IBM Power Systems, 9109-RMD, 8248-L4T, 8408-E8D Series Manual

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Power Systems

Serial-attached SCSI RAID enablement and cache battery pack

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Power Systems

Serial-attached SCSI RAID enablement and cache battery pack

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Note

Before using this information and the product it supports, read the information in “Safety notices” on page v, “Notices” on page 53, 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.

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

Safety notices .................................v

SAS RAID enablement and cache battery pack for the 8248-L4T, 8408-E8D, or

9109-RMD ..................................1

Removing the 175 MB Cache RAID – Dual IOA Enablement card from the 8248-L4T,

8408-E8D, or 9109-RMD .............................3

Installing the 175 MB Cache RAID – Dual IOA Enablement card in the 8248-L4T,

8408-E8D, or 9109-RMD .............................9

Removing and replacing the cache battery pack for the 8248-L4T, 8408-E8D, or

9109-RMD ..................................11

Common procedures for installable features .................19

Before you begin ...............................21

Identifying a part ...............................25

Control panel LEDs.................................25

Identifying a failing part in an AIX system or logical partition ..................26

Locating a failing part in an AIX system or logical partition ..................26

Activating the indicator light for the failing part ......................27

Deactivating the failing-part indicator light ........................27

Identifying a failing part in an IBM i system or logical partition ..................27

Activating the failing-part indicator light ........................27

Deactivating the failing-part indicator light ........................28

Identifying a failing part in a Linux system or logical partition ..................29

Locating a failing part in a Linux system or logical partition ..................29

Finding the location code of a failing part in a Linux system or logical partition ...........29

Activating the indicator light for the failing part ......................29

Deactivating the failing-part indicator light ........................29

Locating a failing part in a Virtual I/O Server system or logical partition...............30

Identifying a part by using the Virtual I/O Server .....................30

Starting the system or logical partition ......................31

Starting a system that is not managed by an HMC or an SDMC..................31

Starting a system or logical partition by using the HMC ....................32

Starting a system or virtual server by using the SDMC .....................32

Stopping a system or logical partition ......................35

Stopping a system that is not managed by an HMC or an SDMC .................35

Stopping a system by using the HMC ..........................36

Stopping a system by using the SDMC ..........................37

Removing and replacing covers for the 8248-L4T, 8408-E8D, or 9109-RMD ......39

Removing the front cover from the 8248-L4T, 8408-E8D, or 9109-RMD................39

Installing the front cover on the 8248-L4T, 8408-E8D, or 9109-RMD .................39

Verifying the installed part ...........................41

Verifying an installed feature or replaced part in an AIX system or logical partition ...........41

Verifying the installed part in an IBM i system or logical partition .................43

Deactivating the failing-part indicator light ........................44

Verifying the installed part in a Linux system or logical partition .................44

Verifying an installed part by using stand-alone diagnostics ...................45

Verifying the installed part by using the HMC........................46

Activating and deactivating LEDs by using the HMC ....................47

Deactivating a system attention LED or partition LED by using the HMC ............47

Activating or deactivating an identify LED by using the HMC ................47

Viewing serviceable events by using the HMC.......................47

Verifying the installed part by using the SDMC .......................48

Activating and deactivating LEDs by using the SDMC ....................49

Deactivating a system attention LED or partition LED by using the SDMC ............49

Activating or deactivating an identify LED by using the SDMC ................49

Viewing serviceable events by using the SDMC ......................50

Verifying an installed part or replaced part on a system or logical partition by using Virtual I/O Server tools . . 50

Verifying the installed part by using VIOS ........................50

Verify the replacement part by using VIOS ........................50

Notices ...................................53

Trademarks ...................................54

Electronic emission notices ..............................54

Class A Notices .................................54

Class B Notices .................................58

Terms and conditions ................................61

iv Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Safety notices

Safety notices may be printed throughout this guide:

v DANGER notices call attention to a situation that is potentially lethal or extremely hazardous to

people.

v CAUTION notices call attention to a situation that is potentially hazardous to people because of some

existing condition.

v Attention 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.

