IBM iSeries 270 Service Manual page 218

18. The cache battery pack can be removed from the 2780 or 5708 card without removing the card from
the system. Perform the following to ensure all cache data is written to disk before battery
replacement:
a. Select System Service Tools (SST). If you cannot get to SST, select DST. But do not perform an
IPL to get to DST.
b. Select Start a Service Tool —> Display/Alter/Dump —> Display/Alter storage —> Licensed
Internal Code (LIC) data.
c. Select Advanced analysis. You may have to page or scroll down to find this option.
d. Select the BATTERYINFO command.
e. On the Specify Advanced Analysis Options screen, type -LIST in the Options field and press
Enter.
19. Find the resource name of the card you are working with.
Note: The "Concurrently Maintainable Battery Pack" field should indicate "yes." If it does not indicate
"yes," then discontinue this procedure and contact your next level of support.
20. Return to the Specify Advanced Analysis Options screen and type -CONFR -IOA xxxx, where xxxx is
the card resource name.
21. Return to the Specify Advanced Analysis Options screen and type -LIST in the Options field and
press Enter.
Note: The "Battery pack can be safely replaced" field should indicate "yes." If it does not indicate
"yes," then discontinue this procedure and contact your next level of support.
22. Use the following illustration to locate the metal cover (A) that holds the battery pack. Pull out on the
push-rivet to release the metal cover.
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Hardware (Remove and Replace; Part Locations and Listings)