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

8.5
Physical Copies
InForm OS Version 2.2.4 3PAR InForm OS CLI Administrator’s Manual
For information on arguments which can be optionally specified with the creategroupsv
command, refer to the InForm OS Command Line Interface Reference.
8.4 Physical Copies
A physical copy is a snapshot-in-time that duplicates all the data from one base volume to
another base volume (the destination volume).
Physical copies can be:
 Created
 Resynchronized
 Promoted
For additional information about physical copies, see the 3PAR InForm OS Concepts Guide.
8.4.1 Creating a Physical Copy
A physical copy can only be made from a base volume with enough free snapshot data space to
accommodate writes to that volume during the physical copy operation. In addition, the
destination volume must meet the following conditions:
 It must also be a base volume.
 It must have at least as much user space as that of the volume being copied.
 It must not be exported.
For detailed information about the rules governing physical copies, see the 3PAR InForm OS
Concepts Guide.
NOTE: If the parent and destination volume are both thinly provisioned virtual
volumes (TPVVs), only the actual used space is copied.
NOTE: The createvvcopy command can be issued multiple times. However, the
InServ system allows only two physical copy tasks to run concurrently. Any
additional physical copy tasks are queued, pending the completion of the active
physical copy tasks.