sound-pressure levels (average), for four

 

four-port switch modules

 

one-meter bystander positions: 63 dBA

 

– Two hot-swap switch modules of

The noise emission levels stated are the

 

another network-communication

 

declared upper limit sound-power levels, in

 

standard, such as Fibre Channel

 

bels, for a random sample of machines. All

 

 

Management module:

measurements made in accordance with ISO

7779 and reported in conformance with ISO

v Standard: One hot-swap management

9296.

 

 

module providing system-management

 

 

 

 

functions for the BladeCenter T unit

Environment:

 

 

v Maximum: Two hot-swap management

v

Air temperature:

 

modules (one active, one redundant)

 

– BladeCenter T on: 10° to 35°C (50° to

Redundant cooling:

 

 

95°F). Altitude: 0 to 914 m (2998.69 ft).

 

– BladeCenter T on: 10° to 32°C (50° to

Four variable-speed hot-swap blowers

 

 

89.6°F). Altitude: 914 m to 2134 m

Front bezel with changeable filter

 

 

(2998.69 ft to 7000 ft).

 

– BladeCenter T off: -40° to 60° C (-40° to

Upgradeable microcode:

v

 

140°).

Humidity:

v

management module firmware

 

– Server on: 8% to 80%

v I/O-module firmware (not all I/O module

 

– Server off: 8% to 80%

 

types)

Electrical input:

v Blade server service processor firmware

v Sine-wave input (50 or 60 Hz single-phase)

 

(BIOS, service processor)

 

required

 

 

v

Size (8 U):

Input voltage:

v Height: 349.25 mm (13.75 in. or 8 U)

 

– Minimum: 200 V ac

 

– Maximum: 240 V ac

v Depth: 508 mm (20 in.) from front of

v

Input current:

 

chassis to rear I/O connector plane

 

Maximum depth: 600 mm (23.62 in.)

 

– Chassis: 18 amp maximum @ 208 V ac

 

 

– Single power-supply feed: 9 amp

 

including bezel, handles, and cable

 

 

 

 

maximum

 

bend radius.

 

 

 

v Input connector type: Four (4) C13 inputs,

v Width: 442 mm (17.4 in.)

 

rated at 8 amps each

v

Weight:

 

 

– Fully configured with modules and

Heat output:

 

blade servers: Approx. 100.2 kg (221

 

lb)

v Input kilovolt-amperes (kVA) approx.

 

– Fully configured without blade

 

– Minimum configuration: 0.2 kVA

 

 

– Maximum configuration: 3.5 kVA

 

servers: Approx. 61.7 kg (136 lb)

v

 

BTU output

 

 

Security features:

 

Ship configuration:

 

 

673 Btu/hour (197 watts)

v Login password for remote connection

 

 

 

Full configuration:

v Secure Shell (SSH) for command-line

 

 

 

11900 Btu/hour (3490 watts)

 

interface

 

 

 

 

 

 

v Secure socket layer (SSL) security for

 

 

 

 

remote Web management access

 

 

 

 

 

 

 

 

Chapter 1. General information 7

Notes:

1.For details about the BladeCenter T unit port specifications, see “BladeCenter T unit power, controls, and indicators” on page 19.

2.For information about which types of I/O modules can be installed in which I/O-module bays, see “I/O modules” on page 19.

3.The operating system in the blade server must provide USB support for the blade server to recognize and use the keyboard, mouse, and CD-ROM drive. The BladeCenter T unit uses USB for internal communication with these devices.

8 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Major components of the BladeCenter T Types 8720 and 8730 unit

The following illustration shows the locations of major components in your

BladeCenter T unit.

KVM module

I/O module

LAN

Management module

module

 

Filler blade

Blower module

Blade server

(4 units)

 

Power module

 

 

Media tray

 

Bezel assembly

Attention: To maintain proper system cooling, each module bay must contain either a module or a filler module; each blade bay must contain either a blade server or a filler blade.

Front view

This section identifies the components, controls, and LEDs on the front of your BladeCenter T unit.

Management-module bay 1

Management-module bay 2

Power module 1

 

Power module 2

 

CMM

CMM

 

1

2

 

 

Blade server 1

 

 

Blade server 8

Power module 3

 

Power module 4

ESD connector

Media tray

Front panel

Chapter 1. General information 9

System service cards

These cards contain system service instructions and a writable area for your use. The cards are located in a slot just above the management-module bays. To access the service cards, slide out the cards as shown in the following illustration.

System service card

CMM 1

CMM

2

Management module controls and indicators

These management-module controls and indicators provide status information about the management module and remote management connection. For additional information, see the Hardware Maintenance Manual and Troubleshooting Guide on the IBM BladeCenter T Documentation CD.

Management module

Serial port

Power LED

Reset button

Active LED

Error LED

Management module LEDs: These LEDs provide status information about the management module and remote management connection.

vPower: When this green LED is lit, it indicates that the management module has power.

vActive: When this green LED is lit, it indicates that the management module is actively controlling the BladeCenter T unit. Only one management module actively controls the BladeCenter T unit. If two management modules are installed in the BladeCenter T unit, this LED is lit on only one.

10 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

vError: When this amber LED is lit, it indicates that an error has been detected somewhere on the management module. When this LED is lit, the system error LED (critical, major, or minor) on each of the BladeCenter T system-status panels is also lit.

Management module IP reset button: Do not press this button unless you intend to erase your configured IP addresses for the management module and lose connection with the remote management station, the switch modules, and the blade servers. If you press this button, you will have to reconfigure the management module settings (see the information beginning with “Setting up the remote connection” on page 25 for instructions).

Press this recessed button to reset the IP configuration of the management module network interfaces (Ethernet 1, Ethernet 2, gateway address, and so on) to the factory defaults and then restart the management module.

Use a straightened paper clip to press the button.

Serial connector: Use this connection for configuring and managing the BladeCenter components over a serial line through the command-line interface (CLI) user-interface. This port provides access and redirection to the serial-over-LAN (SOL) interface of any processor blade server. For example, you can connect a laptop device to the serial connector and use a terminal-emulator program to configure the assorted IP addresses, user accounts, and other management settings through the CLI user-interface.

Media tray

The media tray is a hot-swap unit that is installed on the front of the BladeCenter T unit and contains the system-status panel, I/O, and CD-ROM drive.

Media tray

CD-ROM drive

System-status panel USB connectors

The following illustration shows the system-status LEDs on the system-status panel on the front of the BladeCenter T unit.

Media tray

USB connectors

CRT MJR MNR

Critical

Power Location

Major Minor

The system-status panel on the front of the BladeCenter T system has five system-status LEDs and two USB connectors.

Chapter 1. General information 11

System status LEDs: The LEDs on this part of the panel provide status information for the BladeCenter T unit.

vPower: When continuously lit, this green LED indicates the presence of power in the BladeCenter T unit. The LED turns off when the power source is interrupted.

