Troubleshooting; Troubleshooting Virtual Lvi; Troubleshooting Thin Provisioning Z - HP XP7 User Manual

6 Troubleshooting

The information in this chapter can help you troubleshoot problems when provisioning a storage
system.
For problems and solutions related to using Remote Web Console, see the HP XP7 Remote Web
Console User Guide.

Troubleshooting Virtual LVI

If a failure occurs while you are operating, see the HP XP7 Remote Web Console Messages.
For the problems and solutions regarding the Remote Web Console, see the HP XP7 Remote Web
Console User Guide.

Troubleshooting Thin Provisioning Z

The following table provides troubleshooting instructions for Thin Provisioning Z.
Problems
Pool usage level (Used (%)) exceeds the
threshold.
Cannot create a THP V-VOL.
Causes and Solutions
Causes:
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
Perform the operation to reclaim zero pages in order to release pages
in which zero data are stored. See
V-VOL" (page 153).
Set a larger value to the threshold of the pool. See
thresholds" (page 137).
After correcting the causes of SIM 620xxx, or 620xxx and 626xxx,
you need to complete the SIMs (see
(page 139)). 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 and 626xxx).
SIMs 620xxx, 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.
Causes:
Usage of the pool has reached to 100%.
Something in the storage system is blocked.
The available capacity of THP V-VOL is restricted due to the value of
Subscription-Limit set for the pool.
Solutions:
Add some pool-VOLs to the pool. See
(page 143).
Perform the operation to reclaim zero pages in order to release pages
in which zero data are stored. See
V-VOL" (page 153).
143).
"About releasing pages in a THP
"Changing pool
"Manually completing a SIM"
"Increasing pool capacity"
"About releasing pages in a THP
Troubleshooting Virtual LVI 165