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

7.14

Thinly Provisioned Virtual Volumes

3PAR InForm OS CLI Administrator’s Manual InForm OS Version 2.2.4

7.10.4 Consolidating Common Provisioning Group Space

Over time you may wish to consolidate space in your CPGs for better efficiency.

X To consolidate CPG space, issue the compactcpg <CPG_name> or compactcpg

command, where:

 <CPG_name> is the name of the CPG you wish to compact.

 <pattern> is the pattern name to which matching CPGs are compacted.

Additional parameters can optionally be specified when issuing the

compactcpg

command. Refer to the InForm OS Command Line Interface Reference for detailed

information about the

compactcpg command and its optional arguments.

7.10.5 Removing a Common Provisioning Group

X To remove a CPG and the logical disks that make up that CPG, issue the

removecpg <CPG_name> command, where <CPG_name> is the name of the CPG being

removed.

When removing a CPG, you can optionally keep the CPG’s logical disks by issuing the

removecpg -keepld <CPG_name> command. For a complete list of options available for

the

removecpg command, see the InForm OS Command Line Interface Reference.

7.11 Thinly Provisioned Virtual Volumes

A Thinly Provisioned Virtual Volume (TPVV) is a base volume that uses logical disks that belong

to a logical disk pool known as a Common Provisioning Group (CPG). Thinly provisioned virtual

volumes associated with the same CPG draw logical disk regions from that pool as needed. For

detailed information about TPVVs, see the 3PAR InForm Concepts Guide.

7.11.1 Creating a Thinly Provisioned Virtual Volume

X To create a TPVV, issue the createvv -tpvv -usr_aw <percent>

-usr_al <percent> <user_CPG> <VV_name> <VV_size>

command, where:

 -tpvv indicates that you are creating a thinly provisioned virtual volume.

 -usr_aw <percent> is the allocation warning alert limit for the user data space

specified in percentage. This generates an alert when the user data space of the volume

exceeds a specified percentage of the volume’s size.