HP XP P9000 Provisioning for Open Systems User Guide

Causes and SolutionsProblems
Causes:Cannot create a THP V-VOL.
• Usage of the pool has reached to 100%.
• Something in the storage system is blocked.
• Too many THP V-VOLs are assigned, or Subscription Limit is too low.
Solutions:
• Add some pool-VOLs to the pool. See “Increasing pool capacity”
(page 152).
• 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
V-VOL” (page 159).
• Increase the value of Subscription Limit for the pool. See “Changing
the pool subscription limit” (page 148).
• 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 76).
Causes:
• A failure occurred in two or more data drives.
Solutions:
• Ask HP Technical Support to solve the problem.
A pool-VOL is blocked. SIM code 627XXX is
reported.
Causes:
• The breaker has been turned off and the shared memory has been
lost, and then the system has been started.
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.
• The pool-VOL is blocked.
• The THP V-VOL capacity has increased but has been reduced back
to the previous THP V-VOL capacity.
• Usage of the pool has reached to 100%.
Solutions:
• After waiting for a while, click File > Refresh All on the menu bar of
the Remote Web Console main window, and check the pool status.
• If you increased the THP V-VOL capacity but the THP V-VOL capacity
has been reduced back to the previous THP V-VOL capacity, follow
the instructions in “Requirements for increasing THP V-VOL capacity”
(page 78) to make sure that the capacity is increased, and then
restore the pool.
• Add some pool-VOLs to the pool to increase the capacity of the pool.
See “Increasing pool capacity” (page 152)).
210 Troubleshooting