IBM 8677 - BladeCenter Rack-mountable - Power... User manual

BladeCenterEType8677
Installation and User’s Guide


BladeCenterEType8677
Installation and User’s Guide


Note: Before using this information and the product it supports, read: the general information in Appendix C, “Notices,” on page 47;
the IBM Warranty Information document; and the IBM Safety Information and IBM Systems and Environmental Notices and User
Guide documents on the IBM Documentation CD.
Eighth Edition (July 2010)
© Copyright IBM Corporation 2010.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety ............................v
Chapter 1. Introduction ......................1
Locating and recording BladeCenter unit information ...........2
Features and specifications.....................3
The BladeCenter modules .....................5
Management modules......................5
I/O modules .........................6
Blade servers .........................7
Power modules ........................7
Blower modules ........................8
The IBM Documentation CD ....................8
Hardware and software requirements ................8
Using the Documentation Browser .................8
Related documentation ......................9
Notices and statements in this document ...............10
Major components of the BladeCenter E Type 8677 unit .........11
Chapter 2. BladeCenter unit power, controls, and indicators.......13
Supplying power to the BladeCenter unit ...............13
Disconnecting power from the BladeCenter unit .............13
BladeCenter components, controls, and LEDs .............14
Front view .........................14
Rear view ..........................16
Rear system LED panel ...................16
I/O module ........................16
Power module .......................17
Blower module .......................18
Management module.....................18
Chapter 3. Installing the BladeCenter unit and options .........19
Installation checklist .......................19
Installation guidelines ......................20
System reliability guidelines ...................20
Handling static-sensitive devices .................20
Installing and removing modules ..................21
Installing a module ......................21
Removing a module ......................23
Installing and removing a blade server ................24
Installing and removing the blower module...............24
Installing an optional acoustic attenuation module ............25
Removing an optional acoustic attenuation module ...........26
Completing the installation.....................26
Chapter 4. Configuration and networking guidelines ..........29
Configuring the BladeCenter unit ..................29
Configuring the management module................29
Configuring I/O modules ....................29
Configuring blade servers ....................29
BladeCenter networking guidelines .................30
Chapter 5. IBM Director .....................31
© Copyright IBM Corp. 2010 iii

Chapter 6. Shared BladeCenter resources ..............33
Chapter 7. Solving problems ...................35
Diagnostic tools overview .....................35
Troubleshooting tables ......................35
Monitor problems .......................36
Power problems .......................37
Management-module problems ..................37
Blower module problems ....................37
Optional device problems ....................37
LEDs ............................38
Diagnosing problems using diagnostic LEDs .............38
Diagnostic LEDs .......................39
Appendix A. BladeCenter management module configuration worksheet 41
Appendix B. Getting help and technical assistance ..........45
Before you call .........................45
Using the documentation .....................45
Getting help and information from the World Wide Web ..........45
Software service and support ...................46
Hardware service and support ...................46
IBM Taiwan product service ....................46
Appendix C. Notices ......................47
Trademarks ..........................47
Important notes.........................48
Particulate contamination .....................49
Documentation format ......................49
Electronic emission notices ....................50
Federal Communications Commission (FCC) statement .........50
Industry Canada Class A emission compliance statement ........50
Avis de conformité à la réglementation d'Industrie Canada ........50
Australia and New Zealand Class A statement ............50
European Union EMC Directive conformance statement .........50
Germany Class A statement ...................51
Deutschland: Einhaltung des Gesetzes über die elektromagnetische
Verträglichkeit von Geräten .................51
Zulassungsbescheinigung laut dem Deutschen Gesetz über die
elektromagnetische Verträglichkeit von Geräten (EMVG) (bzw. der EMC
EG Richtlinie 2004/108/EG) für Geräte der Klasse A ........51
Japan VCCI Class A statement ..................52
Japan Electronics and Information Technology Industries Association (JEITA)
statement .........................52
Korea Communications Commission (KCC) statement .........52
Russia Electromagnetic Interference (EMI) Class A statement.......52
People's Republic of China Class A electronic emission statement .....53
Taiwan Class A compliance statement ...............53
Power cords ..........................53
Index ............................55
iv BladeCenter E Type 8677: Installation and User’s Guide

Safety
Before installing this product, read the Safety Information.
Antes de instalar este produto, leia as Informações de Segurança.
Pred instalací tohoto produktu si prectete prírucku bezpecnostních instrukcí.
Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.
Avant d'installer ce produit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.
Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.
Antes de instalar este produto, leia as Informações sobre Segurança.
© Copyright IBM Corp. 2010 v

