BladeCenter H Type 8852, 7989, and 1886
P roblem Dete rminatio n an d Se rvice Gui de
BladeCenter H Type 8852, 7989, and 1886
P roblem Dete rminatio n an d Se rvice Gui de
Note:
Before using this information and the product it supports, read: the general information in Appendix B, “Notices,” on page 63; 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.
Seventh Edition (September 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
Guidelines for trained service technicians ....vi
Inspecting for unsafe conditions ......vi
Guidelines for servicing electrical equipment . . vi
Safety statements ............vii
Chapter 1. Introduction ........1
Related documentation ...........1
Notices and statements in this document .....3
Features and specifications..........4
Controls, LEDs, and connectors ........5
Front view ..............5
Rear view ..............7
Supplying power to the BladeCenter unit.....9
Disconnecting power from the BladeCenter unit . . 9
Chapter 2. Diagnostics ........11
Diagnostic tools .............11
Troubleshooting tables...........12
Blade server problems ..........12
Blower module problems .........12
Fan pack problems ...........13
I/O module problems ..........13
Keyboard, mouse, or pointing-device problems 14
Management module problems .......14
Media tray problems ..........15
Monitor or video problems ........16
Power problems ............16
Light path diagnostic LEDs .........17
BladeCenter system LED panel .......17
Module LEDs.............18
Event log messages............19
Solving undetermined problems .......20
Calling IBM for service ..........21
Chapter 3. Parts listing ........23
Front view...............24
Rear view ...............26
Power cords ..............28
Chapter 4. Removing and replacing
BladeCenter components .......29
Installation guidelines ...........29
System reliability guidelines ........30
Handling static-sensitive devices ......30
Returning a device or component ......30
Removing and replacing Tier 1 CRUs......31
Removing a bezel ...........31
Installing a bezel ...........32
Removing and replacing the media tray and
optical drive or optical drive filler ......33
Removing and replacing a power module . . . 35
Removing and replacing a fan pack .....39
Removing a blade server .........41
Installing a blade server .........42
Removing an I/O module ........44
Installing an I/O module .........45
Removing a management module ......46
Installing a management module ......47
Removing and replacing a blower module . . . 48
Removing and replacing FRUs ........50
Removing the shuttle ..........50
Installing the shuttle ..........52
Removing the rear LED/serial connector
assembly ..............54
Installing the rear LED/serial connector assembly 55
Removing and replacing the midplane ....55
Chapter 5. Configuration information
and guidelines ...........59
Updating the firmware ..........59
Configuring the BladeCenter unit .......59
Configuring the management module ....59
Configuring I/O modules ........59
Configuring blade servers ........60
BladeCenter networking guidelines ......60
Appendix A. Getting help and technical
assistance .............61
Before you call .............61
Using the documentation ..........61
Getting help and information from the World Wide
Web.................62
Software service and support ........62
Hardware service and support ........62
IBM Taiwan product service .........62
Appendix B. Notices .........63
Trademarks ..............63
Important notes .............64
Particulate contamination..........65
Documentation format...........65
Electronic emission notices .........66
Federal Communications Commission (FCC)
statement ..............66
Industry Canada Class A emission compliance
statement ..............66
Avis de conformité à la réglementation
d'Industrie Canada ...........66
Australia and New Zealand Class A statement . 66
European Union EMC Directive conformance
statement ..............66
Germany Class A statement ........67
Japan VCCI Class A statement .......68
Japan Electronics and Information Technology
Industries Association (JEITA) statement....68
Korea Communications Commission (KCC)
statement ..............68
© Copyright IBM Corp. 2010 iii
Russia Electromagnetic Interference (EMI) Class
A statement .............69
People's Republic of China Class A electronic
emission statement ...........69
Taiwan Class A compliance statement ....69
Index ...............71
iv
BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service 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.
Antes de instalar este producto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
© Copyright IBM Corp. 2010 v
Guidelines for trained service technicians
This section contains information for trained service technicians.
Inspecting for unsafe conditions
Use the information in this section to help you identify potential unsafe conditions
in an IBM product that you are working on. Each IBM product, as it was designed
and manufactured, has required safety items to protect users and service
technicians from injury. The information in this section addresses only those items.
Use good judgment to identify potential unsafe conditions that might be caused by
non-IBM alterations or attachment of non-IBM features or options that are not
addressed in this section. If you identify an unsafe condition, you must determine
how serious the hazard is and whether you must correct the problem before you
work on the product.
