3PAR InForm® OS 2.2.4 CLI Administrator's Manual (320-200113 Rev A, March 2009)

7.5
Modifying Virtual Volumes
InForm OS Version 2.2.4 3PAR InForm OS CLI Administrator’s Manual
Concepts Guide for information about CPGs and 7.10 Common Provisioning Groups on
page 7.10 for information about creating and allocating storage using CPGs.
7.4 Modifying Virtual Volumes
Any existing virtual volume can be modified to have a new name, draw from a CPG, or to
adhere to specific policies. To modify an existing VV, issue the
setvv command. This section
will only describe the use of the
setvv command to provision volume snapshot space from a
CPG. For details on all of the
setvv command arguments and their usage, refer to the InForm
OS Command Line Interface Reference.
7.4.1 Modifying a Virtual Volume to Draw from a CPG
Virtual volumes can be modified to provision their snapshot data and snapshot administration
spaces from an existing CPG. For information about CPGs, see 7.10 Common Provisioning
Groups on page 7.10.
X To modify a volume to draw its snapshot data and administration spaces from a CPG, issue
the
setvv -cpg <CPG_name> <VV_name> command, where:
 <CPG_name> is the name of the CPG from which the volume will be drawing its
snapshot data space and snapshot administration space.
 <VV_name> is the name of the virtual volume being modified.
7.5 Growing Virtual Volumes
You can increase the size (grow) existing virtual volumes by automatically adding logical disks
when the volumes’ capacity has been reached. The following rules apply to growing virtual
volumes:
 Virtual volumes created using the createaldvv command can only be grown using the
growaldvv command.
 Virtual volumes created using the createvv command can only be grown using the
growvv command.