Antes de instalar este producto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
All caution and danger statements in this documentation begin with a number. This
number is used to cross reference an English caution or danger statement with
translated versions of the caution or danger statement in the IBM Safety Information
book.
For example, if a caution statement begins with a number 1, translations for that
caution statement appear in the IBM Safety Information book under statement 1.
Be sure to read all caution and danger statements in this documentation before
performing the instructions. Read any additional safety information that comes with
your server or optional device before you install the device.
Statement 1:
DANGER
Electrical current from power, telephone, and communication cables is
hazardous.
To avoid a shock hazard:
vDo not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical
storm.
vConnect all power cords to a properly wired and grounded electrical
outlet.
vConnect to properly wired outlets any equipment that will be attached to
this product.
vWhen possible, use one hand only to connect or disconnect signal
cables.
vNever turn on any equipment when there is evidence of fire, water, or
structural damage.
vDisconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
vConnect and disconnect cables as described in the following table when
installing, moving, or opening covers on this product or attached
devices.
To Connect: To Disconnect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
1. Turn everything OFF.
2. First, remove power cords from outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
vi BladeCenter E Type 8677: Installation and User’s Guide

Statement 2:
CAUTION:
When replacing the lithium battery, use only IBM Part Number 33F8354 or an
equivalent type battery recommended by the manufacturer. If your system has
a module containing a lithium battery, replace it only with the same module
type made by the same manufacturer. The battery contains lithium and can
explode if not properly used, handled, or disposed of.
Do not:
vThrow or immerse into water
vHeat to more than 100°C (212°F)
vRepair or disassemble
Dispose of the battery as required by local ordinances or regulations.
Statement 3:
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or
transmitters) are installed, note the following:
vDo not remove the covers. Removing the covers of the laser product could
result in exposure to hazardous laser radiation. There are no serviceable
parts inside the device.
vUse of controls or adjustments or performance of procedures other than
those specified herein might result in hazardous radiation exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view directly
with optical instruments, and avoid direct exposure to the beam.
Class 1 Laser Product
Laser Klasse 1
Laser Klass 1
Luokan 1 Laserlaite
Appareil A Laser de Classe 1
`
Safety vii

Statement 4:
≥18 kg (39.7 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)
CAUTION:
Use safe practices when lifting.
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 cable. To remove all electrical current
from the device, ensure that all power cables are disconnected from the
power source.
1 2
Statement 6:
CAUTION:
If you install a strain-relief bracket option over the end of the power cord that
is connected to the device, you must connect the other end of the power cord
to an easily accessible power source.
viii BladeCenter E Type 8677: Installation and User’s Guide

Statement 8:
CAUTION:
Never remove the cover on a power supply or any part that has the following
label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts inside
these components. If you suspect a problem with one of these parts, contact
a service technician.
Statement 12:
CAUTION:
The following label indicates a hot surface nearby.
Statement 13:
DANGER
Overloading a branch circuit is potentially a fire hazard and a shock hazard
under certain conditions. To avoid these hazards, ensure that your system
electrical requirements do not exceed branch circuit protection
requirements. Refer to the information that is provided with your device for
electrical specifications.
Safety ix

Statement 20:
CAUTION:
To avoid personal injury, before lifting the unit, remove all the blades to
reduce the weight.
Statement 21:
CAUTION:
Hazardous energy is present when the blade is connected to the power
source. Always replace the blade cover before installing the blade.
This device is intended for use with UL Listed IBM BladeCenter products.
xBladeCenter E Type 8677: Installation and User’s Guide