Consider the following conditions and the safety hazards that they present:
v Electrical hazards, especially primary power. Primary voltage on the frame can
cause serious or fatal electrical shock.
v Explosive hazards, such as a damaged CRT face or a bulging capacitor.
v Mechanical hazards, such as loose or missing hardware.
To inspect the product for potential unsafe conditions, complete the following
steps:
1. Make sure that the power is off and the power cords are disconnected.
2. Make sure that the exterior cover is not damaged, loose, or broken, and observe
any sharp edges.
3. Check the power cords:
v Make sure that the third-wire ground connector is in good condition. Use a
meter to measure third-wire ground continuity for 0.1 ohm or less between
the external ground pin and the frame ground.
v Make sure that the power cords are the correct type.
v Make sure that the insulation is not frayed or worn.
4. Remove the cover.
5. Check for any obvious non-IBM alterations. Use good judgment as to the safety
of any non-IBM alterations.
6. Check inside the computer for any obvious unsafe conditions, such as metal
filings, contamination, water or other liquid, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Make sure that the power-supply cover fasteners (screws or rivets) have not
been removed or tampered with.
Guidelines for servicing electrical equipment
Observe the following guidelines when servicing electrical equipment:
v Check the area for electrical hazards such as moist floors, nongrounded power
extension cords, and missing safety grounds.
v Use only approved tools and test equipment. Some hand tools have handles that
are covered with a soft material that does not provide insulation from live
electrical current.
v Regularly inspect and maintain your electrical hand tools for safe operational
condition. Do not use worn or broken tools or testers.
vi BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
v Do not touch the reflective surface of a dental mirror to a live electrical circuit.
The surface is conductive and can cause personal injury or equipment damage if
it touches a live electrical circuit.
v Some rubber floor mats contain small conductive fibers to decrease electrostatic
discharge. Do not use this type of mat to protect yourself from electrical shock.
v Do not work alone under hazardous conditions or near equipment that has
hazardous voltages.
v Locate the emergency power-off (EPO) switch, disconnecting switch, or electrical
outlet so that you can turn off the power quickly in the event of an electrical
accident.
v Disconnect all power before you perform a mechanical inspection, work near
power supplies, or remove or install main units.
v Before you work on the equipment, disconnect the power cord. If you cannot
disconnect the power cord, have the customer power-off the wall box that
supplies power to the equipment and lock the wall box in the off position.
v Never assume that power has been disconnected from a circuit. Check it to
make sure that it has been disconnected.
v If you have to work on equipment that has exposed electrical circuits, observe
the following precautions:
– Make sure that another person who is familiar with the power-off controls is
near you and is available to turn off the power if necessary.
– When you are working with powered-on electrical equipment, use only one
hand. Keep the other hand in your pocket or behind your back to avoid
creating a complete circuit that could cause an electrical shock.
– When using a tester, set the controls correctly and use the approved probe
leads and accessories for that tester.
– Stand on a suitable rubber mat to insulate you from grounds such as metal
floor strips and equipment frames.
v Use extreme care when measuring high voltages.
v To ensure proper grounding of components such as power supplies, pumps,
blowers, fans, and motor generators, do not service these components outside of
their normal operating locations.
v If an electrical accident occurs, use caution, turn off the power, and send another
person to get medical aid.
Safety statements
Important:
Each caution and danger statement in this document is labeled with a number.
This number is used to cross reference an English-language caution or danger
statement with translated versions of the caution or danger statement in the Safety
Information document.
For example, if a caution statement is labeled "Statement 1", translations for that
caution are in the Safety Information document under "Statement 1".
Be sure to read all caution and danger statements in this document before you
perform the procedures. Read any additional safety information that comes with
the server or optional device before you install the device.
Statement 1:
Safety vii
DANGER
Electrical current from power, telephone, and communication cables is
hazardous.
To avoid a shock hazard:
v Do not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical storm.
v Connect all power cords to a properly wired and grounded electrical outlet.
v Connect to properly wired outlets any equipment that will be attached to
this product.
v When possible, use one hand only to connect or disconnect signal cables.
v Never turn on any equipment when there is evidence of fire, water, or
structural damage.
v Disconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
v Connect and disconnect cables as described in the following table when
installing, moving, or opening covers on this product or attached devices.
To Connect: To Disconnect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
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.
viii BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service 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:
v Throw or immerse into water
v Heat to more than 100°C (212°F)
v Repair 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:
v Do not remove the covers. Removing the covers of the laser product could
result in exposure to hazardous laser radiation. There are no serviceable parts
inside the device.
v Use of controls or adjustments or performance of procedures other than those
specified herein might result in hazardous radiation exposure.
