To replace the 57CF cache battery pack, see Removing and replacing the 175 MB cache RAID - dual IOA
enablement card cache battery packRemoving and replacing the 175 MB cache RAID - dual IOA
enablement card cache battery pack.
Removing and replacing a cache battery pack
Use this procedure to replace the cache battery pack on a battery card.
Identify the system that you will be working on by using the identify the system process to turn on the
system locate (blue) indicator. For more information, see Control panel LEDs.
Attention: Before continuing with this procedures, determine that 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.
Attention: To maintain system availability and prevent possible data loss, it is important to understand
that these features have implications on the serial-attached SCSI (SAS) configuration and data accessibility
of the system. Review the SAS subsystem topic to understand the various SAS configuration and service
considerations.
Before servicing or installing any features, review the I/O configurations for each logical partition on
your system. It is important to understand the differences between the various configurations and the
resulting service considerations. In addition, consider possible impacts to the following areas:
v Logical partitions and their I/O adapter assignments
v RAID array configurations
v Physical disk locations
v Path to your boot device
Complete the following steps to replace a nonconcurrent maintainable battery pack:
1. Remove the controller from the system. For more information, see Removing the 8202-E4B, 8202-E4C,
8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D RAID/cache storage controller.
2. Place the controller on a surface that is electrostatic-discharge protected.
3. Unplug the battery connector (A) from its connector on the adapter, squeezing the retaining latch
while gently pulling on the plug. The plug connects to the board in only one way; therefore, it cannot
be inserted incorrectly during the replacement procedure.
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.
42 SAS RAID controllers for IBM i