Attention: If the power LED is off, it does not mean electrical power is not present in the BladeCenter T unit. The LED might be burned out. To remove all electrical power from the BladeCenter T unit, you must disconnect all power cords from the rear of the BladeCenter T unit.

vLocation: This blue LED is for system identification. A system administrator or servicer uses this LED to locate a specific BladeCenter T unit for service or repair. You can turn off the location LED through the Web interface or a remote management console.

Alarm LEDs: These LEDs provide alarm notifications for the BladeCenter T unit.

vCRT (Critical alarm, amber (default) or red): When continuously lit, this LED indicates the presence of a critical system fault. The system comes with amber as the default. See the BladeCenter T Management Module User’s Guide for information on setting the color of this LED.

A critical system fault is an error or event that is unrecoverable. In this case, the system cannot continue to operate. An example is the loss of a large section of memory that causes the system to be incapable of operating.

vMJR (Major alarm, amber (default) or red): When continuously lit, this LED indicates the presence of a major system fault. The system comes with amber as the default. See the BladeCenter T Management Module User’s Guide for information on setting the color of this LED.

A major system fault is an error or event that has a discernible impact to system operation. In this case, the system can continue to operate but with reduced performance. An example is the loss of one of two mirrored disks.

vMNR (Minor alarm, amber): When continuously lit, this LED indicates the presence of a minor system fault. A minor system fault is an error or event that has little impact to system operation. An example is a correctable ECC error.

USB connectors: There are two USB connectors on the front system-status panel. You can use these USB connectors to connect two USB peripheral devices without an external hub. If more devices are required, you can connect an external hub to any of the built-in connectors.

12 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Power modules

AC power module

 

DC power module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AC in LED

DC in LED

 

DC out LED

DC out LED

Error LED

Error LED

Power module LEDs: Each power module has three LEDs to indicate the status of the power module.

vAC (or DC) in: When continuously lit, this green LED indicates that the input power source is working. If the LED is not lit, it indicates that the input power source is not present or is incorrect.

vDC out: When continuously lit, this green LED indicates that the output power is present. If the LED is not lit, it indicates that the output power is not present.

v! (Error): When continuously lit, this amber LED indicates that there is a error condition within the power module.

Table 3. Power module LEDs

 

 

! (Error)

 

DC IN or AC IN

DC OUT

(amber)

Description and action

 

 

 

 

On

On

Off

The power module is on and operating

 

 

 

correctly.

 

 

 

 

On

Off

Off or On*

There is an output power problem. A system

 

 

 

error has shut down the power module.

 

 

 

Actions: Determine the cause of the shutdown

 

 

 

using the diagnostics and replace the failed

 

 

 

component. When the fault has been cleared,

 

 

 

reset the power module in one of the following

 

 

 

ways:

 

 

 

v Issue a power-module reset through the

 

 

 

management module.

 

 

 

v Remove the power module from the unit for

 

 

 

at least 10 seconds.

 

 

 

If the problem remains, have the unit serviced.

 

 

 

*Error LED will operate only if a redundant

 

 

 

power supply is installed.

 

 

 

 

Chapter 1. General information 13

Table 3. Power module LEDs (continued)

 

 

! (Error)

 

DC IN or AC IN

DC OUT

(amber)

Description and action

 

 

 

 

Off

Off

Off or On*

There is an input power problem.

 

 

 

Possible causes:

 

 

 

v There is no power to the power module.

 

 

 

Actions: Make sure that:

 

 

 

1. The power is correctly connected to the

 

 

 

unit.

 

 

 

2. The power is connected to 220 v ac

 

 

 

(8730) or –48 v dc (8720).

 

 

 

3. The power source functions properly.

 

 

 

v The power module has failed.

 

 

 

Action: Replace the power module.

 

 

 

If the problem remains, have the unit serviced.

 

 

 

*Error LED will operate only if a redundant

 

 

 

power supply is installed.

 

 

 

 

On

On

On

There is a fault condition in the power supply.

 

 

 

Possible causes:

 

 

 

v Thermal fault.

 

 

 

Action: Replace the power module.

 

 

 

v 12 v over-voltage power condition or 12 v

 

 

 

under-voltage power condition.

 

 

 

Actions: Determine the cause of shutdown

 

 

 

using diagnostics and replace the failed

 

 

 

component. When the fault has ben

 

 

 

cleared, reset the power module.

 

 

 

– Issue a power-module reset through the

 

 

 

management module.

 

 

 

– Remove the power module from the unit

 

 

 

for at least 10 seconds.

 

 

 

 

14 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Rear view

This section identifies the components and indicators on the rear of the BladeCenter T unit.

I/O module 2

 

 

I/O module 1

KVM module

 

 

 

 

 

TOP D

 

TOP D

 

 

 

2

1

 

 

 

 

Alarms

 

 

CRT

MNR

 

 

 

MJR

 

 

 

Blower module 2

 

 

 

 

2

4

 

 

 

 

 

 

1

3

Blower module 4

BTM E

 

BTM E

 

 

 

 

 

LAN module

Blower module 1

Blower module 3

I/O module 4

ESD connector

I/O module 3

Blower modules

The blower modules are hot-swap units that are installed into the rear of the system. The BladeCenter T unit comes with four blowers that are in a 3+1 redundancy configuration. All the cooling requirements are met if one blower fails. All blowers contain a backflow device that prevents the system from drawing air into the exhaust port of a failed blower. The management module in the BladeCenter T unit controls the blower speed and detects blower failures.

Error LED

Power LED

Blower

Blower LEDs: The LEDs on each blower provide status information about the blower.

vPower: When this green LED is lit, it indicates that the blower module has power.

vError: This amber LED is lit and stays lit when an error has been detected in the blower. The system error LED on the BladeCenter system-status panels is also lit.

Chapter 1. General information 15

KVM (keyboard, video, mouse) module indicators and input/output connectors

The KVM module is a hot-swap module that is installed on the rear of the BladeCenter T unit and is held in place by captive thumbscrews. This module contains two PS/2 connectors for the keyboard and mouse, a system-status panel, and an HD-15 video connector.

Thumbscrew

 

 

 

 

 

Keyboard

Major (MJR) alarm LED

 

 

Mouse

Minor (MNR) alarm LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CRT

MNR

 

MJR

Power LED

Video

 

Critical (CRT) alarm LED

 

Location LED

System-status LEDs: These LEDs provide status information for the BladeCenter T unit.

vPower: When continuously lit, this green LED indicates the presence of power in the BladeCenter T unit. The LED turns off when the power source is interrupted.

