HP 3PAR Command Line Interface Administrator's Manual: HP 3PAR OS 3.1.2 (QR482-96525, September 2013)

See the HP 3PAR Command Line Interface Reference and the HP 3PAR CLI Help for detailed
information about this command.
Compacting Common Provisioning Groups
Reclaim unused CPG space with the compactld command. CPGs provide a shared pool of LD
capacity for use by all virtual volumes that draw space from that pool. If volumes that draw from
a CPG are deleted, or if copy space for these volumes grows and then shrinks, the underlying LDs
in the CPG pool can become less efficient in space usage. Compacting a CPG allows you to
reclaim space from a CPG that has become less efficient in space usage from creating, deleting,
and relocating volumes. Compacting consolidates LD space in CPGs into as few LDs as possible.
• compactcpg <CPG_name> or compactcpg <pattern>
◦ <CPG_name> is the name of the CPG you wish to compact.
◦ <pattern> displays all CPGs that match the pattern.
See the HP 3PAR Command Line Interface Reference and the HP 3PAR CLI Help for detailed
information about this command.
For more information about how the system manages space usage, see the HP 3PAR StoreServ
Storage Concepts Guide.
Compacting Common Provisioning Groups 179