HP XP7 Storage - Manual (Page 141)

3. Remove all of the snapshots in the unneeded P-VOLs (see “Resynchronizing Fast Snap pairs”
(page 83) ).
4. Complete the SIMs related to cache management devices (see “Workflow for correcting
problems related to SIMs” (page 141) ).
Related topics
•
“Viewing the number of cache management devices” (page 110) .
•
“Workflow for correcting problems related to SIMs” (page 141) .
•
“Calculating the number of the remaining cache management devices” (page 141) .
Calculating the number of the remaining cache management devices
Use the following formula to calculate the number of remaining cache management devices:
number-of-cache-management-devices = 65,280 -
number-of-cache-management-devices-being-used
Related topics
•
“Viewing the number of cache management devices” (page 110) .
Workflow for correcting problems related to SIMs
You must reserve enough cache management devices. If a warning SIM is issued before you deplete
cache management devices, a problem has not necessarily occurred. Using the storage system
and depleting the cache management devices blocks the FS pair and suspends the pair (“PSUE”
status).
NOTE: You cannot store snapshot data or create additional FS pairs using other P-VOLs while
the pair is suspended.
Correct pool-related Service Information Messages (SIMs) for the following, if they occur:
•
Reference code 601XXX: The pool usage rate exceeds the threshold.
•
Reference code 602XXX: The pool is blocked.
•
Reference code 602FFE: Multiple pools are blocked.
•
Reference code 603000: The value for Snapshot Estimated Manageable Capacity is less than
128TB.
•
Reference code 624000: You have reached capacity in the SM.
XXX indicates the pool ID.
Use the following workflow to correct a problem related to a SIM:
1. Complete one of the following:
For reference code 601XXX or 602XXX:
•
Recover the pool (“Normal” status).
For more information about the countermeasures of these codes, see “General
troubleshooting” (page 138) .
•
(For reference code 624000) Complete one of the following:
- Delete unused pools.
- Delete unused FS pairs.
- Delete the unused V-VOLs that you created using THP or Smart.
General troubleshooting 141