Attention: If the power LED is off, it does not mean electrical power is not present in the BladeCenter T unit. The LED might be burned out. To remove all electrical power from the BladeCenter T unit, you must disconnect all power cords from the rear of the BladeCenter T unit.

vLocation: This blue LED is for system identification. A system administrator or servicer uses this LED to locate a specific BladeCenter T unit for service or repair. You can turn off the location LED through the Web interface or a remote management console.

Alarm LEDs: These LEDs provide alarm notifications for the BladeCenter T unit.

vCRT (Critical alarm, amber (default) or red): When continuously lit, this LED indicates the presence of a critical system fault. The system comes with amber as the default. See the BladeCenter T Management Module User’s Guide for information on setting the color of this LED.

A critical system fault is an error or event that is unrecoverable. In this case, the system cannot continue to operate. An example is the loss of a large section of memory that causes the system to be incapable of operating.

vMJR (Major alarm, amber (default) or red): When continuously lit, this LED indicates the presence of a major system fault. The system comes with amber as the default. See the BladeCenter T Management Module User’s Guide for information on setting the color of this LED.

A major system fault is an error or event that has a discernible impact to system operation. In this case, the system can continue to operate but with reduced performance. An example is the loss of one of two mirrored disks.

vMNR (Minor alarm, amber): When continuously lit, this LED indicates the presence of a minor system fault. A minor system fault is an error or event that has little impact to system operation. An example is a correctable ECC error.

16 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Connectors: The KVM module has the following I/O connectors:

vKeyboard connector: The BladeCenter T KVM module contains one PS/2-style keyboard connector.

Use this connector to connect a PS/2 keyboard to the BladeCenter T unit.

6 5

4 3

21

v Mouse connector: The BladeCenter T KVM module contains one PS/2-style mouse connector.

Use this connector to connect a PS/2 mouse to the BladeCenter T unit.

6 5

4 3

21

v Video connector: The BladeCenter T KVM module contains one standard video connector. The integrated video controller on each blade server is compatible with SVGA and VGA and communicates through this video port.

Use this connector to connect a video monitor to the BladeCenter T unit.

5 1

15 11

Chapter 1. General information 17

LAN-module indicators and input/output connectors

The LAN module is a hot-swap module that is installed on the rear of the BladeCenter T unit and is held in place by captive thumbscrews. The LAN module provides the electrical and mechanical interface to the BladeCenter T unit for the two local area network (Ethernet) connections, as driven from each management module, and the telco external alarms. This module contains two RJ-45 connectors with LEDs and one DSUB 15P telco alarm connector.

Thumbscrews

Remote management and console (Ethernet)

2 1

Alarms

Ethernet link LED

Ethernet activity LED

Alarms connector

LAN-module LEDs: These LEDs provide status information about the LAN connection:

vEthernet link: When this green LED is lit, there is an active connection through the port to the network.

vEthernet activity: When this green LED is flashing, it indicates that there is activity through the port over the network link.

LAN-module connectors:

vRemote management and console (Ethernet) connectors: The LAN module provides two Ethernet RJ-45 connectors.

The BladeCenter T LAN module contains two 10/100 Mb Ethernet connectors that provide the remote connections, driven from each management module, to the network management station on the network.

Use these ports for remote management and remote console.

The network management station, through these connectors, can access control functions running in the management module, the service processor on each blade server, or within each switch module. However, it cannot use these ports to communicate with application programs running in the blade servers. The network management station must direct those communications through a network connected to the external ports in the I/O modules in the BladeCenter T unit.

vAlarms connector: The LAN module provides one telco DB15 alarms connector (male) for critical, major, and minor telco alarms. Each of the alarms has a relay that enables multiple system alarm indicators to be daisy-chained together.

Table 4 on page 19 shows the pinouts for the telco alarms connector.

 

Alarms

1

8

9

15

18 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Note: The service processor, management module, or systems-management function must monitor the alarm reset inputs to maintain the fault condition that you set for the unit. The alarm reset inputs can be voltages in excess of standard logic levels, so you must electrically or optically isolate them from the monitoring logic.

Table 4. Alarms connector pinout

Pin #

Description

I/O

Pin #

Description

I/O

 

 

 

 

 

 

1

Minor alarm reset +

I

9

Minor alarm normally

O

 

 

 

 

closed

 

 

 

 

 

 

 

2

Minor alarm reset -

I

10

Minor alarm common

O

 

 

 

 

 

 

3

Major alarm reset +

I

11

Major alarm normally open

O

 

 

 

 

 

 

4

Major alarm reset -

I

12

Major alarm normally

O

 

 

 

 

closed

 

 

 

 

 

 

 

5

Critical alarm normally

O

13

Major alarm common

O

 

open

 

 

 

 

 

 

 

 

 

 

6

Critical alarm normally

O

14

Reserved

O

 

closed

 

 

 

 

 

 

 

 

 

 

7

Critical alarm common

O

15

Reserved

O

 

 

 

 

 

 

8

Minor alarm normally open

O

 

 

 

 

 

 

 

 

 

The electrical specifications for the alarms connector are as follows:

Outputs

-Voltage range: 0 V dc to -100 V dc (maximum current 0.3 A at 100 V dc)

-Current range: 0 A to 1 A (maximum voltage 30 V dc at 1 A)

-Worst-case VA: 1 A at -30 V dc (30 VA maximum) indefinitely

Inputs

-Voltage range: 0 V dc to -100 V dc (including transients)

-Differential input voltage: 3 V dc to 72 V dc

Reset input activation

Pulse width: 200 ms (minimum) to 300 ms

I/O modules

You can install a maximum of four I/O modules at the rear of the system (a maximum of four Gbit Ethernet switches, or a maximum of two Gbit Ethernet switches and two Fibre Channel switches). The minimum system configuration requires one Gbit Ethernet switch or pass-thru module. The I/O switch modules provide high-performance connectivity between the blade servers.

See the documentation that comes with each I/O module for a description of the LEDs and connectors on the I/O module.

BladeCenter T unit power, controls, and indicators

This section describes the controls and light-emitting diodes (LEDs) and how to start and shut down the BladeCenter T unit.

Starting the BladeCenter T unit

Complete the following steps to start the BladeCenter T unit:

1. Read the information in “System reliability considerations” on page 39.

Chapter 1. General information 19

2.Reinstall the four blowers into the rear of the BladeCenter T unit if you have not done so already. See “Removing and installing blower modules” on page 54 for detailed instructions.

Note: The blowers will not start until the power modules are installed.

3.When the power connections are in place, you can reinstall the power modules in the BladeCenter T unit. After you connect power to the BladeCenter T unit, all the power-module bays receive power. To start the BladeCenter T unit, install power modules in all four power-module bays or install power modules in power-module bays 1 and 2 and filler modules in bays 3 and 4. See “Installing a power module” on page 48 for detailed instructions.