Chapter 1. Introduction
The IBM®BladeCenter®E Type 8677 unit is a high-density, high-performance
rack-mounted server system. The BladeCenter unit provides up to 14 bays for blade
servers and other BladeCenter devices, integrating common resources that are
shared by the blade servers. The use of common resources provides a small
server-system footprint that contains high-performing servers with minimal cabling.
Note: Unless otherwise stated, references to the BladeCenter unit apply to any
IBM BladeCenter units. The illustrations in this document might differ slightly
from your hardware.
The BladeCenter unit provides the following common resources:
vHot-swap blade-server bays on the front of the BladeCenter unit and hot-swap
module bays on the rear of the BladeCenter unit. You can add, remove, or
replace blade servers, management modules, I/O modules, power modules, and
blower modules in hot-swap bays without removing power from the BladeCenter
unit.
vA midplane that is connected to all BladeCenter components.
vOne or two management modules that perform system-management functions.
vPower modules that provide redundant power for all BladeCenter components.
There are four power modules that operate in redundant pairs. Each pair
provides power to selected BladeCenter components.
vBlowers that provide cooling for all BladeCenter components. There are two
blower modules.
vFour input/output (I/O) module bays that support external network interface
connections to network resources and other devices.
vA media tray that contains an optical drive (such as a CD or DVD drive) and a
Universal Serial Bus (USB) port that can be assigned to any blade server.
This Installation and User’s Guide provides information about the following tasks:
vDefining and recording your BladeCenter network configuration information
vInstalling and cabling the BladeCenter unit
vInstalling basic BladeCenter unit optional devices:
– Management module
– I/O module
– Blade server
vPerforming basic troubleshooting of the BladeCenter unit
Packaged with the Installation and User’s Guide are software CDs that help you to
configure and manage the Type 8677 BladeCenter unit.
The BladeCenter comes with a limited warranty. For information about the terms of
the warranty and getting service and assistance, see the Warranty and Support
Information document for your BladeCenter on the IBM Documentation CD.
You can obtain up-to-date information about your BladeCenter and other IBM server
products at http://www.ibm.com/bladecenter/
© Copyright IBM Corp. 2010 1

Locating and recording BladeCenter unit information
Record information about your BladeCenter unit in the following table. You will need
this information for future reference.
Product name BladeCenter E
Machine type 8677
Model number _____________________________________________
Serial number _____________________________________________
The serial number and model number are on labels on the top, front, and rear of
the chassis, as shown in the following illustration.
A set of blank labels comes with each blade server. Record all identifying
information on a label and place it on the BladeCenter bezel, just below the blade
server, as shown in the following illustration. Do not place the label on the blade
server itself or in any way block the ventilation holes on the blade server.
2BladeCenter E Type 8677: Installation and User’s Guide

Features and specifications
Current BladeCenter E models do not have a diskette drive in the media tray. Older
BladeCenter E models do have a diskette drive in the media tray. A separate
features and specifications table is provided for each of these model types.
Notes:
1. For information about which types of I/O modules can be installed in which
I/O-module bays, see “I/O modules” on page 6.
2. The operating system in the blade server must provide USB support for the
blade server to recognize and use the keyboard, mouse, and optical drive. The
BladeCenter unit uses USB for internal communication with these devices.
The following table provides a summary of the features and specifications for
BladeCenter E Type 8677 units currently available. These models do not have a
diskette drive bay in the media tray.
Media tray (on front):
vSATA CD/DVD drive
vUSB v2.0 port
vFront system LED panel
Module bays (on rear):
vFour hot-swap power-module bays
vTwo hot-swap management-module
bays
vFour hot-swap I/O-module bays
vTwo hot-swap blower bays
Blade-server bays (on front):
14 hot-swap blade-server bays
Redundant cooling:
Two variable-speed hot-swap blowers
Power modules:
vMinimum: Two 2000-watt or greater
hot-swap power modules
– Both power modules supply power
to all modules and to blade-server
bays 1 through 6.
– Both power modules provide
redundancy to each other.
vMaximum: Four
– Power modules 1 and 2 supply
power to all modules and to
blade-server bays 1 through 6.
– Power modules 3 and 4 supply
power to blade-server bays 7
through 14.
– Power modules 1 and 2 provide
redundancy to each other.
– Power modules 3 and 4 provide
redundancy to each other.
I/O modules:
vMinimum: One
vMaximum: Four
Management module:
vMinimum: One hot-swap advanced
management module providing the
following features:
– System-management functions for
the BladeCenter unit
– Video port (analog)
– Two USB ports for keyboard and
mouse
– Serial management connection
– 10/100 Mb Ethernet remote
management connection
vMaximum: Two hot-swap advanced
management modules: one active, one
redundant
Upgradeable microcode:
vManagement-module firmware
vI/O-module firmware (some I/O module
types)
vBlade-server firmware
Security features:
vLogin password for remote connection.
vSecure Socket Layer (SSL) security for
Web interface access, Secure Shell
(SSH) for remote command-line access,
and Lightweight Directory Access
Protocol (LDAP) and role-based security
for user authentication and
authorization.
Size (7 U):
vHeight: 304.2 mm (12 in. or 7 U)
vDepth: 711.2 mm (28 in.)
vWidth: 444 mm (17.5 in.)
vWeight:
– Fully configured with modules and
blade servers: Approximately 102 kg
(225 lb)
– Fully configured without modules and
blade servers: Approximately 38.6 kg
(85 lb)
Acoustical noise emissions:
vWithout acoustic attenuation module: Sound
power, operating, and idle: 7.4 bels
vWith acoustic attenuation module: Sound
power, idle, and operating: 6.9 bels
Environment:
vAir temperature:
– On:
- Altitude: 0 to 914 m (3000 ft) - 10° to
35°C (50° to 95°F)
- Altitude: 914 m to 2134 m (3000 ft to
7000 ft) - 10° to 32°C (50° to 89.6°F)
– Off: -40° to 60°C (-40° to 140°F).
vHumidity: 8% to 80%
Electrical input:
vSine-wave input (50-60 Hz single-phase)
required
vInput voltage:
– Minimum: 200 V ac
– Maximum: 240 V ac
Heat output:
Approximate heat output in British thermal
units (Btu) per hour:
vMinimum configuration: 1365 Btu/hour (400
watts)
vMaximum configuration: Varies depending
on the type of power modules installed.
– Four 2000-watt power modules: 20 094
Btu/hour (5889 watts)
– Four 2320-watt power modules: 23 672
Btu/hour (6938 watts)
Chapter 1. Introduction 3