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: v Connect power to this unit only with the IBM provided power cord. Do not use the IBM

provided power cord for any other product.

v Do not open or service any power supply assembly. v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration

of this product during an electrical storm.

v The product might be equipped with multiple power cords. To remove all hazardous voltages,

disconnect all power cords.

v Connect 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.

v Connect any equipment that will be attached to this product to properly wired outlets. 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 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 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Observe the following precautions when working on or around your IT rack system:

v Heavy equipment–personal injury or equipment damage might result if mishandled.

v Always lower the leveling pads on the rack cabinet.

v Always install stabilizer brackets on the rack cabinet.

v To 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.

v Rack-mounted devices are not to be used as shelves or work spaces. Do not place objects on top

of rack-mounted devices.

v Each 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.

v Connect 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.

v An 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

v Do 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.

v Do 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.

v Consideration 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:

v Reduce 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.

v If the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from

the suite.

v Inspect the route that you plan to take to eliminate potential hazards.

v Verify 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.

v Verify that all door openings are at least 760 x 230 mm (30 x 80 in.).

v Ensure that all devices, shelves, drawers, doors, and cables are secure.

v Ensure that the four leveling pads are raised to their highest position.

v Ensure that there is no stabilizer bracket installed on the rack cabinet during movement.

v Do not use a ramp inclined at more than 10 degrees.

v When 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.

v If 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 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

(L003)

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:

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 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:

v Network telecommunications facilities v Locations 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.

x Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

SAS RAID enablement and cache battery pack for the

8248-L4T, 8408-E8D, or 9109-RMD

You might need to configure redundant array of independent disks (RAID) on the serial-attached SCSI

(SAS) disk drives in your system enclosure. Use these instructions to install features to enable RAID on

your IBM PowerLinux

(9109-RMD) systems.

The following instructions will enable you to install SAS RAID enablement cards to prepare your system

to use SAS disk drives in a RAID configuration.

To find information on installing adapters or configuring RAID on your system see the following links:

v To view the PCI adapters, see PCI adapters

v To view the SAS RAID controllers for AIX

v To view the SAS RAID controllers for IBM i operating system, see SAS RAID controllers for IBM i and

the IBM i Information Center website (http://www.ibm.com/systems/i/infocenter).

v To view the SAS RAID controllers for Linux operating system, see SAS RAID controllers for Linux

™

7R4 (8248-L4T), the IBM Power®750 (8408-E8D), and the IBM Power 760

operating system, see SAS RAID controllers for AIX

2 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Removing the 175 MB Cache RAID – Dual IOA Enablement

card from the 8248-L4T, 8408-E8D, or 9109-RMD

Learn how to remove an 175 MB Cache RAID – Dual IOA Enablement card from the 8248-L4T, 8408-E8D,

or 9109-RMD system.

This feature is used to enable write cache on the two embedded SAS RAID controllers of the disk or

media backplane by providing the necessary rechargeable batteries for memory backup. It also enables

the two embedded SAS RAID controllers to work as dual storage IOAs, that is, high availability (HA)

RAID mode. This feature plugs in to the disk or media backplane and enables a 175 MB write cache on

each of the two embedded RAID controllers by providing two rechargeable batteries with associated

charger circuitry. The write cache can provide additional I/O performance for attached disk or solid-state

drives, particularly for RAID 5 and RAID 6. The write cache contents are mirrored for redundancy

between the two RAID adapters resulting in an effective write cache size of 175 MB. The batteries

provide power to maintain both copies of write-cache information in the event power is lost.

To remove 175 MB Cache RAID – Dual IOA Enablement card, complete the following steps:

1. Perform prerequisite tasks. For instructions, see “Before you begin” on page 21.

2. Begin with the power on.

Note:

To prevent data loss, both cache battery packs must be in an error state before the 175 MB Cache RAID – Dual IOA Enablement card is removed from the system.

If you have powered the system off, power it on before you continue.

3. Select your operating system:

v AIX: Go to step 4. v IBM i: Go to step 6 on page 4. v Linux: Go to step 8 on page 4.

4. Force the cache battery pack into an error state on the AIX operating system (to prevent possible data loss), as follows:

Attention: This step must be performed for both cache batteries; therefore, each of the embedded SAS RAID controllers must be selected in the following steps:

a. Navigate to the IBM SAS Disk Array Manager by completing the following steps:

1) At the command prompt, type smit, and press Enter.

2) Select Devices.