AC power module

 

DC power module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AC in LED

DC in LED

 

DC out LED

DC out LED

Error LED

Error LED

Make sure that the LEDs on the power modules indicate that they are operating correctly. Make sure that the input and output power LEDs on each power module are lit, and the error LEDs are not lit.

4.Before proceeding, make sure that the LEDs on the blower modules indicate that they are operating correctly. Make sure that the power LED on each blower is lit, and the error LEDs are not lit.

5.Make sure that the following BladeCenter T modules are installed correctly. See “Media tray” on page 11 for the location of the LEDs on these modules.

v Media tray

vKVM module

vLAN module

vManagement module

vI/O modules

6.Install the blade servers or filler modules in all of the blade server bays before you power on any of the blade servers. See “Removing and installing a blade server or filler module” on page 64 for detailed instructions. Make sure that the power LED on each blade server is flashing.

7.Install the bezel assembly on the front of the BladeCenter T unit by inserting the bottom bezel hooks into the bezel slots at the bottom of the BladeCenter T unit. Push in the bottom and the top of the bezel assembly until they both lock firmly into place.

20 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Notes:

1.Within 2 minutes after power has been connected to the BladeCenter T unit, the management module applies power to the I/O modules.

2.If a power failure occurs, the BladeCenter T unit restarts automatically when power is restored.

3.The blade-server power button turns on or turns off the blade server if local power control has not been disabled through the management module.

4.The blade-server power button turns on the blade server only if the green power light on the blade server is flashing slowly. If the light flashes rapidly, the blade server has not yet synchronized with the management module, and pressing the power button will have no effect. See “Media tray” on page 11 for more information about the controls and indicators on the BladeCenter T unit modules.

See the Installation and User’s Guide for your blade server on the IBM Documentation CD that comes with the blade server for the location of the blade server LEDs.

Shutting down the BladeCenter T unit

You can shut down the BladeCenter T unit by turning off the blade servers and disconnecting the BladeCenter T unit from the power source.

Complete the following steps to shut down the BladeCenter T unit.

1.See your blade server operating-system documentation for the procedure to shut down the operating system in the blade servers; then, shut down each operating system.

2.Press the power-control button on the front of each blade server. Wait until the solid green power LED on the blade server goes to a slow flash indicating that the blade server drives have stopped spinning.

Statement 5:

CAUTION:

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

1

2

Note: The BladeCenter T Type 8720 and 8730 units do not have a power switch. The units also have more than one connection to power. To remove all electrical current from the unit, make sure that all connections to input power are disconnected at the power input terminals or connectors.

3.If you have a BladeCenter T Type 8720 (dc-power) unit, disconnect the unit from the input power at the dc power distribution panel by switching the circuit

Chapter 1. General information 21

breakers to the Off position or removing the fuses as applicable. Make sure that both circuits are disconnected or turned off.

If you have a BladeCenter T Type 8730 (ac-power) unit, disconnect all power cords on the BladeCenter T unit from the ac power distribution unit (PDU).

Note: After you disconnect the BladeCenter T unit from power, wait at least 5 seconds before you connect the BladeCenter T unit to power again.

22 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Chapter 2. Configuring the BladeCenter T unit

The BladeCenter T unit automatically detects the modules and blade servers that are installed and stores the vital product data (VPD). When the BladeCenter T unit is started, the management module automatically configures the remote management port on the management module, accessed through the LAN module on the rear of the BladeCenter T unit, so that you can configure and manage the BladeCenter T unit and blade servers. You configure and manage the BladeCenter T unit remotely, through the management module, using the Web-based user interface.

Note: There are two ways to configure the switch modules; through the management-module Web interface, or through an external switch-module port enabled through the management module, using a Telnet interface or a Web browser. See the documentation that comes with the switch module for more information.

For the active management module to communicate with the I/O modules in the BladeCenter T unit, you must configure the IP addresses for the following internal and external ports:

vThe external Ethernet (remote management) port on the management module, accessed through the LAN module on the rear of the BladeCenter T unit (see “Configuring the external Ethernet port” on page 28 for instructions). The initial management module autoconfiguration enables the network management station to connect to the management module to configure the port completely and to configure the rest of the BladeCenter T unit.

vThe internal Ethernet port on the management module for communication with the I/O modules (see “Configuring the internal Ethernet port” on page 29 for instructions).

vThe management port on each switch module provides for communication with the management module. You configure this port by configuring the IP address for the switch module (see “Configuring management ports on I/O modules” on page 29 for instructions).

Note: Some types of I/O modules, such as the pass-thru module, have no management port.

See the documentation that comes with the I/O module to determine what else you must configure in the I/O module.

To communicate with the blade servers for functions such as deploying an operating system or application program over the network, you must also configure at least one external (in-band) port on an Ethernet switch module in I/O-module bay 1 or 2. See “What to configure” on page 29 for information about configuring external ports on Ethernet switch modules.

The management module supports the following Web browsers for remote access. The Web browser that you use must be Java-enabled, must support JavaScript1.2 or later, and must have the Java Virtual Machine (JVM) 1.4.1 or later Plug-in installed. The JVM Plug-in is available at the Java Web site at http://www.java.com/.

vMicrosoft® Internet Explorer 5.5 (with latest Service Pack installed), or later

vNetscape Navigator 4.72, or later (version 6 is not supported)

vMozilla version 1.3, or later

© Copyright IBM Corp. 2004

23

For best results when using the Web browser, set the monitor to 256 colors. Use only the video resolutions and refresh rates given in the following table. These are the only video resolution and refresh rate combinations that are supported for all system configurations.

Resolution

Refresh rate

 

 

640 x 480

60 Hz

 

 

640 x 480

72 Hz

 

 

640 x 480

75 Hz

 

 

640 x 480

85 Hz

 

 

800 x 600

60 Hz

 

 

800 x 600

72 Hz

 

 

800 x 600

75 Hz

 

 

800 x 600

85 Hz

 

 

1024 x 768

60 Hz

 

 

1024 x 768

75 Hz

 

 

The Web interface does not support the double-byte character set (DBCS) languages.

The Web-based user interface communicates with the management and configuration program that is part of the firmware that comes with the management module. You can use this program to perform the following tasks:

vDefining the login IDs and passwords.

vSelecting recipients for alert notification of specific events.

vMonitoring the status of the BladeCenter T unit and blade servers.

vControlling the BladeCenter T unit and blade servers.

vAccessing the I/O modules to configure them.

vChanging the startup sequence in a blade server.

vSetting the date and time.

vUsing a remote console for the blade servers.

vChanging ownership of the keyboard, video, and mouse.

Note: Some blade server models do not support the keyboard, video, and mouse feature. Ownership of the keyboard, video, and mouse cannot be transferred to those blade servers.

vChanging ownership of the CD-ROM drive and USB ports. (The CD-ROM drive in the BladeCenter T unit is viewed as a USB device by the blade server operating system.)

vActivating On Demand blade servers.

vSetting the active color of the critical (CRT) and major (MJR) alarm LEDs

You also can use the management and configuration program to view some of the blade server configuration settings. See “Management and configuration program” on page 26 for more information.