The following table provides a summary of the features and specifications for older
BladeCenter Type 8677 models. These models have a diskette drive bay in the
media tray.
Media tray (on front):
vDiskette drive: 1.44 MB
vIDE CD or DVD
vUSB v1.1 port
vFront system LED panel
Module bays (on rear):
vFour hot-swap power-module bays
vTwo hot-swap management-module
bays
vFour hot-swap I/O-module bays
vTwo hot-swap blower bays
Blade-server bays (on front):
14 hot-swap blade-server bays
Redundant cooling:
Two variable-speed hot-swap blowers
Power modules:
vMinimum: Two hot-swap power
modules
– Both power modules supply power
to all modules and to blade-server
bays 1 through 6.
– Both power modules provide
redundancy to each other.
vMaximum: Four
– Power modules 1 and 2 supply
power to all modules and to
blade-server bays 1 through 6.
– Power modules 3 and 4 supply
power to blade-server bays 7
through 14.
– Power modules 1 and 2 provide
redundancy to each other.
– Power modules 3 and 4 provide
redundancy to each other.
I/O modules:
vMinimum: One
vMaximum: Four
Management module:
vMinimum: One hot-swap management
module providing the following features:
– System-management functions for
the BladeCenter unit
– Video port (analog)
– Keyboard connection (PS/2 port or
USB port depending on the
management module-type)
– Mouse connection (PS/2 port or USB
port depending on the management
module type)
– Serial management connection
(advanced management module
only)
– 10/100 Mb Ethernet remote
management connection
vMaximum: Two hot-swap management
modules: one active, one redundant
Upgradeable microcode:
vManagement-module firmware
vI/O-module firmware (some I/O module
types)
vBlade-server firmware
Security features:
vLogin password for remote connection.
vSecure Socket Layer (SSL) security for
Web interface access, Secure Shell
(SSH) for remote command-line access,
and Lightweight Directory Access
Protocol (LDAP) and role-based security
for user authentication and
authorization.
Size (7 U):
vHeight: 304.2 mm (12 in. or 7 U)
vDepth: 711.2 mm (28 in.)
vWidth: 444 mm (17.5 in.)
vWeight:
– Fully configured with modules and
blade servers: Approximately 102 kg
(225 lb)
– Fully configured without modules and
blade servers: Approximately 38.6 kg
(85 lb)
Acoustical noise emissions:
vWithout acoustic attenuation module: Sound
power, operating, and idle: 7.4 bels
vWith acoustic attenuation module: Sound
power, idle, and operating: 6.9 bels
Environment:
vAir temperature:
– On:
- Altitude: 0 to 914 m (3000 ft) - 10° to
35°C (50° to 95°F)
- Altitude: 914 m to 2134 m (3000 ft to
7000 ft) - 10° to 32°C (50° to 89.6°F)
– Off: -40° to 60°C (-40° to 140°F).
vHumidity: 8% to 80%
Electrical input:
vSine-wave input (50-60 Hz single-phase)
required
vInput voltage:
– Minimum: 200 V ac
– Maximum: 240 V ac
Heat output:
Approximate heat output in British thermal
units (Btu) per hour:
vMinimum configuration: 1365 Btu/hour (400
watts)
vMaximum configuration: Varies depending
on the type of power modules installed.
– Four 1200-watt power modules: 9622
Btu/hour (2820 watts)
– Four 1400-watt power modules: 11 111
Btu/hour (3256 watts)
– Four 1800-watt power modules: 13 650
Btu/hour (4000 watts)
– Four 2000-watt power modules (for use
with a Gigabit Ethernet expansion card):
18 425 Btu/hour (5400 watts)
4BladeCenter E Type 8677: Installation and User’s Guide

