IBM 5786 Use and care manual

Power Systems
5786, 5787, and 7031 models D24
and T24
removal and replacement procedures


Power Systems
5786, 5787, and 7031 models D24
and T24
removal and replacement procedures


Note
Before using this information and the product it supports, read the information in “Notices” on page 43, “Safety notices” on
page v, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide, Z125–5823.
This edition applies to IBM Power Systems™servers that contain the POWER7 processor and to all associated
models.
© Copyright IBM Corporation 2010.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety notices .................................v
5786, 5787, 7031-D24, and 7031-T24 removal and replacement procedures .......1
Reference information ................................3
Disk drive ....................................8
Replacing the disk drive by using IBM i .........................10
Deactivating a disk drive by using AIX .........................16
Adding a disk drive as a resource by using AIX ......................17
Deactivating a disk drive by using Linux ........................17
Adding a disk drive as a resource by using Linux .....................18
Rebuilding data on a replacement disk drive using Linux ...................19
Fan......................................19
Power supply ..................................21
SCSI repeater card .................................23
Chassis assembly (chassis, enclosure backplane, and VPD card) ..................25
Problem determination procedures .......................27
Disk drive module power-on self-tests ..........................27
SCSI card power-on self-tests .............................27
Component and attention LEDs ............................28
7031-D24 or 7031-T24 maintenance analysis procedures ..............33
MAP 2010: 7031-D24 or 7031-T24 start ..........................34
MAP 2020: 7031-D24 or 7031-T24 power ..........................36
MAP 2022: 7031-D24 or 7031-T24 power-on.........................38
MAP 2030: 7031-D24 or 7031-T24 power control .......................40
MAP 2340: 7031-D24 or 7031-T24 SCSI bus .........................41
MAP 2410: 7031-D24 or 7031-T24 repair verification ......................42
Notices ...................................43
Trademarks ...................................44
Electronic emission notices ..............................44
Class A Notices .................................44
Terms and conditions ................................48
© Copyright IBM Corp. 2010 iii

iv Removal and replacement procedures

Safety notices
Safety notices may be printed throughout this guide:
vDANGER notices call attention to a situation that is potentially lethal or extremely hazardous to
people.
vCAUTION notices call attention to a situation that is potentially hazardous to people because of some
existing condition.
vAttention notices call attention to the possibility of damage to a program, device, system, or data.
World Trade safety information
Several countries require the safety information contained in product publications to be presented in their
national languages. If this requirement applies to your country, safety information documentation is
included in the publications package (such as in printed documentation, on DVD, or as part of the
product) shipped with the product. The documentation contains the safety information in your national
language with references to the U.S. English source. Before using a U.S. English publication to install,
operate, or service this product, you must first become familiar with the related safety information
documentation. You should also refer to the safety information documentation any time you do not
clearly understand any safety information in the U.S. English publications.
Replacement or additional copies of safety information documentation can be obtained by calling the IBM
Hotline at 1-800-300-8751.
German safety information
Das Produkt ist nicht für den Einsatz an Bildschirmarbeitsplätzen im Sinne§2der
Bildschirmarbeitsverordnung geeignet.
Laser safety information
IBM®servers can use I/O cards or features that are fiber-optic based and that utilize lasers or LEDs.
Laser compliance
IBM servers may be installed inside or outside of an IT equipment rack.
© Copyright IBM Corp. 2010 v

DANGER
When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication cables are hazardous. To
avoid a shock hazard:
vConnect power to this unit only with the IBM provided power cord. Do not use the IBM
provided power cord for any other product.
vDo not open or service any power supply assembly.
vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
vThe product might be equipped with multiple power cords. To remove all hazardous voltages,
disconnect all power cords.
vConnect all power cords to a properly wired and grounded electrical outlet. Ensure that the outlet
supplies proper voltage and phase rotation according to the system rating plate.
vConnect any equipment that will be attached to this product to properly wired outlets.
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 procedures when installing, moving,
or opening covers on this product or attached devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices.
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
(D005)
DANGER
vi Removal and replacement procedures

