HP XP P9500 Storage - Manual (Page 209)

8 Troubleshooting
The information in this chapter can help you troubleshoot problems when provisioning a storage
system.
If a failure occurs and a message appears, see the HP XP P9000 Remote Web Console Messages
for further instructions.
For problems and solutions related to using Remote Web Console, see the HP XP P9000 Remote
Web Console User Guide.
Troubleshooting VLL
If a failure occurs while you are operating, see the HP XP P9000 Remote Web Console Messages.
For the problems and solutions regarding the Remote Web Console, see the HP XP P9000 Remote
Web Console User Guide
Troubleshooting Thin Provisioning
The following table provides troubleshooting instructions for using Thin Provisioning.
Causes and Solutions Problems
Cause:
•
Shared memory for the V-VOL management area is not installed.
Solution:
•
Call HP Technical Support and check if the shared memory for the
V-VOL management area is installed.
Cannot install Thin Provisioning.
Causes: Pool usage level exceeds the threshold.
•
Too many THP V-VOLs are associated with a pool, or too much data
is stored in a pool.
• Capacity of the pool is insufficient.
•
The threshold of the pool is too low.
Solutions:
•
Add some pool-VOLs to increase the capacity of 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) .
•
Set a larger value to the threshold of the pool. See “Changing pool
thresholds” (page 147) .
After correcting the causes of SIM 620XXX and 621XXX or 620XXX
and 626XXX, you need to complete the SIMs (see
“Manually completing
a SIM” (page 149) ). If you do not complete the SIMs, no new SIM will
occur even if the usage level increases and again exceeds the threshold
(target SIM codes are 620XXX, 621XXX, and 626XXX).
SIMs 620XXX, 621XXX, 625000, and 626XXX are automatically
completed if you increase pool capacity by adding pool-VOLs, because
the condition that caused the SIM is removed.
Caution: You need free volumes to add as pool-VOLs. If there are no
free volumes, create new volumes or ask HP Technical Support to add
drives. Therefore, it may take time to solve the problem.
Troubleshooting VLL 209