The BladeCenter modules
The BladeCenter unit contains the following hot-swap modules:
vManagement modules
vI/O modules
vBlade servers
vPower modules
vBlower modules
See “Front view” on page 14 and “Rear view” on page 16 for the location of each
module.
The BladeCenter unit and the active management module make optional I/O
devices (CD/DVD drive, USB port, keyboard, video, and mouse) available to all the
blade servers, selected by any one blade server at a time.
Management modules
The BladeCenter unit comes with at least one hot-swap management module in
management-module bay 1. An optional second management module in
management-module bay 2 provides management redundancy. The management
modules are hot-swap BladeCenter modules that you use to configure and manage
all installed BladeCenter components.
The type of management modules that are installed in your BladeCenter unit
depends on the BladeCenter unit model and devices that are installed. When two
modules are installed they must be the same type.
vA BladeCenter unit that has a media tray with a diskette drive can use either
management modules or advanced management modules, depending on which
devices are installed in the BladeCenter unit.
vA BladeCenter unit that has a media tray without a diskette drive must use
advanced management modules.
vIf 2320-watt power modules are installed in the BladeCenter unit, you must use
advanced management modules.
vSee the documentation that comes with your BladeCenter device to determine if
specific management modules are required to support the device.
See the User's Guide or the Command-Line Interface Reference Guide for your
management module type for more information.
Chapter 1. Introduction 5

I/O modules
The BladeCenter unit supports from one to four hot-swap I/O modules. Table 1
identifies the type of I/O module you can install in each I/O-module bay. See
http://www.ibm.com/support/ for a list of supported I/O modules. See “Rear view” on
page 16 for the location of the I/O-module bays on the BladeCenter unit.
Table 1. Hot-swap I/O-module types by location
Bays I/O-module function Permissible I/O module
1 and 2 Network connections 1 and 2
(Ethernet) are used for all
blade servers in the
BladeCenter unit.
One of the following combinations:
vTwo Ethernet switch modules
vTwo pass-thru modules
vOne Ethernet switch module and one
pass-thru module
3 and 4 Network connections 3 and 4
are used for all I/O expansion
options on blade servers in
the BladeCenter unit.
One of the following combinations:
vTwo Ethernet switch modules
vTwo Fibre Channel switch modules
vTwo pass-thru modules
Important:
vThe modules that are used must support the
network interface that is used on the I/O
expansion options.
vThe I/O modules in bays 3 and 4 must be
the same type.
Notes:
1. The enumeration of the Ethernet controllers in a blade server is
operating-system dependent. You can verify the Ethernet controller designations
that a blade server uses through your operating-system settings.
2. The routing of an Ethernet controller to a particular I/O-module bay depends on
the type of blade server. You can verify which Ethernet controller is routed to
which I/O-module bay by using the following test:
a. Install only one Ethernet switch module or pass-thru module, in I/O-module
bay 1.
b. Make sure that the ports on the switch module or pass-thru module are
enabled. See the management-module User’s Guide for instructions.
c. Enable only one of the Ethernet controllers on the blade server. Note the
designation that the blade-server operating system has for the controller.
d. Ping an external computer on the network that the switch module or
pass-thru module is connected to.
If you can ping the external computer, the Ethernet controller that you enabled
is associated with the I/O module in I/O-module bay 1. The other Ethernet
controller in the blade server is associated with the I/O module in I/O-module
bay 2.
Your BladeCenter unit supports a minimum of one hot-swap Ethernet switch module
or pass-thru module, in I/O-module bay 1 or 2. This I/O module provides an internal
connection to an integrated Ethernet controller in all the blade servers in the
BladeCenter unit, up to 14 internal connections per I/O module. To provide an
internal connection for the second integrated Ethernet controller in each blade
server, install an Ethernet switch module or pass-thru module in the available
I/O-module bay (I/O-module bay 1 or bay 2).
6BladeCenter E Type 8677: Installation and User’s Guide

