HP XP7 Storage User Manual
Page 151
Causes and Solutions
Problems
•
Adjust the value of Subscription Limit for the pool. See
the pool subscription limit” (page 130)
•
Ask HP Technical Support to solve the problem.
Causes:
Cannot add a pool-VOL.
•
1,024 pool-VOLs are already defined in the pool.
•
The pool-VOL does not fill the requirements for a pool-VOL.
•
Something in the storage system is blocked.
Solution:
•
Change the setting of the LDEV to satisfy the requirement of the
Pool-VOL. See
“Pool-VOL requirements” (page 55)
.
Causes:
•
A failure occurred in data drives greater than the parity group
redundancy. The redundancy of the parity group depends on the
number of the blocked PDEVs (data drives). For example:
◦
When the parity group configuration is 3D+1P and failures occur
in two or more drives, the failures are considered to have occurred
in data drives beyond the parity group redundancy.
◦
When the parity group configuration is 6D+2P and failures occur
in three or more drives, the failures are considered to have
occurred in data drives beyond the parity group redundancy.
Solutions:
•
Ask HP Technical Support to solve the problem.
A pool-VOL is blocked. SIM code 627XXX is
reported.
Solutions:
•
Ask HP Technical Support to solve the problem.
A pool is blocked.
Causes:
A pool cannot be restored.
•
Processing takes time, because something in the storage system is
blocked.
•
Usage of the pool has reached to 100%.
Solutions:
•
After waiting for a while, refresh the display, and check the pool
status.
•
Add some pool-VOLs to the pool to increase the capacity of the pool.
See
“Increasing pool capacity” (page 134)
).
•
Perform the operation to reclaim zero pages in order to release pages
in which zero data are stored. See
“About releasing pages in a THP
•
Ask HP Technical Support to solve the problem.
Causes:
A pool cannot be deleted.
•
The pool usage is not 0.
•
External volumes are removed from the pool before you delete the
pool.
•
THP V-VOLs have not been deleted.
Solutions:
•
Confirm that the pool usage is 0 after the THP V-VOLs are deleted,
and then you can delete the pool.
•
Ask HP Technical Support to solve the problem.
Troubleshooting Thin Provisioning Z
151