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

8.7
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
creategroupvvcopy command, refer to the InForm OS Command Line Interface
Reference.
8.4.2 Resynchronizing a Physical Copy
At some point, you may want to resynchronize a physical copy with its original parent base
volume because either virtual volume could have been modified since the copy operation was
launched. When you resynchronize a physical copy, the system copies changes from one
volume in the physical copy pair to the other.
X To resynchronize a physical copy, issue the createvvcopy -r <destination_VV>
command, where
-r <destination_VV> is the volume to be resynced with its parent
volume. The snapshot is retained for quick resynching and the parent-copy relationship is
also retained.
8.4.2.1 Resynchronizing a Group of Physical Copies
Just as groups of physical copies can be created for a list of virtual volumes, those physical
copies can also be resynced.
X To resynchronize a group of physical copies, issue the creategroupvvcopy -r
<destination_VV>
command, where -r <destination_VV> is the volume to be
resynced with its parent volume.
Snapshots of the parent volume must have been saved during their creation (using the
-s
option) in order to resynchronize the volumes.
8.4.3 Promoting a Physical Copy
Over time, physical copies and their base volumes can change as data is written to each. At
some point the association between the two volumes may no longer be relevant. The
association between a physical copy and a base volume can be broken by promoting the
physical copy to a base volume.
NOTE: If you wish to copy multiple volumes, the
<parent_VV>:<destination_VV> argument can be repeated multiple times
on the command line for a single instance of the
creategroupvvcopy
command.