Similarly, the BladeCenter unit supports two additional I/O modules in I/O-module
bays 3 and 4. Each of these I/O modules provides an internal connection to one of
the two network-interface controllers on all the I/O-expansion options that are
installed in blade servers in the BladeCenter unit. The I/O module must be
compatible with the network interface on all the I/O-expansion options. For example,
if you install a Fibre Channel I/O expansion option in a blade server, the I/O
modules that you install in I/O-module bays 3 and 4 must be Fibre Channel switch
modules or pass-thru modules.
Notes:
1. Because of electromagnetic interference (EMI), no more than two four-port 1 Gb
Ethernet switch modules can be installed in the BladeCenter unit. You can mix
four-port 1 Gb Ethernet switch modules with other supported Ethernet switch
modules to achieve the total number of Ethernet switch modules that you need
in the BladeCenter unit.
2. You can use a pass-thru module in any I/O-module bay, provided that the
associated controller in the blade servers or I/O expansion options is compatible
with it.
Blade servers
The BladeCenter unit provides 14 bays for blade servers or other BladeCenter
devices. A blade server is a hot-swap, independent server, with its own processors,
memory, storage, network controllers, operating system, and applications. The blade
server slides into a bay in the BladeCenter unit and shares power, blowers,
media-tray drives, switches, and ports with other blade servers.
Power modules
The BladeCenter unit comes with two to four hot-swap power modules.
The following table summarizes the application for each power module.
Bays Power module function
1 and 2 Provides power to all the BladeCenter modules and to blade bays 1 through 6
3 and 4 Provides power to blade bays 7 through 14
Power modules are not needed in bays 3 and 4 until you begin installing blade
servers and options in blade bays 7 through 14.
Note: If you install a blade server in blade bay 6 that spans two bays or that has
an attached expansion unit, power modules are required in all four power
bays.
Each pair of power modules is redundant, depending on power-management
settings. If either power module fails, the remaining power module continues to
supply power, but there is no redundancy; the failed power module must be
replaced as soon as possible.
Important:
1. The power modules in a pair must match each other in capacity (wattage).
2. For power redundancy, you must connect the power-module pairs (1 and 3, or 2
and 4) to different ac power sources that are controlled by separate circuit
breakers. For example, when one ac power source fails, the second ac power
source handles the power load for the BladeCenter unit.
Chapter 1. Introduction 7

Blower modules
The BladeCenter unit comes with two hot-swap blower modules for cooling
redundancy. The blower speeds vary depending on the ambient air temperature at
the front of the BladeCenter unit and the temperature of internal BladeCenter
components. If the ambient temperature is 22°C (72°F) or below, the BladeCenter
unit blowers will run at 30% of their maximum rotational speed, increasing their
speed as required to control internal BladeCenter temperature. If the ambient
temperature is above 22°C (72°F), the blowers will run at 80% of their maximum
rotational speed, increasing their speed as required to control the internal
BladeCenter unit temperature. If a blower fails, the remaining blower continues to
cool the BladeCenter unit and blade servers. Replace a failed blower as soon as
possible, to restore cooling redundancy. See the Hardware Maintenance Manual
and Troubleshooting Guide for instructions.
The IBM Documentation CD
You can run the IBM Documentation CD on any personal computer that meets the
hardware and software requirements.
The IBM Documentation CD contains documentation for your blade server in
Portable Document Format (PDF) and includes the IBM Documentation Browser to
help you find information quickly.
Hardware and software requirements
The IBM Documentation CD requires the following minimum hardware and
software:
vMicrosoft Windows NT, Windows 2000, or Red Hat Linux
v100 MHz microprocessor.
v32 MB of RAM.
vAdobe Acrobat Reader 3.0 (or later) or xpdf, which comes with Linux operating
systems.
Using the Documentation Browser
Use the Documentation Browser to browse the contents of the CD, read brief
descriptions of the documents, and view documents using Adobe Acrobat Reader or
xpdf. The Documentation Browser automatically detects the regional settings in use
in your system and displays the documents in the language for that region (if
available). If a document is not available in the language for that region, the
English-language version is displayed.
Use one of the following procedures to start the Documentation Browser:
vIf Autostart is enabled, insert the CD into the CD drive. The Documentation
Browser starts automatically.
vIf Autostart is disabled or is not enabled for all users, use one of the following
procedures:
– If you are using a Windows operating system, insert the CD into the CD drive
and click Start --> Run.IntheOpen field, type
e:\win32.bat
where eis the drive letter of the CD-ROM drive, and click OK.
8BladeCenter E Type 8677: Installation and User’s Guide