HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

Upgrading the Subsystem
176 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Figure 73 shows only a portion of the resulting display—an arrow points to
the pertinent status indication.
Figure 73: Screen display indicating cache status and whether data remains in
cache
Note: Repeat step 15 (on page 175) on both controllers (“this controller” and the
“other controller”) until no unwritten data remains in either cache module memory.
If unwritten data is present after several minutes, verify that writeback cache was
disabled on all units by using the SHOW UNITS FULL command. For any unit with
writeback cache enabled, return to step 14 (on page 175) and proceed.
16. Shut down controller B by entering the following command:
HSGA> SHUTDOWN OTHER_CONTROLLER
Note: Disregard any messages pertaining to misconfigured controllers or failover
status.
Cache:
256 megabyte write cache, version 0022
Cache is GOOD
No unflushed data in cache
CACHE_FLUSH_TIMER=1 SECOND