Troubleshooting data retention – HP XP P9500 Storage User Manual

Page 213

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Causes and Solutions

Problems

Causes:

Usage of the pool has reached to 100%.

Solutions:

SIM code 622XXX was issued

Add pool-VOLs to the pool to increase the free space in 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)

.

The Protection attribute of Data Retention may have been set to THP
V-VOLs. After performing the above solutions, release the Protection
attribute of the THP V-VOLs using the Data Retention window of
Remote Web Console.

Causes:

Formatted pool capacity displayed in the
View Pool Management Status window does
not increase.

Another pool is being formatted.

The pool usage level reaches up to the threshold.

The pool is blocked.

I/O loads to the storage system are high.

The cache memory is blocked.

Pool-VOLs are blocked.

Pool-VOLs which are external volumes are blocked.

Solutions:

Confirm the display again after waiting for a while.

Add pool-VOLs to the pool to increase the free space in the pool.
For more information, 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)

.

Restore the pool.

Confirm the display again after decreasing I/O loads of the storage
system.

Contact HP Technical Support to restore the cache memory.

Contact HP Technical Support to restore the pool-VOL.

If the blocked pool-VOL is an external volume, confirm following:

Path blockage

Status of the storage system

If you are unable to solve a problem using the above suggestions, or if you encounter a problem
not listed, please contact HP Technical Support.

If an error occurs during the operations, the error code and error message appear in the error
message dialog box. For more information about error messages, see the HP XP P9000 Remote
Web Console Messages
.

Troubleshooting Data Retention

If an error occurs with Data Retention, the

(page 362)

appears. The Error Detail dialog box displays

error locations and error messages.

The Error Detail dialog box does not display Remote Web Console error messages. To find
information about Remote Web Console errors and solutions, see the HP P9000 Remote Web
Console User Guide
.

Troubleshooting Data Retention

213

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