DANGER
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 ix
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 cord. To remove all electrical current from
the device, ensure that all power cords are disconnected from the power source.
2 / 3 1 / 4
x BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service 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 xi
Statement 20:
CAUTION:
To avoid personal injury, before lifting the unit, remove all the blades to reduce
the weight.
(14X)
164 kg
(360 lbs)
(4X)
(2X)
44 kg
(96 lbs)
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.
United Kingdom - Notice to Customers:
This apparatus is approved under approval number NS/G/1234/J/100003 for
indirect connection to public telecommunication systems in the United Kingdom.
xii BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
Chapter 1. Introduction
This Problem Determination and Service Guide contains information to help you solve
problems that might occur in your IBM®BladeCenter®Type 8852, 7989, and 1886
unit. It describes the diagnostic tools that come with the BladeCenter unit, error
codes and suggested actions, and instructions for replacing failing components.
Replaceable components are of three types:
v Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your
responsibility. If IBM installs a Tier 1 CRU at your request, you will be charged
for the installation.
v Tier 2 customer replaceable unit: You can install a Tier 2 CRU yourself or
request IBM to install it, at no additional charge, under the type of warranty
service that is designated for your computer.
v Field replacement unit (FRU): FRUs must be installed only by trained service
technicians.
For information about the terms of the warranty and getting service and assistance,
see the Warranty and Support Information document on the IBM Documentation CD.
Related documentation
In addition to this document, the following related documentation is provided in
Portable Document Format (PDF) on the BladeCenter Documentation CD that comes
with your BladeCenter unit:
v BladeCenter H Installation and User’s Guide
This printed document contains instructions for setting up the BladeCenter unit
and general information about the BladeCenter unit, including information
about features, and how to configure the BladeCenter unit. It also contains
detailed instructions for installing, removing, and connecting optional devices
that the BladeCenter unit supports.
v BladeCenter H Rack Installation Instructions
This printed document contains instructions for installing the BladeCenter unit
in a rack.
v BladeCenter Advanced Management Module Installation Guide
This document contains instructions for installing the management module in
the BladeCenter unit and creating the initial configuration.
v BladeCenter Advanced Management Module User’s Guide
This document provides general information about the management module for
your BladeCenter unit type, including information about features, how to
configure the management module, and how to get help.
v BladeCenter Advanced Management Module Command-Line Interface Reference Guide
This document explains how to use the management-module command-line
interface to directly access BladeCenter management functions as an alternative
to using the Web-based user interface. The command-line interface also provides
access to the text-console command prompt on each blade server through a
Serial over LAN (SOL) connection.
© Copyright IBM Corp. 2010 1
v BladeCenter Advanced Management Module Messages Guide
This document contains a complete list of all non-device specific events and
recommended actions, sorted by event ID. Device specific event information is in
the documentation for the device.
v Safety 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.
v Warranty
This document contains information about the terms of the warranty.
v Serial over LAN Setup Guide
This document explains how to update and configure BladeCenter components
for Serial over LAN (SOL) operation. The SOL connection provides access to the
text-console command prompt on each blade server and enables the blade
servers to be managed from a remote location.
Additional documentation might be included on the IBM BladeCenter Documentation
CD.
The BladeCenter unit might have features that are not described in the
documentation that comes with the BladeCenter unit. The documentation might be
updated occasionally to include information about those features, or technical
updates might be available to provide additional information that is not included
in the BladeCenter unit documentation. These updates are available from the IBM
Web site. To check for updated documentation and technical updates, go to
http://www.ibm.com/support/.
2 BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
Notices and statements in this document
The caution and danger statements that appear in this document are also in the
multilingual Safety Information document, which is on the IBM Documentation CD.
Each statement is numbered for reference to the corresponding statement in the
Safety Information document.
The following notices and statements are used in this document:
v Note: These notices provide important tips, guidance, or advice.
v Important: These notices provide information or advice that might help you
avoid inconvenient or problem situations.
v Attention: These notices indicate potential damage to programs, devices, or data.
An attention notice is placed just before the instruction or situation in which
damage could occur.
v Caution: These statements indicate situations that can be potentially hazardous
to you. A caution statement is placed just before the description of a potentially
hazardous procedure step or situation.
v Danger: These statements indicate situations that can be potentially lethal or
extremely hazardous to you. A danger statement is placed just before the
description of a potentially lethal or extremely hazardous procedure step or
situation.
