Removing A Virtual Copy; Creating A Group Of Virtual Copies; Physical Copies - HP 3PAR StoreServ 7200 2-node Administrator's Manual

Removing a Virtual Copy

To remove a virtual copy, issue the removevv <VV_name> command, where <VV_name> is the
snapshot you are removing.
See the HP 3PAR Command Line Interface Reference for detailed information about the removevv
command.

Creating a Group of Virtual Copies

The HP 3PAR CLI also allows for the creation of consistent group snapshots of a list of virtual
volumes. A maximum group size of 100 virtual volumes can be specified when making a group
of virtual copies.
To create group snapshots, issue the creategroupsv <copy_of_VV> command, where
<copy_of_VV> is the name of the virtual volume being copied.
NOTE: If you wish to copy multiple volumes, the <copy_of_VV> argument can be repeated
multiple times on the command line for a single instance of the creategroupsv command.
For a complete list of options available for the creategroupsv command, see the HP 3PAR
Command Line Interface Reference and the HP 3PAR CLI Help.

Physical Copies

A physical copy is a full copy of a volume. The data in a physical copy is static; it is not updated
with subsequent changes to the parent volume. The parent volume is the original volume that is
copied to the destination volume. The parent volume can be a base volume, volume set, virtual
copy, or physical copy. Creating physical copies does not require a separate license.
Physical copies can be online physical copies or offline physical copies. For online physical copies,
the destination volume is automatically created and can be exported immediately. Offline physical
copies require a destination volume that must have a user space size at least as large as the user
space of the base volume being copied, and cannot be exported.
The maximum number of physical copies that can be created on a system is determined by the
system configuration. For the maximum number of physical copies that can be created with your
specific system configuration, see the SPOCK website:
http://www.hp.com/storage/spock
A physical copy can only be made from a volume with enough free space to accommodate writes
to that volume during the physical copy operation. In addition, the destination volume must meet
the following conditions:
It must have snapshot space associated with it.
It must have at least as much user space as the volume being copied.
In addition to creating offline or online physical copies, you can also use the HP 3PAR CLI to
resynchronize or promote offline physical copies. Online physical copies cannot be resynchronized
or promoted.
For additional information about the rules governing physical copies, see the HP 3PAR StoreServ
Storage Concepts Guide.
NOTE: If the parent and destination volume are both TPVVs, only the space actually used is
copied.
The createvvcopy command can be issued multiple times. However, the 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.
Physical Copies 97