3) Select Disk Array.

4) Select IBM SAS Disk Array.

5) Select IBM SAS Disk Array Manager from the menu that has options for configuring and

managing the IBM SAS RAID Controller.

b. Select Diagnostics and Recovery Options. c. Select Controller Rechargeable Battery Maintenance. d. Select Force Controller Rechargeable Battery Error. e. Select the PCI Express x8 Planar 3 Gb SAS RAID Adapter for the battery you want to replace.

This option places the battery into the error state, which requires it to be replaced.

f. Repeat stepsa-efortheother PCI Express x8 Planar 3 Gb SAS RAID Adapter in this same

system enclosure.

g. Display rechargeable battery information to determine whether it is safe to replace the cache

battery pack.

1) Navigate to the IBM SAS Disk Array Manager. For details, see step 4a.

2) Select Diagnostics and Recovery Options.

3) Select Controller Rechargeable Battery Maintenance.

4) Select Display Controller Rechargeable Battery Information.

5) Select IBM SAS RAID Controller. It is safe to replace the cache battery pack when Yes is

displayed next to Battery pack can be safely replaced. You might need to reselect the option Display Controller Rechargeable Battery Information multiple times as it might take several

minutes before it is safe to replace the cache battery pack.

h. Verify that the cache present LEDs are not flashing.

5. Go to step 9 on page 5.

6. Force the cache battery pack into an error state on IBM i (to prevent possible data loss), as follows

on the system or partition that contains the adapter:

Note: This step must be performed for both cache batteries; therefore, each of the embedded SAS RAID controllers must be selected in the following substeps:

a. Be sure that you are signed on to the system with at least service level authority. b. Type strsst on the command line and press Enter. c. Type your service tools user ID and service tools password on the System Service Tools (SST)

Sign On display. Press Enter.

d. Select Start a Service Tool from the System Service Tools (SST) display and press Enter. e. Select Hardware Service Manager from the Start a Service Tool display and press Enter. f. Select Work with resources containing cache battery packs from the Hardware Service Manager

display and press Enter.

g. Select Force battery pack into error state for the embedded SAS RAID adapter in the system

enclosure that you are working with from the Work with Resources containing cache battery packs display and press Enter.

h. On the Force Battery Packs Into Error State display, verify that the correct I/O adapter has been

selected and press the function key that confirms your choice.

i. Return to the Work with Resources containing cache battery packs menu and select Display

battery information. Ensure that the field Safe to replace cache battery is set to Yes. This might

take several minutes and you might need to press the Refresh key to see the field update.

j. Repeat the substeps from a to i for the other embedded SAS RAID controller in this same system

enclosure.

7. Go to step 9 on page 5.

8. Force the cache battery pack into an error state on the Linux operating system to prevent possible

data loss, as follows:

Note: This step must be performed for both cache batteries; therefore, each of the embedded SAS RAID Controllers must be selected in the following substeps:

a. Run the iprconfig utility by typing iprconfig. b. Select Work with disk unit recovery. c. Select Work with resources containing cache battery packs. d. Select your adapter and type 2. Then press Enter to force the battery error.

Note: This option places the battery into the error state, which requires it to be replaced.

e. If you are sure that you want to force a battery error, type c to confirm. If you do not want to

force a battery error, type q to cancel.

4 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Repeat the substeps from a to e for the other embedded SAS RAID controller in this same system enclosure.

f. Display rechargeable battery information to determine whether it is safe to replace the cache

battery pack.

1) Return to the Work with resources containing cache battery packs.

2) Select your adapter and type 1.

3) Press Enter to display battery information. It is safe to replace the cache battery pack when

Yes is displayed next to Battery pack can be safely replaced. You might need to reselect the option Display Controller Rechargeable Battery Information multiple times because it might take several minutes before it is safe to replace the cache battery pack.

g. Verify that the cache present LEDs are not flashing.

9. Remove the front cover. See “Removing the front cover from the 8248-L4T, 8408-E8D, or 9109-RMD”

on page 39.

10. Locate the 175 MB Cache RAID - Dual IOA Enablement card slot (P2-C9-C1).

Figure 1. Slot location for the 175 MB Cache RAID - Dual IOA Enablement card (P2-C9-C1)

11. Check the cache battery LEDs by examining the LED (green) over each cache battery pack (C).

Removing the 175 MB Cache RAID – Dual IOA Enablement card 5

Figure 2. Cache battery LEDs

Is either of the cache battery LEDs flashing?

