HP XP7 Storage - Manual (Page 143)

In any of the following cases, the reclaiming zero pages will stop, and THP-VOL pages will not be
released:
•
LDEV formatting was performed while reclaiming zero pages.
•
The pool-VOL that is being accessed by the target THP-VOL was blocked.
•
The pool associated with the target THP-VOL was blocked while reclaiming zero pages.
•
Cache memory failure occurred while reclaiming zero pages.
•
The THP-VOL was deleted when zero pages were reclaimed.
•
The initial copy operation between the Continuous Access Synchronous Z pair or the Continuous
Access Journal Z pair was performed on the THP-VOL in which zero pages were being
reclaimed.
Stopping the release of pages in a THP V-VOL
The Storage Administrator (Provisioning) role is required to perform this task.
1.
In the Remote Web Console main window, in the Storage Systems tree, select Logical Devices.
The following is another way to select LDEVs.
1. In the Remote Web Console main window, in the Storage Systems tree, select Pool.
The pool name appears below Pool.
2. Select the pool associated with the THP V-VOL that has pages you want to release.
3. Select the Virtual Volumes tab.
2. From the table, select the THP V-VOL that you want to stop from releasing pages.
3. Click More Actions, and then select Stop Reclaiming Zero Pages.
The Stop Reclaiming Zero Pages window opens.
You cannot stop releasing the pages in a THP V-VOL where zero pages are not being
reclaimed.
4. In the Confirm window, confirm the settings, in Task Name type a unique name for this task
or accept the default, and then click Apply.
If Go to tasks window for status is checked, the Tasks window opens.
Enabling/disabling tier relocation of a THP V-VOL
The Storage Administrator (Provisioning) role is required to perform this task.
You can enable or disable tier relocation of individual THP V-VOLs or on all THP V-VOLs.
THP V-VOLs on which tier relocation is disabled are excluded from the targets for the tier range
calculation, and are not reflected in the performance information of pools. If tier relocation is
disabled on all THP V-VOLs in a pool, performance information of a pool is unavailable in the
View Tier Properties window.
1.
In the Remote Web Console main window, in the Storage Systems tree, select Logical Devices.
The following is another way to select LDEVs.
1. In the Remote Web Console main window, in the Storage Systems tree, select Pool.
2. Select the pool associated with the THP V-VOL for which tier relocation is to be enabled
or disabled.
3. Click the Virtual Volumes tab.
2. From the table, select the THP V-VOL for which tier relocation is to be enabled or disabled.
3. Click More Actions, and then select Edit LDEVs.
4. In the Edit LDEVs window, check tier relocation and select Enable or Disable.
Enable allows tier relocation to be performed to the THP V-VOL.
Managing pools and THP V-VOLs 143