HP StorageWorks XP24000/XP20000 Thin Provisioning Software User Guide (T5227-96015, May 2011)

Figure 39 Changing the Threshold
Releasing a V-VOL from a Pool
If you release a V-VOL from the pool, the free space is added back into the pool.
To release a V-VOL from a pool:
1. Release the path definitions to the V-VOLs to be deleted. For instructions, see the HP
StorageWorks XP24000/XP20000 LUN Manager User Guide.
2. Access the V-VOL window by selecting Go Volume Manager V-VOL (see “Selecting the
V-VOL Group” (page 66)).
3. In the V-VOL Group–V-VOL tree in the left side of the window, select the V-VOL group that
contains the V-VOLs that you want to release from a pool. This will display the information for
the individual V-VOLs in the right side of the window.
4. In the right side of the window, right-click one or more V-VOLs, and select Release V-VOL from
Pool.
CAUTION: A V-VOL cannot be released from a pool if the volume is a volume with path
definition or reserved volume of XP Auto LUN Software.
5. Select Apply and then OK to release the V-VOL from the pool. The space assigned to the
V-VOLs will be returned back to the pool as free space.
Changing the V-VOL Threshold
To change the threshold of a V-VOL that is already associated with a pool:
1. Access the V-VOL window by selecting Go Volume Manager V-VOL (see “Selecting the
V-VOL Group” (page 66)).
2. In the V-VOL Group–V-VOL tree in the left side of the window, select the V-VOL group that
contains the V-VOLs that you want to associate with a pool. Selecting a V-VOL group displays
the information for the individual V-VOLs in the right side of the window.
3. In the right side of the window, right-click one or more V-VOLs, and select Change Threshold
to display the Change Threshold dialog box (see “Changing the Threshold” (page 67)). Be
sure to select V-VOLs that are already associated with a pool.
4. Select the threshold from the list, and then click Set to implement the settings and return to the
V-VOL window. You can set thresholds from 5% to 300%,, in 5% increments. The default is
5%. You can only select from rows with black font.
5. Click Apply, and then click OK to change the V-VOL threshold.
Increasing V-VOL Capacity
If you increase the V-VOL capacity, you must use the raidvchkset command of XP RAID Manager.
XP RAID Manager version 01-22-03/06 supports the option for increasing capacity, but does not
support the option for decreasing capacity.
You can increase the capacity of V-VOLs used online for the following operating systems:
• Windows Server 2008
• Windows 2003
Managing V-VOLs and V-VOL Groups 67