24 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Setting up the remote connection

To configure and manage the BladeCenter T unit and blade servers, you must first set up the remote connection through an Ethernet port on the LAN module. The LAN module is on the rear of the BladeCenter T unit at the top-right side.

KVM module

 

 

 

LAN module

 

TOP D

 

TOP D

 

 

 

2

1

 

 

 

 

Alarms

 

 

CRT

MNR

 

 

 

MJR

 

 

 

2

4

 

 

 

 

 

 

1

3

 

BTM E

 

BTM E

 

Cabling the Ethernet port

You can connect to an Ethernet port directly from a personal computer (PC) using a cross-over cable, or you can make the connection through an Ethernet switch.

The right Ethernet port on the LAN module is driven by management module 1, and the left Ethernet port of the LAN module is driven by management module 2.

Rear of BladeCenter T type 8730 unit

192.168.70.125

 

TOP D

TOP D

 

 

2

1

 

 

 

Alarms

 

2

4

 

 

 

 

1

3

 

BTM E

BTM E

 

LAN module

192.168.70.155

RJ-45 connector

192.168.70.135

Standard

Ethernet cables

Cross-over

Ethernet switch

Ethernet cable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connect directly to PC

Connect through an Ethernet switch

Chapter 2. Configuring the BladeCenter T unit 25

Complete the following steps to connect the Ethernet cable to the management module.

1.Connect one end of a Category 5 or higher Ethernet cable to an Ethernet connector on the LAN module. Connect the other end of an Ethernet cable to the network.

2.Check the Ethernet LEDs to make sure that the network connection is working. The following illustration shows the locations of the Ethernet LEDs on the LAN module.

2 1

Alarms

Ethernet link

Ethernet activity

Ethernet link LED

When this green LED is lit, there is an active connection through the port to the network.

Ethernet activity LED

When this green LED is flashing, it indicates that there is activity through the port over the network link.

Management and configuration program

This section provides the instructions for setting up and using the management and configuration program in the management module.

Setting up the management and configuration program

Complete the following steps to set up the management and configuration program:

1.Connect a PC to the BladeCenter T management network.

2.At initial power-on, the management module configures the Ethernet port connection in one of the following ways:

v If you have an accessible, active, and configured dynamic host configuration protocol (DHCP) server on the network, the host name, IP address, gateway address, subnet mask, and DNS server IP address are set automatically.

vIf the DHCP server does not respond within 2 minutes after the port is connected, the management module uses a default IP address of 192.168.70.125 and subnet mask of 255.255.255.0.

Either of these actions enables the Ethernet to assign a connection.

If you cannot communicate with a replacement management module through the Web interface. Press the IP reset button on the front of the management module to set the management module to the factory default IP addresses; then, access the management module using the factory IP address (see “Setting up the management and configuration program” for the factory IP addresses) and configure the management module.

Note: If the IP configuration is assigned by the DHCP server, the network administrator can query the MAC address of the management-module network interface on the DHCP server to determine what IP address and host name are assigned.

26 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Starting the management and configuration program

Complete the following steps to start the management and configuration program:

1.Open a Web browser. In the address or URL field, type the IP address or host name that is defined for the management-module remote connection (see “Setting up the management and configuration program” on page 26 for more details).

The Enter Network Password window opens.

2.Type your user name and password. If you are logging in to the management module for the first time, you can obtain your user name and password from your system administrator. All login attempts are documented in the event log.

Note: The initial user ID and password for the management module are as follows:

vUser ID: USERID (all capital letters)

vPassword: PASSW0RD (note the zero, not O, in PASSW0RD)

3.Follow the instructions that appear on the screen. Be sure to set the timeout value that you want for your Web session.

The BladeCenter T management and configuration window opens.

Note: The upper left corner of the management and configuration window shows the location and identity of the active management module.

Chapter 2. Configuring the BladeCenter T unit 27

Setting management and configuration program options

From the management and configuration program main menu, you can select settings that you want to view or change.

The navigation pane (on the left side of the management module window) contains navigational links that you use to manage the BladeCenter T unit and check the status of the components (modules and blade servers). The following information describes the choices that you have to configure the external Ethernet port on the management module, the internal Ethernet port on the management module, and the external management port on each I/O module. See the BladeCenter T Management Module User’s Guide on the BladeCenter T Documentation CD that comes with the BladeCenter T unit for a description of all the navigational links.

Configuring the external Ethernet port

Under MM Control, click Network Interfaces ” External Network Interface (eth0). This is the interface for the remote management and console port.

vSet Interface to Enabled to use the Ethernet connection.

vIf you plan to use redundant management modules and want both to use the same IP address, disable DHCP and configure and use a static IP address (the IP configuration information will be transferred to the redundant management

28 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

module automatically when needed). Otherwise, configure the DHCP setting as you prefer. You must configure the static IP address only if DHCP is disabled.

IP address - The IP address for the management module. The IP address must contain four integers from 0 through 255, separated by periods, with no spaces or consecutive periods. The default setting is 192.168.70.125.

Subnet mask - The subnet mask must contain four integers from 0 to 255, separated by periods, with no spaces. The default setting is 255.255.255.0

Gateway address - The IP address for your network gateway router. The gateway address must contain four integers from 0 through 255, separated by periods, with no spaces.

Configuring the internal Ethernet port

Under MM Control, click Network Interfaces ” Internal Network Interface (eth1). This interface communicates with the network-interface I/O modules, such as the Ethernet switch module or the Fibre Channel switch module.

vSpecify the IP address to use for this interface. The IP addresses for the internal Ethernet port (eth1) and external Ethernet port (eth0) must be on the same subnet.

v(Optional) Configure the locally-administered MAC address for this interface; the other fields (data rate, duplex mode, maximum transmission unit (MTU), and burned-in MAC address) are read-only.

Configuring management ports on I/O modules

Under I/O Module Tasks, click Management; then, click the bay number that corresponds to the I/O module that you are configuring.

vIn the New Static IP address fields, specify the IP address to use for this interface. The new static IP address must be on the same subnet as the internal network interface (eth1).

vClick Advanced Management ” Advanced setup. Enable the external ports.

vClick Advanced Management ” Advanced setup. (Optional) Enable external management.

Saving and restoring the configuration file

After you have configured the management module, you can save the configuration file to a drive attached to the system running the management-module Web interface. Then, if the configuration in the management module becomes damaged or if the management module is replaced, you can restore the saved configuration file to the management module. Use the management-module Web interface to save and restore the configuration file (MM Control ” Configuration File).