Observe the following precautions when working on or around your IT rack system:
vHeavy equipment–personal injury or equipment damage might result if mishandled.
vAlways lower the leveling pads on the rack cabinet.
vAlways install stabilizer brackets on the rack cabinet.
vTo avoid hazardous conditions due to uneven mechanical loading, always install the heaviest
devices in the bottom of the rack cabinet. Always install servers and optional devices starting
from the bottom of the rack cabinet.
vRack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top
of rack-mounted devices.
vEach rack cabinet might have more than one power cord. Be sure to disconnect all power cords in
the rack cabinet when directed to disconnect power during servicing.
vConnect all devices installed in a rack cabinet to power devices installed in the same rack
cabinet. Do not plug a power cord from a device installed in one rack cabinet into a power
device installed in a different rack cabinet.
vAn electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of
the system or the devices that attach to the system. It is the responsibility of the customer to
ensure that the outlet is correctly wired and grounded to prevent an electrical shock.
CAUTION
vDo not install a unit in a rack where the internal rack ambient temperatures will exceed the
manufacturer's recommended ambient temperature for all your rack-mounted devices.
vDo not install a unit in a rack where the air flow is compromised. Ensure that air flow is not
blocked or reduced on any side, front, or back of a unit used for air flow through the unit.
vConsideration should be given to the connection of the equipment to the supply circuit so that
overloading of the circuits does not compromise the supply wiring or overcurrent protection. To
provide the correct power connection to a rack, refer to the rating labels located on the
equipment in the rack to determine the total power requirement of the supply circuit.
v(For sliding drawers.) Do not pull out or install any drawer or feature if the rack stabilizer brackets
are not attached to the rack. Do not pull out more than one drawer at a time. The rack might
become unstable if you pull out more than one drawer at a time.
v(For fixed drawers.) This drawer is a fixed drawer and must not be moved for servicing unless
specified by the manufacturer. Attempting to move the drawer partially or completely out of the
rack might cause the rack to become unstable or cause the drawer to fall out of the rack.
(R001)
Safety notices vii

CAUTION:
Removing components from the upper positions in the rack cabinet improves rack stability during
relocation. Follow these general guidelines whenever you relocate a populated rack cabinet within a
room or building:
vReduce the weight of the rack cabinet by removing equipment starting at the top of the rack
cabinet. When possible, restore the rack cabinet to the configuration of the rack cabinet as you
received it. If this configuration is not known, you must observe the following precautions:
– Remove all devices in the 32U position and above.
– Ensure that the heaviest devices are installed in the bottom of the rack cabinet.
– Ensure that there are no empty U-levels between devices installed in the rack cabinet below the
32U level.
vIf the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from
the suite.
vInspect the route that you plan to take to eliminate potential hazards.
vVerify that the route that you choose can support the weight of the loaded rack cabinet. Refer to the
documentation that comes with your rack cabinet for the weight of a loaded rack cabinet.
vVerify that all door openings are at least 760 x 230 mm (30 x 80 in.).
vEnsure that all devices, shelves, drawers, doors, and cables are secure.
vEnsure that the four leveling pads are raised to their highest position.
vEnsure that there is no stabilizer bracket installed on the rack cabinet during movement.
vDo not use a ramp inclined at more than 10 degrees.
vWhen the rack cabinet is in the new location, complete the following steps:
– Lower the four leveling pads.
– Install stabilizer brackets on the rack cabinet.
– If you removed any devices from the rack cabinet, repopulate the rack cabinet from the lowest
position to the highest position.
vIf a long-distance relocation is required, restore the rack cabinet to the configuration of the rack
cabinet as you received it. Pack the rack cabinet in the original packaging material, or equivalent.
Also lower the leveling pads to raise the casters off of the pallet and bolt the rack cabinet to the
pallet.
(R002)
(L001)
(L002)
viii Removal and replacement procedures

(L003)
or
All lasers are certified in the U.S. to conform to the requirements of DHHS 21 CFR Subchapter J for class
1 laser products. Outside the U.S., they are certified to be in compliance with IEC 60825 as a class 1 laser
product. Consult the label on each part for laser certification numbers and approval information.
CAUTION:
This product might contain one or more of the following devices: CD-ROM drive, DVD-ROM drive,
DVD-RAM drive, or laser module, which are Class 1 laser products. Note the following information:
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 the controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
(C026)
Safety notices ix