Chapter 1. Introduction 3
Features and specifications
The following table provides a summary of the features and specifications of the
BladeCenter unit. Depending on the model, some features might not be available,
or some specifications might not apply.
Media tray (on front):
v Optical drive (optional)
v Two USB v2.0 ports
v Front system LED panel
Blade bays (on front): 14 hot-swap
blade-server bays
Module bays (on front): Four hot-swap
power-module bays
Module bays (on rear):
v Two hot-swap management-module
bays
v Ten hot-swap I/O-module bays
v Two hot-swap blower bays
Power modules:
v Minimum: Two hot-swap power
modules that are configured for
redundant operation
v Maximum: Four hot-swap power
modules that provide redundancy to
all BladeCenter components
Redundant cooling: Two
variable-speed hot-swap blowers
Management module:
v Minimum: One hot-swap advanced
management module.
v Maximum: Two hot-swap advanced
management modules: one active,
one hot stand-by.
Upgradeable microcode:
v Management-module firmware
v I/O-module firmware (not all I/O
module types)
v Blade-server firmware
Security features:
v Login password for remote connection
v Secure Sockets Layer (SSL) security for
remote management access
Predictive Failure Analysis (PFA) alerts:
v Blowers
v Blade-dependent features
Size (9 U):
v Height: 400.1 mm (15.75 in. or 9 U)
v Depth: 711.2 mm (28 in.)
v Width: 482.6 mm (19 in.)
v Weight:
– Full configured weight with blade
servers: Approximately 158.8 kg (350
lbs)
– Empty chassis without modules or
blade servers: Approximately 40.82
kg (90 lbs)
Environment:
v Air temperature:
– BladeCenter unit 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 90°F)
– BladeCenter unit off: -40° to 60°C
(-40° to 140°F).
v Humidity: 8% to 80%
v Acoustics: declared sound power level: 7.5
1
bels
Electrical input:
v Sine-wave input (50-60 Hz single-phase)
required
v Input voltage:
– Minimum: 200 V ac
– Maximum: 240 V ac
Heat output: Approximate heat output in
British thermal units (Btu) per hour:
v Minimum configuration: 1024 Btu/hour
(300 watts)
v Maximum configuration: 32757 Btu/hour
(9600 watts)
Airflow: Approximate airflow in cubic feet
per minute (cfm):
v Minimum airflow: 450 cfm
v Maximum airflow: 975 cfm
Notes:
1. Government regulations (such as those prescribed by Occupational Safety and Health Administration or European Community
Directives) might govern noise level exposure in the workplace and might apply to you and your server installation. The actual
sound pressure levels in your installation depend on a variety of factors, including the number of racks in the installation; the
size, materials, and configuration of the room where you designate the racks to be installed; the noise levels from other
equipment; the room ambient temperature; and employees' location in relation to the equipment. Compliance with such
government regulations also depends on a variety of additional factors, including the duration of employees' exposure and
whether employees wear hearing protection. It is recommended that you consult qualified experts in this field to determine
whether you are in compliance with the applicable regulations.
4 BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
Controls, LEDs, and connectors
This section identifies the components, controls, and LEDs on the front and rear of
the BladeCenter unit.
Note: The illustrations in this document might differ from your hardware.
Front view
This section identifies the components, controls, and LEDs on the front of the
BladeCenter unit.
Power module 1 Power module
bay 3
Blade
server
control
panel
System
service
cards
Power module 2 Power module
Media tray
Front system
LED panel
Optical drive
activity LED
Optical drive
eject button
USB connectors
bay 4
Power modules
The following illustration shows the LEDs on each power module.
AC power LED
Power module error LED
DC power LED
The LEDs on each power module indicate the condition of the power module and
fan pack. For additional information, see “Light path diagnostic LEDs” on page 17.
Note: The orientation of the power module shown in the illustration is for a
module that is installed in one of the top power-module bays. The orientation for a
module that is installed in one of the bottom power-module bays is rotated 180°.
v DC power LED: When this green LED is lit, the dc output from the power
module to the other components and blade servers is present and within
specifications. During typical operation, both the ac power and dc power LEDs
are lit.
Fan error LED
Chapter 1. Introduction 5
v AC power LED: When this green LED is lit, ac input to the power module is
present and within specifications. During typical operation, both the ac power
and dc power LEDs are lit.
v Power module error LED: When this amber LED is lit, a power module has
failed and is not operating within specifications.
v Fan error LED: When this amber LED is lit, a fan pack has failed and is not
operating within specifications.