Configuring an I/O module

To connect any of the blade servers to the network, you must have an Ethernet switch module installed in I/O-module bay 1 or 2, or a pass-thru module in I/O-module bay 1 or 2 connected to an external Ethernet switch. If you have an I/O expansion option installed on one or more blade servers, you must have compatible I/O modules (switch modules or other compatible modules) in I/O module bays 3 or 4. See “Removing and installing I/O modules” on page 60 for information about the location and purpose of each I/O module.

What to configure

You must configure switch-module IP addresses and subnet masks through the management-module Web interface to communicate with the management module

Chapter 2. Configuring the BladeCenter T unit 29

and remote management station. This is in addition to the IP addresses that are configured on the management module. You might also have to use the user interface on the switch module to configure the switch external ports to operate in the correct link aggregation (trunking) mode, or to configure any VLANs or other special conditions.

To allow blade servers to communicate with the network, make sure that the External ports configuration item in the management module is set to Enabled. In the management-module Web interface, under I/O Module Tasks, click

Management ” Bay n ” Advanced Management ” Advanced Setup and enable the item (where n is the number of the I/O bay).

To access the user interface using external ports on the switch module, make sure that the External management over all ports configuration item is set to enabled. See your network administrator before enabling this feature.

Because all blade servers in the BladeCenter T unit share access to the external LAN through the switch ports, you can configure the ports on a switch module to operate together as an aggregate link, or trunk. An aggregate link provides more bandwidth than a single link to the attached LAN.

Notes:

1.The attaching LAN switch must have a compatible multiport trunk configuration.

2.Configure link aggregation before you attach cables between the external ports and your LAN equipment.

Configure the switch through the user interface on the switch module, which you can access through the Web interface to the management module (click I/O

Module Tasks ” Management ” Advanced Management ” Start Telnet/Web Session in the navigation pane).

Important: For a remote management station, such as a management server, to communicate with the switch modules in the BladeCenter T unit, the management port of the switch module must be on the same subnet as the management module.

Supporting Ethernet failover

To have the BladeCenter T unit support Ethernet failover on the blade servers, set up the BladeCenter T unit and blade servers as follows:

1.Configure the Ethernet controllers in one or more blade servers for failover (see the blade server documentation and the operating-system documentation for information). When failover occurs on a blade server, the secondary Ethernet controller takes over network communication, using the I/O module associated with that controller.

2.Install a switch module or a pass-thru module that is connected to external Ethernet switches in both I/O-module bays 1 and 2.

3.Configure the Ethernet switch modules and your network infrastructure so that they can direct traffic to the same destinations.

Configuring the Ethernet controllers in the blade servers

Note: The BladeCenter T unit does not include an Ethernet switch module; this is an optional feature that must be purchased separately. An Ethernet switch module or a pass-thru module is connected to an external Ethernet switch

30 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

must be installed in the BladeCenter T unit in I/O-module bay 1 or 2, or both, before the integrated Ethernet controllers on each blade server system board can be used.

The Ethernet controllers are integrated on each blade server system board. The Ethernet controllers provide 1-Gbps full-duplex capability only, which enables simultaneous transmission and reception of data to the external ports on the Ethernet switches. You do not need to set any jumpers or configure the controller for the blade server operating system. However, you must install a device driver on the blade server to enable the blade server operating system to address the Ethernet controller. For blade server device drivers and information about configuring the Ethernet controllers, see the Ethernet software CD that comes with your blade server.

BladeCenter T networking guidelines

Your networking administrator should assist in the configuration of the network infrastructure before you connect the BladeCenter T unit to a LAN switch or similar network device. This section provides additional guidelines that might be useful in setting up your system.

A BladeCenter T unit with two Ethernet switch modules and one management module has the internal configuration that is shown in the following illustration:

1 Gbps links

MAC

 

Switch A

1a

1

 

1b

 

2a

2

 

2b

 

3a

3

 

3b

 

4a

4

Mgmt

4b

 

5a

5

Mod

5b

6a

6

 

6b

 

7a

7

 

7b

 

 

 

8a

8

 

8b

Switch B

 

 

 

1 Gbps links

Note: 2nd switch module is optional

1 Gbps or

100 Mbps links

10/100 Mbps

100 Mbps links

Each blade server has two independent Ethernet controllers, each with its own MAC address and a dedicated 1 Gbps link to one of the switch modules in I/O module bays 1 and 2 (controller 1 to switch A and controller 2 to switch B in the illustration). In this configuration (the default), the blade servers share access to four external ports on each switch. There is no internal data path between the two switches within the BladeCenter T unit; an external network device is required for data packets to flow from one internal switch to the other.

The management module has a separate internal 100 Mbps link to each switch. These links are for internal management and control only. No data packets are allowed to flow from application programs on the blade servers to the management module over this path. A separate, nonswitched path (not shown) is used for communication between the management module and a service processor on each blade server.

Chapter 2. Configuring the BladeCenter T unit 31

A typical, preferred BladeCenter T network topology is shown in the following illustration. See the IBM Eserver BladeCenter T Planning and Installation Guide for more information and other topologies and guidelines.

MAC

 

Switch A

1a

1

 

1b

 

2a

2

 

2b

 

3a

3

 

3b

 

4a

4

Mgmt

4b

5a

5

Mod

5b

6a

6

 

6b

 

7a

7

 

7b

 

8a

8

 

8b

Switch B

 

 

MAC

 

Switch A

1a

1

 

1b

 

2a

2

 

2b

 

3a

3

 

3b

 

4a

4

Mgmt

4b

5a

5

Mod

5b

6a

6

 

6b

 

7a

7

 

7b

 

 

 

8a

8

 

8b

Switch B

 

 

 

MAC

 

Switch A

1a

1

 

1b

 

2a

2

 

2b

 

3a

3

 

3b

 

4a

4

Mgmt

4b

 

5a

5

Mod

5b

6a

6

 

6b

 

7a

7

 

7b

 

8a

8

 

8b

Switch B

 

 

Multiport aggregation group 1 Gbps or 100 Mbps links

L2 Switch

10/100 Mbps management links

L2+ Switch

Dual external switches

L2+ Switch

IBM Director

-Chassis management

-Application deployment

-Internal switches

Establishment backbone

Network administrator

-Infrastructure management

-Network hardware and software

In this configuration, each BladeCenter T unit contains two Ethernet switch modules and one management module. The external ports on the switch modules are configured for multiport link aggregation groups, or trunks, as are the corresponding ports on the attached external LAN switches. Additionally, every port in the switch module in I/O-module bay 1 (switch A in this illustration) in the BladeCenter T units is connected to the same external LAN switch, and every port in the switch module in I/O-module bay 2 (switch B in this illustration) in the BladeCenter T units is connected to another external LAN switch.

