POWER5 information.

Replacing the cache battery pack on the 573D, 1907, or 5727

You might need to replace the cache battery pack. Use the procedure in this section to perform this task.

The following procedure describes how to replace a cache battery pack on the 573D, 1907, or 5727 ULTRA320 SCSI RAID enablement adapter. Replacing this feature is a customer task. You can perform this task yourself, or contact an authorized service provider to perform the task for you. You might be charged a fee by the authorized service provider for this service.
Important: Removing the cache battery with the system or partition already in a powered-off state might result in the loss of customer data. If the system has been powered off prior to the battery service action, you must IPL to DST and continue this procedure before replacing the battery.
Note: The 1907 adapter is not supported by i5/OS®.

For information about replacing the cache battery pack on an AIX® system or partition, see the PCI-X SCSI RAID Controller Reference Guide for AIX in the IBM® System p® and AIX Information Center Web site at http://publib.boulder.ibm.com/infocenter/pseriesLink outside information center.

For information about replacing the cache battery pack on a Linux® system or partition, see the PCI-X SCSI RAID Controller Reference Guide for Linux in the IBM System p and AIX Information Center Web site at http://publib.boulder.ibm.com/infocenter/pseriesLink outside information center.

To replace the cache battery pack using i5/OS, complete the following procedure:

  1. Ensure that the cache battery pack is in an error state before replacing it. This action will prevent possible data loss by ensuring that all cache data is written to disk before battery replacement. To force the cache battery pack into an error state, do the following steps on the system or partition that is using the 573D or 5727:
    1. Be sure that you are signed on to the system with at least service level authority.
    2. On the command line, type strsst and press Enter.
    3. On the System Service Tools (SST) Sign On display, type your service tools user ID and service tools password. Press Enter.
    4. On the System Service Tools (SST) display, select Start a Service Tool. Press Enter.
    5. On the Start a Service Tool display, select Hardware Service Manager. Press Enter.
    6. On the Hardware Service Manager display, select Work with resources containing cache battery packs. Press Enter.
    7. On the Work with Resources containing Cache Battery Packs display, select Force battery pack into error state for the I/O card. Press Enter.
    8. 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.
  2. Remove the 573D or 5727 RAID enablement card.

    See the Backplanes and cards topic for instructions on removing RAID enablement cards.

    1. Follow the instructions for preparing the system.
    2. Follow the instructions for removing the 573D or 5727.
    3. After removing the card, return here.
  3. To replace the cache battery pack, do the following.
    CAUTION:
    The battery is a lithium ion battery. To avoid possible explosion, do not burn. 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. (C007)
    Attention:
    • Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic discharge from damaging your hardware.
    • When using a wrist strap, follow all electrical safety procedures. A wrist strap is for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.
    • If you do not have a wrist strap, just prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted metal surface of the system for a minimum of 5 seconds.
    1. Locate the casing A that contains the cache battery pack.
      graphic of the 573D or 5727 ULTRA320 SCSI RAID adapter
    2. Squeeze the casing A to remove the cache battery pack from the adapter.
  4. Disconnect the plug that connects the cache battery pack and the card. Squeeze the retaining latch while gently pulling on the plug. The plug connects to the board in only one way so that it cannot be inserted incorrectly during the replacement procedure.
  5. Separate the cache battery pack from the battery casing. Save the battery casing. A casing is not provided with the replacement cache battery pack.
    Note: Ensure that the cache battery pack is disconnected for at least 60 seconds before connecting the new battery. This is the minimum amount of time needed for the adapter to recognize that the battery has been replaced.
  6. Install the new cache battery pack into the battery casing.
  7. Connect the cache battery pack plug to the card. The plug connects to the card in only one way, so it cannot be inserted incorrectly.
  8. Replace the casing A and push in on the tab to secure the cover. Install the battery and casing onto the adapter by inserting the tab and squeezing the case to insert the other side into the adapter.
  9. Reinstall the card. See the Backplanes and cards topic.
  10. Verify that the part was installed correctly. See the Verify the installed part topic.