HP 3PAR InForm OS 3.1.1 CLI Administrator's Manual

You can use the InForm OS CLI to perform the following physical copy tasks:
Create
Resynchronize
Promote
For additional information about the rules governing physical copies, see the HP 3PAR InForm OS
Concepts Guide.
NOTE: If you create a TPVV copy of a fully-provisioned virtual volume, you cannot create a
fully-provisioned copy of that TPVV at a later time. A fully-provisioned virtual volume cannot be
converted to a TPVV, then converted back to a CPVV.
NOTE: 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.
Creating a Physical Copy
To create a physical copy of a virtual volume, issue the createvvcopy -p <parent_VV>
-s <destination_VV>|set:<set_name> -pri high command, where:
-p <parent_VV> creates a snapshot of the parent volume, as identified by
<parent_VV>, and copies the snapshot data to the destination volume.
<destination_VV> is the name of the destination volume. The destination volume must
be equal or greater in size to the parent volume, must be a writeable volume, and must
not be exported as a VLUN.
<set_name> is the name of the destination volume set. Each virtual volume in the
destination volume set must be equal or greater in size to the parent volume, must be a
writeable volume, and must not be exported as a VLUN.
-s saves the snapshot for quick resynchronization and retains the parent/copy relationship
between the parent and destination volumes.
-pri <high|med|low> specifies the priority of the copy operation before it is started.
This option allows you to control the speed of the task. If this option is not specified, the
operation is started with default priority of medium. High priority indicates that the
operation will complete as fast as possible. Low priority indicates that the operation will
run slower than the default priority task. You can use the -pri option to raise the priority
of the task if your virtual volumes are unavailable and restoring access to the volume is
the highest priority. However, raising the priority of the task may impact host I/O
performance. This option cannot be used with -halt option.
The priority of the task can also be changed after it is running with the settask command.
For more information about changing the priority of a running task, see “Setting the
Priority of a Running Task” (page 125).
For a complete list of options available for the createvvcopy command, see the HP 3PAR
InForm OS Command Line Interface Reference and InForm OS CLI Help.
NOTE: The -halt option cancels a running physical copy operation. The destination volume is
marked with the cpf status which indicates that the copy operation failed. The cpf status can be
cleared by issuing a new instance of the createvvcopy command.
Physical Copies 103