Observe the following guidelines when creating this topology:

1.The external ports on the BladeCenter T switch modules are designed for point-to-point, full-duplex operation to a compatible LAN switch or router. Configure a corresponding multiport link aggregation group, or trunk, in both the switch module and the attached LAN switch before installing the cables. The connection options are as follows, in order of preference:

v Multiport link aggregation group or trunk, 1 Gbps (1000 Mbps) per port

vSingle-uplink port, 1 Gbps

vMultiport link aggregation group or trunk, 100 Mbps per port

2.Connect the management-module 10/100 Mbps Ethernet port to a separate layer 2 network for security. If a separate network is not available, you can attach the Ethernet ports of the management module and switch modules to the same layer 2 network.

32 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

3.Avoid network configurations that could lead to data loops, if possible. Loops will be created if you connect multiple ports from the same switch module to the same layer 2 network device without first enabling link aggregation. If you implement configurations that include data loops, you must enable Spanning Tree Protocol on the switch-module external ports.

Using Remote Deployment Manager Version 4.11 Update 3 or later

You can use the Remote Deployment Manager (RDM) Version 4.11 Update 3 (or later) program to install a supported Microsoft Windows® operating system or a BIOS update onto a blade server. Follow the instructions in the documentation that comes with the RDM program to install a supported Microsoft Windows operating system, supported Red Hat Advanced server 2.1, or BIOS code update.

Go to the following Web site for updated information about the RDM program and information about how to purchase the software or download an update: http://www.ibm.com/pc/ww/eserver/xseries/systems_management/sys_migration/ rdm.html

Using IBM Director

For a complete list of operating systems that support IBM Director, see the IBM Director compatibility document. This document is in PDF http://www.ibm.com/ servers/eserver/xseries/systems_management/sys_migration/ibmdiragent.html. This document is updated every 6 to 8 weeks.

The IBM Director program is a systems-management product. Through the remote connection on the management module, you can use IBM Director on a management console to configure the BladeCenter T unit, modify the configuration, and set up more advanced features.

Notes:

1.Some tasks, such as software distribution, require an in-band connection from IBM Director Server through a campus (public) LAN to a switch-module port.

2.See the IBM Support Web site at http://www.ibm.com/support/ for the version of IBM Director software that you can use to manage redundant management modules.

Communicating with the IBM Director software

For a complete list of operating systems that support IBM Director, see the IBM Director compatibility document. This document is in PDF at http://www.ibm.com/ servers/eserver/xseries/systems_management/sys_migration/ibmdiragent.html. It is updated every 6 to 8 weeks.

Note: See the illustration on page 32 for an example of a typical network configuration. See the IBM Eserver BladeCenter T Planning and Installation Guide for more examples of network configurations. You can obtain the planning guide from http://www.ibm.com/support/.

To communicate with the BladeCenter T unit, the IBM Director software needs a managed object (in the Group Contents pane of the IBM Director Management Console main window) that represents the BladeCenter T unit. If the BladeCenter T management-module IP address is known, the network administrator can create an IBM Director managed object for the unit. If the IP address is not known, the IBM

Chapter 2. Configuring the BladeCenter T unit 33

Director software can automatically discover the BladeCenter T unit (out-of-band, using the Ethernet port on the management module) and create a managed object for the unit.

For the IBM Director software to discover the BladeCenter T unit, your network must initially provide connectivity from the IBM Director server to the BladeCenter T management-module Ethernet port. To establish connectivity, the management module attempts to use DHCP to acquire its initial IP address for the Ethernet port. If the DHCP request fails, the management module uses a static IP address. Therefore, the DHCP server (if used) must be on the management LAN for the BladeCenter T unit.

Notes:

1.All management modules are preconfigured with the same static IP address. You can use the management-module Web interface to assign a new static IP address for each BladeCenter T unit. If DHCP is not used and you do not assign a new static IP address for each BladeCenter T unit before attempting to communicate with the IBM Director software, only one BladeCenter T unit at a time can be added onto the network for discovery. Adding multiple units to the network without a unique IP address assignment for each BladeCenter T unit results in IP address conflicts.

2.For switch communication with the IBM Director server through the management-module external Ethernet port, the switch-module internal network interface and the management-module internal and external interfaces must be on the same subnet.

34 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Chapter 3. Diagnostics

This section provides basic troubleshooting information to help you resolve some common problems that might occur with your BladeCenter T unit.

If you cannot locate and correct the problem using the information in this section, see Appendix A, “Getting help and technical assistance,” on page 111 for more information.

Diagnostic tools overview

The following tools are available to help you identify and solve hardware-related problems:

vTroubleshooting charts

These charts list problem symptoms and steps to correct the problems. See the Chapter 6, “Symptom-to-FRU index,” on page 89 for more information.

vDiagnostic programs and error messages

The built-in self-test (BIST) program checks the BladeCenter T unit during startup and generates error messages if problems are found.

The system diagnostic program, Real Time Diagnostics Version 1.3, tests the major components of your BladeCenter T unit. The Real Time Diagnostics software is available from the IBM Support Web site at http://www.ibm.com/pc/ support. It is run from the IBM Director Management Console window (under the BladeCenter T task in the Task panel).

To obtain the Real Time Diagnostics program, go to the following Web site: http://www.ibm.com/pc/support, and complete the following steps:

1.Select Servers from the list at the left of the window.

2.Select Downloadable files from the list at the left of the window.

3.In the Downloadable files by category list, select Diagnostic.

4.Click the entry for Real Time Diagnostics, and follow the instructions on that page.

vLight Path Diagnostics feature

Use the Light Path Diagnostics feature to identify system errors quickly. On the BladeCenter T unit, the Light Path Diagnostics feature consists of the LEDs on the front and rear of the BladeCenter T unit and on the front of the modules and blade servers.

Identifying problems using the Light Path Diagnostics feature

If the system-error LED on the system LED panel on the front or rear of the BladeCenter T unit is lit, one or more error LEDs on the BladeCenter T components also might be on. These LEDs help identify the cause of the problem.

This section provides the information to identify problems that might arise during installation using the Light Path Diagnostics feature.

To locate the actual component that caused the error, you must locate the lit error LED on that component.

© Copyright IBM Corp. 2004

35

For example:

A system error has occurred, and you have noted that the BladeCenter T system-error LED is lit on the system LED panel. You then locate the module or blade server that also has an error LED lit (see “BladeCenter T unit power, controls, and indicators” on page 19 for the location of error LEDs; see the documentation that comes with your blade server for the location of error LEDs on the blade). If the component is a module, replace the module. If the component is a blade server with its system-error LED lit, follow the instructions in the documentation that comes with the blade server to isolate and correct the problem.

36 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

Chapter 4. Setting up the BladeCenter T hardware

This chapter provides instructions for setting up the BladeCenter T unit and installing and removing modules, options, and blade servers.