Media tray
The media tray contains the following:
v Front system LED panel
The LEDs on this panel provide status information for your BladeCenter unit.
Power-on
Location
Over-temperature
Information
System error
Note: You can turn off the location LED and the information LED through the
Web interface.
– Power-on: When this green LED is lit, power is present in the BladeCenter
unit. When this LED is off, the power subsystem, the ac power, or the LED
has failed, or the management module is not present or not functioning.
Attention: If the power-on LED is off, it does not mean there is no electrical
current present in the BladeCenter unit. The LED might be burned out. To
remove all electrical current from the BladeCenter unit, you must disconnect
all power cords from all power modules.
– Location: When this blue LED is lit or flashing, it has been turned on by the
system administrator, to aid in visually locating the BladeCenter unit. If a
blade server requires attention, the location LED on the blade server usually
will also be lit. After the BladeCenter unit has been located, you can have the
system administrator turn off the location LED.
– Over-temperature: When this amber LED is lit, the temperature in the
BladeCenter unit exceeds the temperature limits, or a blade server reports an
over-temperature condition. The BladeCenter unit might have already taken
corrective action, such as increasing the blower speed. This LED turns off
automatically when there is no longer an over-temperature condition.
– Information: When this amber LED is lit, a noncritical event has occurred
that requires attention, such as the wrong I/O module inserted in a bay or
power demands that exceed the capacity of power modules that are currently
installed. The event is recorded in the event log. Check the LEDs on the
BladeCenter unit and the blade servers to isolate the component (see
Chapter 2, “Diagnostics,” on page 11 for more information about event log
messages and checking the LEDs). After the situation is corrected, have the
system administrator turn off the information LED.
6 BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
– System-error: When this amber LED is lit, it indicates that a system error has
v Optical-drive activity LED: When this LED is lit, it indicates that the optical
drive is in use.
v Optical-drive eject button: Press this button to release a disc from the optical
drive.
v USB connectors: Use these connectors to attach external USB devices.
System service cards
These cards contain system service instructions and a writable area. They slide in
and out of the storage location on the left side of the BladeCenter unit.
Blade server control panel
This panel contains indicators and controls for the blade server. See the
documentation that comes with your blade server for information about the blade
server control panel.
Rear view
This section identifies the components, connectors, and indicators on the rear of the
BladeCenter unit.
Power connector 2
occurred, such as a failed module or a system error in a blade server. An LED
on one of the components or on a blade server is also lit to further isolate the
error. (See Chapter 2, “Diagnostics,” on page 11 for more information.)
I/O module bay 7
I/O module bay 8
Power connector 1
Management
I/O module bay 1
I/O module bay 5
I/O module bay 2
I/O module bay 6
Blower module 2
error LED
Rear system
LED panel
Serial connector
I/O module bay 9
I/O module bay 10
module 1
I/O module bay 3
Blower module 1
error LED
Blower module 1
Management
module bay 2
I/O module bay 4
Blower module 2
Power connectors
Connect a power cord from each power connector to a 220-volt power distribution
unit (PDU) or an appropriate electrical outlet.
I/O modules
See the documentation that comes with each I/O module for a description of the
LEDs and connectors on the I/O module.
Chapter 1. Introduction 7
Management modules
See the documentation that comes with each management module for a description
of the LEDs and connectors on the module.
Blower modules
When the amber LED on a blower module is lit, an error has been detected in the
blower or ac power to the blower is not present. The system-error LEDs on the
BladeCenter system LED panels are also lit.
Serial connector
This connector provides direct access to the serial ports on each of the 14 blade
server bays. Use this connector to attach the optional serial port breakout cable and
connect up to 14 local consoles. See the documentation that comes with your blade
server to see if it supports this cable.
Rear system LED panel
The LEDs on this panel provide status information. These LEDs duplicate the
LEDs in the front system LED panel (see “Front system LED panel” on page 6 for
more information).
8 BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
Supplying power to the BladeCenter unit
To supply power to the BladeCenter unit, connect one end of each power cord to a
power connector on the rear of the BladeCenter unit and the other end of each
power cord to a 220-volt PDU that is connected to an appropriate electrical outlet.
The BladeCenter unit does not have a power switch.
After the BladeCenter unit has power, the blade servers in the BladeCenter unit are
connected to power but are not turned on. Depending on the configuration
settings, the blade servers might have to be individually turned on.