CAUTION:
Data processing environments can contain equipment transmitting on system links with laser modules
that operate at greater than Class 1 power levels. For this reason, never look into the end of an optical
fiber cable or open receptacle. (C027)
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical instruments. (C028)
CAUTION:
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following
information: laser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam. (C030)
CAUTION:
The battery contains lithium. To avoid possible explosion, do not burn or charge the battery.
Do Not:
v___ Throw or immerse into water
v___ Heat to more than 100°C (212°F)
v___ Repair or disassemble
Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local
regulations. In the United States, IBM has a process for the collection of this battery. For information,
call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C003)
Power and cabling information for NEBS (Network Equipment-Building System)
GR-1089-CORE
The following comments apply to the IBM servers that have been designated as conforming to NEBS
(Network Equipment-Building System) GR-1089-CORE:
The equipment is suitable for installation in the following:
vNetwork telecommunications facilities
vLocations where the NEC (National Electrical Code) applies
The intrabuilding ports of this equipment are suitable for connection to intrabuilding or unexposed
wiring or cabling only. The intrabuilding ports of this equipment must not be metallically connected to the
interfaces that connect to the OSP (outside plant) or its wiring. These interfaces are designed for use as
intrabuilding interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE) and require isolation
from the exposed OSP cabling. The addition of primary protectors is not sufficient protection to connect
these interfaces metallically to OSP wiring.
Note: All Ethernet cables must be shielded and grounded at both ends.
The ac-powered system does not require the use of an external surge protection device (SPD).
The dc-powered system employs an isolated DC return (DC-I) design. The DC battery return terminal
shall not be connected to the chassis or frame ground.
xRemoval and replacement procedures

5786, 5787, 7031-D24, and 7031-T24 removal and replacement
procedures
Use the removal and replacement procedures when exchanging, maintaining or repairing your I/O
enclosure parts.
Before you begin a replacement procedure, perform these tasks:
vIf you are performing a replacement procedure that might put your data at risk, ensure, if possible,
that you have a current backup of your system or logical partition (including operating systems,
licensed programs, and data). For information about backing up your system or logical partition, go to
http://www.ibm.com/systems/i/infocenter
vReview the installation or replacement procedure for the feature or part.
vNote the significance of color on your system. Blue or terra-cotta on a part of the hardware indicates a
touch point where you can grip the hardware to remove it from or install it in the system, open or
close a latch, and so on. terra-cotta might also indicate that the part can be removed and replaced with
the system or logical partition power on.
vEnsure that you have access to a medium, flat-blade screwdriver.
vIf parts are incorrect, missing, or visibly damaged, contact the provider of your parts, or your next
level of support.
© Copyright IBM Corp. 2010 1

DANGER
When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication cables are hazardous. To
avoid a shock hazard:
vConnect power to this unit only with the IBM provided power cord. Do not use the IBM
provided power cord for any other product.
vDo not open or service any power supply assembly.
vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
vThe product might be equipped with multiple power cords. To remove all hazardous voltages,
disconnect all power cords.
vConnect all power cords to a properly wired and grounded electrical outlet. Ensure that the outlet
supplies proper voltage and phase rotation according to the system rating plate.
vConnect any equipment that will be attached to this product to properly wired outlets.
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 procedures when installing, moving,
or opening covers on this product or attached devices.
To Disconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices.
To Connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
(D005)
Attention:
Failure to follow the step-by-step sequence for FRU removal or installation might result in FRU or system
damage.
Use the following precautions whenever you handle electronic components or cables.
vThe electrostatic discharge (ESD) kit and the ESD wrist strap must be used when handling logic cards,
SCMs, MCMs, electronic boards, and disk drives.
vKeep all electronic components in the shipping container or envelope until you are ready to install
them.
vIf you remove, then reinstall an electronic component, temporarily place the component on an ESD pad
or blanket.
2Removal and replacement procedures