Setting up the BladeCenter T unit

Statement 20:

CAUTION:

To avoid personal injury, before lifting the unit, remove all the blades to reduce the weight.

Statement 4:

≥ 18 kg (39.7 lb)

≥ 32 kg (70.5 lb)

≥ 55 kg (121.2 lb)

CAUTION:

Use safe practices when lifting.

Install the BladeCenter T unit in a rack before installing any blade servers in the BladeCenter T unit. If your BladeCenter unit has blade servers already installed, remove them first. Detailed instructions for installing and cabling a BladeCenter T unit in a rack are in the Rack Installation Instructions that come with the BladeCenter T unit.

Installation guidelines

This section includes guidelines for:

vPreparing and making ac or dc power connections before installing the BladeCenter T modules, options, and blade servers.

vSystem reliability considerations.

vHandling static-sensitive devices and the use of the electro-static discharge (ESD) connector.

© Copyright IBM Corp. 2004

37

Before you begin to install options in the BladeCenter T unit, read the following information:

vRead the safety information beginning on page 113 and the guidelines in “Handling static-sensitive devices” on page 40. This information will help you work safely with your BladeCenter T unit and options.

vBlue on a component indicates touch points, where you can grip the component to remove it from or install it in the server, open or close a latch, and so on.

vOrange on a component or an orange label on or near a component indicates that the component can be hot-swapped, which means that you can remove or install the component while the BladeCenter T unit is running. (Orange can also indicate touch points on hot-swap components.) See the instructions for removing or installing a specific hot-swap component for any additional procedures that you might have to perform before you remove or install the component.

vYou do not need to disconnect the BladeCenter T unit from power to install or replace any of the hot-swap modules in the BladeCenter T unit. You need to shut down the operating system and turn off a hot-swap blade server on the front of the BladeCenter T unit before removing the blade server, but you do not need to shut down the BladeCenter T unit itself.

vFor a list of supported options for your server, go to http://www.ibm.com/pc/ compat/.

Preparing for system power

There a number of basic differences in preparing for system power between the

Type 8720 (dc power) and Type 8730 (ac power) units.

Type 8720 (dc power)

The BladeCenter T unit does not have a power switch. The BladeCenter Type 8720 (dc power) unit has two dc-power terminal connectors each powering two power modules. The left connection (looking from the rear) supplies power to power-module bays 2 and 4, while the connection on the right supplies power to power-module bays 1 and 3.

Each dc terminal has four #M6 (1/4 in.) studs, one for -48 V dc, one for RETURN, and two for connecting the safety ground wire. The following guidelines are provided for connecting to the -48 V dc power source:

vDC wire rating of 4AWG (7x7x34/36 TC), 105C, 300V UL 10198, CSA approved and VW1 rated.

vRing terminal designed for M6 stud, 4AWG wire, wire size (circular Mil area) of 33100-52600, and a wire insulation diameter of 12.8mm to 13.1mm.

Note: The actual wire gauge and ring terminal will be determined by the current draw and the length of the wire run or as specified by the customer premises guidelines.

vA two-lug ring terminal is required by NEBS for connecting the single safety ground wire.

Attention: Remove the power modules before installing the power connections. Once the power connections are in place, the power modules can be re-installed in the BladeCenter T unit.

After you connect power to the BladeCenter T unit, all the power-module bays receive power. The blade servers in the BladeCenter T unit are connected to dc power but are not turned on. Press the power-control button on the front of each blade server to obtain full power for the blade server and start its operating system

38 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

(see the documentation that comes with your blade server for information about turning on the blade server). Make sure that you shut down the blade-server operating system before turning off a blade server, to avoid damaging the hard disk drives.

Notes:

1.Within two minutes after power has been connected to the BladeCenter T unit, the management module applies power to the I/O modules.

2.If a power failure occurs, the BladeCenter T unit restarts automatically when power is restored.

3.The blade-server power button turns on or turns off the blade server if local power control has not been disabled through the management module.

4.The blade-server power button turns on the blade server only if the green power light on the blade server is flashing slowly. If the light flashes rapidly, the blade server has not yet synchronized with the management module and pressing the power button will have no effect.

Type 8730 (ac power)

The BladeCenter T unit can support two or four power modules.

The BladeCenter T unit does not have a power switch. To start the BladeCenter T Type 8730 (ac power) unit, connect one end of a power cord into input power connector 1 and 2 on the rear of the BladeCenter T unit, and the other end of each power cord into a 220-volt power distribution unit (PDU) that is connected into an appropriate electrical outlet.

There are four IEC320 power connectors on the rear of the Type 8730 (ac power) unit, marked 1-4 on the rear panel. Power is applied to the respective power module according to the numbering convention on the rear panel.

vPower connector 1 supplies power to power module 1

vPower connector 2 supplies power to power module 2

vPower connector 3 supplies power to power module 3

vPower connector 4 supplies power to power module 4

System reliability considerations

To help ensure proper cooling and system reliability, make sure that:

vEach of the module bays on the front and rear of the BladeCenter T unit has either a module or filler module installed.

vEach of the blade bays on the front of the BladeCenter T unit has either a blade server or filler blade installed.

vEach of the drive bays in a blade server storage expansion option has either a hot-swap drive or a filler panel installed.

vEach of the PCI slots in a blade server PCI I/O expansion option has either a PCI adapter or a PCI filler bracket installed

vA removed hot-swap module or drive is replaced within 1 minute of removal.

vA removed hot-swap blade is replaced within 20 minutes of removal.

vA failed blower is replaced as soon as possible, to restore cooling redundancy.

Chapter 4. Setting up the BladeCenter T hardware 39

Handling static-sensitive devices

Attention: Static electricity can damage electronic devices and your system. To avoid damage, keep static-sensitive devices in their static-protective packages until you are ready to install them.

Use an ESD wrist strap and the ESD connectors on the BladeCenter T unit. Electrostatic discharge (ESD) is the release of stored static electricity that can damage electric circuits. Static electricity is often stored in your body and discharged when you come in contact with an object with a different potential. The ESD wrist strap safely channels the electricity from your body to a proper ground (the BladeCenter T unit).

Use an ESD wrist strap whenever you are working on the BladeCenter T unit, especially when you are handling modules, options, and blade servers. To work properly, the wrist strap must have a good contact at both ends (touching your skin at one end and connected to the ESD connector on the front or back of the BladeCenter T unit.)

Location of ESD connector (front of unit)

CMM

CMM

1

2

 

ESD

ESD connector

E

SD

Location of ESD connector (rear of unit)

 

TOP D

 

TOP D

 

 

 

2

1

 

 

 

 

Alarms

 

 

CRT

MNR

 

 

 

MJR

 

 

 

2

4

 

 

 

 

 

 

1

3

 

BTM E

 

BTM E

 

ESD connector

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

40 BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide

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