Troubleshooting data retention, Data retention troubleshooting instructions – HP XP Racks User Manual

Page 206

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Causes and Solutions

Problems

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

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 144)

.

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 152)

.

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 HP XP7 Remote Web Console
Messages
.

Troubleshooting Data Retention

If an error occurs with Data Retention, the

“Error Detail Dialog Box” (page 391)

dialog box 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 XP7 Remote Web Console
User Guide
.

Data Retention troubleshooting instructions

The following table provides troubleshooting instructions for using Data Retention.

Probable Causes and Solutions

Problems

You have been making changes in the Data Retention window, but the changes
have not been applied to the storage system. Apply the changes first, and
then perform the extension lock operation.

The Disable/ Enable or the
Enable/Disable button on the Data
Retention window is unavailable.

206 Troubleshooting

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