Yes, the green LED is flashing. No, the green LED is not flashing. ↓ Go to step 13.

12. Stop removing the 175 MB Cache RAID - Dual IOA Enablement card.

Note: The flashing LED indicates that there might be cached data that has not been saved. This data will be lost if the battery or 175 MB Cache RAID - Dual IOA Enablement card is removed at this time. Complete this service procedure without replacing the 175 MB Cache RAID - Dual IOA Enablement card. Retry the procedure from the beginning to ensure that all cache data is written to disk before the 175 MB Cache RAID - Dual IOA Enablement card is removed.

13. Stop the system. For instructions, see “Stopping a system or logical partition” on page 35.

14. Disconnect the power source from the system by unplugging the system.

Attention: You must disconnect the power source from the system by disconnecting all power cords to prevent system damage during this procedure.

Note: This system is equipped with a second power supply. Before continuing with this procedure, ensure that all power sources to the system have been completely disconnected.

(L003)

6 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

15. Remove the 175 MB Cache RAID – Dual IOA Enablement card at location P2-C9-C1. Go to next step 16

Attention: Do not remove the 175 MB Cache RAID – Dual IOA Enablement card if the LED (C) is flashing as shown in Figure 2, because this indicates that cache data exists.

16. Pull up slightly on the lever (A) and rotate it out to the right as shown in the following figure.

Figure 3. 175 MB Cache RAID - Dual IOA Enablement card in a rack-mounted model

17. Slide the RAID battery card out of the slot.

18. Replace the 175 MB Cache RAID – Dual IOA Enablement card. For information, see “Installing the

175 MB Cache RAID – Dual IOA Enablement card in the 8248-L4T, 8408-E8D, or 9109-RMD” on page

Removing the 175 MB Cache RAID – Dual IOA Enablement card 7

8 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Installing the 175 MB Cache RAID – Dual IOA Enablement card in the 8248-L4T, 8408-E8D, or 9109-RMD

Learn about installing a 175 MB Cache RAID – Dual IOA Enablement card in the 8248-L4T, 8408-E8D, or 9109-RMD system.

This feature is used to enable write cache on the two embedded SAS RAID controllers of the disk or media backplane by providing the necessary rechargeable batteries for memory backup. It also enables the two embedded SAS RAID controllers to work as dual storage IOAs, that is, high availability (HA) RAID mode. This feature plugs in to the disk or media backplane and enables a 175 MB write cache on each of the two embedded RAID controllers by providing two rechargeable batteries with associated charger circuitry. The write cache can provide additional I/O performance for attached disk or solid-state drives, particularly for RAID 5 and RAID 6. The write cache contents are mirrored for redundancy between the two RAID adapters resulting in an effective write cache size of 175 MB. The batteries provide power to maintain both copies of write-cache information in the event power is lost.

To install the 175 MB Cache RAID – Dual IOA Enablement card, complete the following steps:

1. Remove the 175 MB Cache RAID – Dual IOA Enablement card. For instructions, see “Removing the

175 MB Cache RAID – Dual IOA Enablement card from the 8248-L4T, 8408-E8D, or 9109-RMD” on page 3.

2. Locate the 175 MB Cache RAID – Dual IOA Enablement card slot (P2-C9-C1).

Figure 4. Slot location for the 175 MB Cache RAID – Dual IOA Enablement card

3. With the lever (A) in the extended position, slide the 175 MB Cache RAID – Dual IOA Enablement

card into the slot as shown in Figure 2.

4. Rotate the lever toward the enclosure to lock the card.

Figure 5. Installing the 175 MB Cache RAID – Dual IOA Enablement card

5. Install the front cover. For instructions, see “Installing the front cover on the 8248-L4T, 8408-E8D, or 9109-RMD” on page 39.

6. Start the system. For instructions, see “Starting the system or logical partition” on page 31.

7. Verify that the new resource is operational. For instructions, see “Verifying the installed part” on page

41.

10 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Removing and replacing the cache battery pack for the 8248-L4T, 8408-E8D, or 9109-RMD

Learn how to remove and replace the cache battery pack.