Disconnecting power from the BladeCenter unit
You can shut down the BladeCenter unit by turning off the blade servers and
disconnecting the BladeCenter unit from the power source.
To disconnect power from the BladeCenter unit, complete the following steps:
1. Shut down the operating systems and turn off any blade servers. See the
documentation that comes with the blade server for detailed instructions.
Statement 5:
CAUTION:
The power control button on the device and the power switch on the power
supply do not turn off the electrical current supplied to the device. The
device also might have more than one power cord. To remove all electrical
current from the device, ensure that all power cords are disconnected from
the power source.
2 / 3 1 / 4
2. Disconnect both power cords from the BladeCenter unit.
Attention: The power cords on the rear of the BladeCenter chassis are not
approved to be connected or disconnected under power. You must first
disconnect the power cords from the ac power source; then, you can remove
the power cords from the chassis connectors.
Note: After you disconnect the BladeCenter unit from power, wait at least 5
seconds before you connect the BladeCenter unit to power again.
Chapter 1. Introduction 9
10 BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
Chapter 2. Diagnostics
This chapter describes the diagnostic tools that are available to help you solve
problems that might occur in the BladeCenter unit.
If you cannot locate and correct the problem using the information in this chapter,
see Appendix A, “Getting help and technical assistance,” on page 61 for more
information.
Diagnostic tools
The following tools are available to help you diagnose and solve hardware-related
problems:
v Troubleshooting tables
These tables list problem symptoms and actions to correct the problems. See
“Troubleshooting tables” on page 12 for more information.
v Light path diagnostic LEDs
Use the light path diagnostic LEDs on the BladeCenter unit and the BladeCenter
components to identify system errors quickly. See “Light path diagnostic LEDs”
on page 17 for more information.
v Diagnostic program and error messages
The management module built-in self-test (BIST) program checks the
BladeCenter unit during startup; then while the BladeCenter unit is running, the
management module constantly monitors the status of all of the installed
components. If problems or changes in status are found, the management
module generates messages and displays them in the event log (see “Event log
messages” on page 19).
© Copyright IBM Corp. 2010 11
Troubleshooting tables
Use the troubleshooting tables to find solutions to problems that have identifiable
symptoms. If one or more LEDs on the BladeCenter unit or the components is lit,
see “Light path diagnostic LEDs” on page 17.
If you cannot find the problem in these tables, see “Solving undetermined
problems” on page 20.
If you have just added a new optional device and the BladeCenter unit is not
working, complete the following steps before using the troubleshooting tables:
1. Remove the device that you just added.
2. Restart the BladeCenter unit to determine whether the BladeCenter unit is
working correctly.
3. Reinstall the new device.
Blade server problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, “Parts listing,” on page 23 to determine which components are CRUs and which components
are FRUs.
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
A blade server power-on LED
flashes rapidly for an extended
amount of time.
v Make sure that at least one management module is installed, and it is active
and working.
v Reseat the blade server.
v Replace the blade server.
Blower module problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, “Parts listing,” on page 23 to determine which components are CRUs and which components
are FRUs.
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
A blower module is running at
full speed.
12 BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
1. Make sure that:
v The other blower is installed and working.
v At least one management module is installed, and it is active and working.
2. Reseat the following components:
a. Media tray
b. Blower module
3. Replace the blower module.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, “Parts listing,” on page 23 to determine which components are CRUs and which components
are FRUs.
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
A blower module is not
working.
1. Make sure all power cords are plugged into 220-Volt power sources and that
the power sources are working.
2. Reseat the blower module.
3. Replace the blower module.
Fan pack problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, “Parts listing,” on page 23 to determine which components are CRUs and which components
are FRUs.
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
A fan pack is running at full
speed.
1. Make sure that at least one management module is installed, and it is active
and working.
2. Reseat the following components:
a. Power module.
b. Fan pack
3. Replace the fan pack
1
1
1
2900W power modules with removable fan pack only. If the unit is equipped
with 2980W power modules, reseat or replace the power module.
I/O module problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, “Parts listing,” on page 23 to determine which components are CRUs and which components
are FRUs.
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
An I/O module will not turn
on.
Cannot communicate with the
external ports on an I/O
module.
1. Make sure that at least one management module is installed, and it is active
and working.
2. Reseat the I/O module.
3. Replace the I/O module.
1. Make sure that external ports option is enabled in the management module
Web interface.
2. Reseat the I/O module.
3. Replace the I/O module.
Chapter 2. Diagnostics 13
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