Reference information
Provides reference information such as size and capacity of power supplies, cooling fans, and Ultra 320
small computer system interface (SCSI) connections for the 5786, 5787, 7031-D24, and 7031-T24 I/O
enclosures.
I/O enclosure overview
The following System i®models are available:
v5786 - Rack-installable drawer model
v5787 - Deskside (Tower) model
The following System p®models are available:
v7031-D24 - Rack-installable drawer model
v7031-T24 - Deskside (Tower) model
Note: The remainder of this topic collection refers to the 5786, 5787, 7031-D24, and 7031-T24 as either
"your I/O enclosure" or "the I/O enclosure."
Index number Description
1 5786, 7031-D24 disk I/O enclosure
2 5787, 7031-T24 disk I/O enclosure
Note: Only 12 disk drives are allowed per SCSI. The front and rear disk dives cannot be on the same
SCSI.
The disk drives are organized in four independent SCSI groups of six drives in each group. With the use
of up to four SCSI repeater cards, you can use either of the following host SCSI bus connection options:
vA single initiator to each SCSI group
vA high-availability dual initiator feature that allows the connection of two adapters to a SCSI group
The high-availability SCSI connection feature can be used on any or all of the drive groups in the
enclosure and together with other drive groups in the enclosure, using the standard connection option.
Power is provided through ac power cords. Either model can be set up to use 100-127 V ac or 200-240 V
ac.
Power and fault indicators
Light emitting diodes (LEDs) are located either on or near the major serviceable components in the
enclosure. When it is lit, the LEDs emit either a green or amber light.
5786, 5787, 7031-D24, and 7031-T24 removal and replacement procedures 3

When it is lit, a green LED indicates either of the following:
vElectric power is present.
vActivity is occurring on a link. (The enclosure could be sending or receiving information.)
When it is lit, an amber LED indicates a fault or identify condition. If the enclosure or one of the
components on your system has an amber LED turned on solid (not blinking) or blinking, identify the
problem and take the appropriate action to restore the component to a normal operating condition.
For more information about specific LEDs found on or near the major serviceable components in your
enclosure, see “Component and attention LEDs” on page 28.
Storage
Storage is accomplished through the use of standard size SCSI U320 (LVD) disk drives. The disk drives
must be housed in a U3 disk carrier with a standard interposer card (part number 24L0787). Light pipes
located on the disk carriers transmit light from LEDs located on the disk-drive backplane. The LEDs are
used to aid in the identification and failure diagnostics of each disk drive. For more information
concerning disk-drive LEDs used by this enclosure, see “Component and attention LEDs” on page 28.
The following disk drive sizes and speeds are available:
10,000 revolution per minute (RPM) disk drives 15,000 RPM disk drives
v73.4 GB Ultra320, height =1 inch
v146.8 GB Ultra320, height =1 inch
v300 GB Ultra320, height =1 inch
v36.4 GB Ultra320, height =1 inch
v73.4 GB Ultra320, height =1 inch
v146.8 GB Ultra320, height =1 inch
v300 GB Ultra320, height =1 inch
For an updated listing of supported disk drive sizes, contact your sales representative or next level of support.
The chassis of your I/O enclosure contains 24 hot-plug disk-drive bays. Twelve of the disk-drive bays are
located in the front and twelve disk-drive bays are located in the back of the enclosure. Any disk drive
bay not populated with a disk drive must contain a "dummy carrier" to control the airflow within the
enclosure. The dummy carrier does not contain light pipes or electrical connection, so enclosure services
cannot determine whether it is installed.
Attention: To avoid overheating of the enclosure components, you must install dummy carriers in
empty disk-drive bays.
The following illustrations show the front and back of the enclosure's disk-drive bay locations. On System
i enclosures, each disk-drive bay contains a LED used to identify the bay. A specific disk-drive bay LED
will be lit as you follow the steps in performing a concurrent removal or replacement procedure on that
bay. The identify LED is amber colored. For more information concerning these LEDs, see “Component
and attention LEDs” on page 28.
4Removal and replacement procedures

Index number Description
1 5786, 7031-D24 disk I/O enclosure (front of rack drawer configuration)
2 Shows 12 disk-bay location
3 Enclosure status panel
4 5787, 7031-T24 disk I/O enclosure (front of deskside configuration)
5 Disk drive bay identify LED locations-front (on System i models only)
Index number Description
1 5786, 7031-D24 disk I/O enclosure (back of rack drawer configuration)
2 Shows 12 disk-bay location
3 5787, 7031-T24 disk I/O enclosure (back of deskside configuration)
4 Disk drive bay identify LED locations-back (on System i models only)
Figure 1. Front view of your I/O enclosure
Figure 2. Back view of your I/O enclosure
5786, 5787, 7031-D24, and 7031-T24 removal and replacement procedures 5