To remove and replace the cache battery pack, complete the following steps:

1. Perform prerequisite tasks. For instructions, see “Before you begin” on page 21.

2. Begin with the power on.

To prevent data loss, the cache battery pack must be in an error state before the 175 MB Cache RAID – Dual IOA Enablement card is removed from the system.

If you have powered the system off, power it on before you continue.

3. Select your operating system:

v AIX: Go to step 4. v IBM i: Go to step 8. v Linux: Go to step 6.

4. Force the cache battery pack into an error state on the AIX operating system (to prevent possible data loss), as follows:

a. Navigate to the IBM SAS Disk Array Manager by completing the following steps:

1) At the command prompt, type smit and press Enter.

2) Select Devices -> Disk Array -> IBM SAS Disk Array.

3) Select IBM SAS Disk Array Manager from the menu that has options for configuring and

managing the IBM SAS RAID Controller.

b. Select Diagnostics and Recovery Options -> Controller Rechargeable Battery Maintenance ->

Force Controller Rechargeable Battery Error.

c. Select the PCI Express x8 Planar 3 Gb SAS RAID Adapter whose battery you want to replace.

This option places the battery into the error state, which requires it to be replaced.

d. Determine whether it is safe to replace the cache battery pack. See the following Displaying

rechargeable battery information procedure. It is safe to replace the cache battery pack when Yes is displayed next to Battery pack can be safely replaced. You might need to reselect the option Display Controller Rechargeable Battery Information multiple times because it might take several minutes before it is safe to replace the cache battery pack.

e. Verify that the cache present LEDs are not flashing. f. Display rechargeable battery information

1) Navigate to the IBM SAS Disk Array Manager by using the previous procedure.

2) Select Diagnostics and Recovery Options -> Controller Rechargeable Battery Maintenance ->

Display Controller Rechargeable Battery Information -> IBM SAS RAID Controller.

5. Go to step 9.

6. Force the cache battery pack into an error state on the IBM i (to prevent possible data loss), as

follows on the system or partition that contains the adapter:

a. Be sure that you are signed on to the system with at least service level authority. b. Type strsst on the command line, and press Enter. c. Type your service tools user ID and service tools password on the System Service Tools (SST)

Sign On display. Press Enter.

d. Select Start a Service Tool from the System Service Tools (SST) display, and press Enter. e. Select Hardware Service Manager from the Start a Service Tool display, and press Enter.

f. Select Work with resources containing cache battery packs from the Hardware Service Manager

display, and press Enter.

g. Select Force battery pack into error state for the embedded SAS RAID adapter in the system

enclosure that you are working with from the Work with Resources containing cache battery packs display, and press Enter.

h. On the Force Battery Packs Into Error State display, verify that the correct I/O adapter has been

selected, and press the function key that confirms your choice.

i. Return to the Work with Resources Containing Cache Battery Packs display, and select Display

battery information. Ensure that the Safe to replace cache battery field is set to Yes. This might

take several minutes and you might need to press the Refresh key to see the updated field.

7. Go to step 9.

8. Force the cache battery pack into an error state on the Linux operating system (to prevent possible

data loss), as follows:

a. Run the iprconfig utility by typing iprconfig. b. Select Work with disk unit recovery -> Work with resources containing cache battery packs. c. Select your adapter and type 2. Then press Enter to force the battery error.

Note: This option places the battery into the error state, which requires it to be replaced.

d. If you are sure you want to force a battery error, type c to confirm. If you do not want to force a

battery error, type q to cancel.

e. Determine whether it is safe to replace the cache battery pack. See Displaying rechargeable

battery information. It is safe to replace the cache battery pack when Yes is displayed next to Battery pack can be

safely replaced. You might need to reselect the option Display Controller Rechargeable Battery Information multiple times because it might take several minutes before it is safe to replace the

cache battery pack.

f. Verify that the cache present LEDs are not flashing. g. Display rechargeable battery information

1) Return to the Work with resources containing cache battery packs.

2) Select your adapter, and type 1.

3) Press Enter to display the battery information.

9. Remove the front cover. For instructions, see “Removing the front cover from the 8248-L4T,

8408-E8D, or 9109-RMD” on page 39.

