HP XP P9000 Command View Advanced Edition Software - Manual (Page 70)

About unallocating volumes
You can unallocate volumes from clusters, or hosts. Unallocated volumes can be:
• Re-allocated (with existing data) to a cluster, or host that can recognize the existing data (file sys-
tem).
• Used for other storage requirements.
Unallocating a volume deletes all LUN paths that connect the volumes to the cluster, or host.
NOTE:
Unallocating volumes does not delete existing volume data. However, after volumes are unallocated,
if you delete the unallocated volumes, existing volume data is lost. To retain volume data, you can
back up volumes before unallocating them. For example, for volumes that will be re-allocated you
can back up volumes as a precaution. For volumes that will be unallocated and deleted, you can back
up volumes to retain the volume data.
Unallocating volumes from hosts
Unallocated volumes can be re-allocated (with existing data) or can be made available for other
storage requirements.
Tasks to complete beforehand:
• Identify the name of the target cluster or host, and the volumes to unallocate.
• If necessary, backup data on the target volumes.
• Unmount all allocated volumes that you plan to unallocate. An IT administrator might have to
perform this task.
1. On the Resources tab, select Hosts.
2. Expand the tree and select the target OS.
3. For one or more hosts, unallocate some or all host volumes:
a. To work with one host only, click the host name link and select all volumes or specific volumes,
then click Unallocate Volumes.
b. To work with one or more hosts, select one or more host name rows, and click Unallocate
Volumes.
For either step above, the Unallocate Volumes dialog box is displayed. You can unallocate
volumes by selecting one or more of the listed volumes.
4. Click Show Plan to review the following:
• Verify the selected volumes in the Plan Summary panel. If the volume selection is incorrect,
use Back to correct the selection and repeat Show Plan.
• Review Plan Details (including WWN nicknames) to confirm the target host bus adapter
(HBA).
• Optionally, set Advanced Options.
• Optionally, update the task name, and enter a description.
• Schedule the task for Now (the default), or for a later Date and Time.
• Check View task status to monitor the task on Tasks & Alerts upon submission.
5. Click Submit.
6. On the Tasks & Alerts tab, confirm the task is completed.
Managing storage resources in a SAN environment 70