Power
The base model enclosure contains one power supply. If your system contains only a single power
supply, you must have installed a power supply filler assembly in order to control airflow and EMC wave
leakage from your enclosure. If necessary, see System parts for the power supply filler part number.
To enable redundant power supply, you can install a second power supply in the enclosure. If your
enclosure contains two power supplies, either of the power supplies can provide the necessary voltages
and currents, independent of each other. Having redundant power supplies enables you to remove a
power supply without powering off the system. When operating correctly, each supply shares the current
load when powered on. If one of the power supplies goes into a fault state, an amber LED, located on the
faulted power supply, will be lit indicating a fault condition. The other operating power supply will
supply enough power to the system until the faulty supply can either be powered on or replaced.
The power supply assembly has the following LEDs:
vTwo green LEDs (ac power good and dc power good)
vTwo amber LEDs (the far right LED indicates the power supply status)
To better understand the LEDs located on your power supply, see the table in “Component and attention
LEDs” on page 28.
The following illustration identifies the location of the power supplies and the power supply LEDs.
Index number Description
1 5786, 7031-D24 disk I/O enclosure (back of rack drawer configuration)
2 Power supply bay locations
3 5787, 7031-T24 disk I/O enclosure (back of deskside configuration)
4 Power supply power, identify/fault LED locations
Cooling
Component cooling is provided by the following methods:
Figure 3. Back view of your I/O enclosure showing power supplies
6Removal and replacement procedures

5786, 7031-D24
Three fans located on the front bottom of the chassis
5787, 7031-T24
Three fans located on the front-left side of the chassis
If a fan fails, the other two fans accelerate so that they cool all components. Fan speeds also increase if a
power supply fails. Each fan has a green and amber LED located on the front of the unit. A solidly lit
(not blinking) amber LED indicates a fault or identify condition with the fan. A solidly lit (not blinking)
green LED indicates that the fan is operating correctly.
If your fan is not turning fast enough, the amber LED will be lit. The fan will require servicing.
Index number Description
1 5786, 7031-D24 disk I/O enclosure (front of rack drawer configuration)
2 Fan (blower) locations
3 5787, 7031-T24 disk I/O enclosure (front of deskside configuration)
SCSI
SCSI connections are provided by using up to four SCSI repeater cards for each I/O enclosure. The SCSI
repeater cards are available in both single and dual initiator versions. Each SCSI repeater card contains a
differential SCSI repeater, host terminators, system enclosure services (SES) module, SCSI drive
terminators (for termination at both ends of the SCSI bus), VPD modules, and controls for both power
and cooling. The SCSI repeater cards can be serviced concurrently, (with the system and I/O enclosure
power on), or nonconcurrently, (with the system powered off). The repeater card provides the following
functions to the I/O enclosure:
vProvide SCSI enclosure services at the SCSI address F (E and F for dual initiator version)
vRead the power supply unit vital product data (VPD) information
vMonitor the fan and power supply fault lines
vDrive the fan unit fault LEDs
vDrive the chassis fault LED
vMonitor the early power off warning (EPOW) signal from the power supplies
Figure 4. Cooling Fan locations on the front of your I/O enclosure
5786, 5787, 7031-D24, and 7031-T24 removal and replacement procedures 7

vSupport the hot plugging of disk drives
vControl the fan speed
vProvide chassis power on signal
vProvide redrive capabilities to the SCSI host bus
vProvide termination for host and drive buses
vDetect the disk drive and the disk drive operating condition
Index number Description
1 5786, 7031-D24 disk I/O enclosure (back of rack drawer configuration)
2 SCSI repeater card locations
3 5787, 7031-T24 disk I/O enclosure (back of deskside configuration)
Cabling
The cables that connect the enclosures allow some flexibility in placing the drawer and deskside unit. Up
to two disk drive enclosures can be connected to a system unit. For cabling information and
specifications, go to cables.
Disk drive
Use this procedure to remove and replace a disk drive.
Your system can be powered off or powered on while you replace the disk drive. If the system is running, you can
replace a disk drive with the power on. If the system is not running, or if the disk drive to be replaced is in the AIX®
or Linux root volume group (rootvg) and it is not protected with either a redundant array of independent disks
(RAID) or mirroring, use the procedure for replacing the disk drive with the power off.
1.
Do you want to replace the disk drive concurrently with system operations and the system unit powered on?
Figure 5. SCSI repeater card locations, located on the back of your I/O enclosure
8Removal and replacement procedures