10. Locate the cache battery pack slots P2-C9-C1-E1 and P2-C9-C1-E2.

12 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Figure 6. Slot locations of the cache battery pack P2-C9-C1-E1 and P2-C9-C1-E2

11. Check the cache battery LEDs by examining the green LEDs (C) that is located above the cache battery pack.

Figure 7. Cache battery LEDs

Is the cache battery LED flashing?

Yes, the LED is flashing. No, the LED is not flashing. ↓ Go to step 13.

12. Stop removing the cache battery pack.

Removing and replacing the cache battery pack 13

Note: The flashing LED indicates that there is cached data on the battery that has not been saved. This data will be lost if the battery is removed at this time. Complete this service procedure without replacing the battery, and then retry it to ensure all cache data is saved before the battery is replaced and go to step 18.

13. Remove the cache battery pack as follows: Attention: Do not remove the cache battery if the green LED (C) in Figure 7 on page 13 is flashing,

because this indicates cache data exists.

Note: This card has two cache battery packs. Replace only the specific failing battery. If you have a pull label on the battery pack, see Figure 8 and complete the following steps:

a. Push the tab (A) fully to the right to disengage the battery retaining tab. b. Pull on the label tab of the cache battery pack (B) to remove it from the controller.

Figure 8. Removing the cache battery pack in a rack-mounted model with the pull label

If you have release lever on the battery pack, see Figure 9 on page 15 and complete the following steps:

a. Squeeze the release lever (C) together to disengage the battery pack. b. Pull the cache battery pack (D) to remove it from the controller.

14 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Figure 9. Removing the cache battery pack in a rack-mounted model with the release lever

14. Replace the cache battery pack as follows:

Attention: Ensure that the cache battery pack is disconnected for at least 60 seconds before you connect the new battery. This is the minimum amount of time needed for the card to recognize that the battery has been replaced.

a. Slide the new replacement cache battery pack into the controller until it is fully seated. b. Verify that the tab (A) returns to the latched position.

Removing and replacing the cache battery pack 15

Figure 10. Installing the cache battery pack

15. Restart the adapter's write cache by completing the following steps: Select your operating system:

v AIX: Go to step 16. v IBM i: Go to step 17. v Linux: Go to step 18.

16. Complete the following steps for the AIX operating system: a. Navigate to the IBM SAS Disk Array Manager by using the information in step 4a. b. Select Diagnostics and Recovery Options -> Controller Rechargeable Battery Maintenance ->

Start Adapter Cache.

c. Select the controller with the battery you just replaced, and press Enter. d. Go to step 19.

17. Complete the following steps for IBM i: a. Return to the Work with Resources containing Cache Battery Packs display by using the

information in steps 8a - 8f and select the Start IOA cache. Press Enter.

b. Ensure that you receive the message Cache was started. c. Go to step 19.

18. Complete the following steps for the Linux operating system: a. Run the iprconfig utility by typing iprconfig. b. Select Work with disk unit recovery. -> Work with resources containing cache battery packs. c. Start the I/O adapter cache on the adapter for the battery that you just replaced by typing 3, and

press Enter.

d. Go to step 19.

19. Install the front cover. For instructions, see “Installing the front cover on the 8248-L4T, 8408-E8D, or

9109-RMD” on page 39

20. Close the rear door on the unit you are servicing.

16 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

21. Verify that the new resource is operational. For instructions, see “Verifying the installed part” on page 41.

Removing and replacing the cache battery pack 17

18 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Common procedures for installable features

This section contains all the common procedures that are related to installing, removing, and replacing features.

20 Power Systems: Serial-attached SCSI RAID enablement and cache battery pack

Before you begin

Observe these precautions when you are installing, removing, or replacing features and parts.

These precautions are intended to create a safe environment to service your system and do not provide steps for servicing your system. The installation, removal, and replacement procedures provide the step-by-step processes required to service your system.

DANGER

When working on or around the system, observe the following precautions:

provided power cord for any other product.

v Do not open or service any power supply assembly. v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration

of this product during an electrical storm.

v The product might be equipped with multiple power cords. To remove all hazardous voltages,

disconnect all power cords.

v Connect 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.

you open the device covers, unless instructed otherwise in the installation and configuration procedures.

v Connect 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