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

7.4
Creating Logical Disks and Virtual Volumes
3PAR InForm OS CLI Administrator’s Manual InForm OS Version 2.2.4
7.3.1 Creating Stand-Alone Virtual Volumes
X To create virtual volumes and their underlying logical disks where the objects’ layout is
automatically configured by the system, issue the
createaldvv -t <RAID_type> -ssz
<size> <VV_name> <size>
command, where:
 -t <RAID_type> is the RAID type for the created volume, specified as r0 (RAID 0), r1
(RAID 1), or
r5 (RAID 5).
 -ssz <size> is the set size in the number of chunklets to evenly spread the RAID sets
across the drive cages.
 <VV_name> is the name of the virtual volume being created.
 <size> is the size of the user volume.
For additional arguments available for the
createaldvv command and details on how to
use them, see the InForm OS Command Line Interface Reference.
If you are using CPGs, you can optionally allocate a virtual volume’s snapshot
administration and data space from an existing CPG, thus creating a commonly provisioned
virtual volume (CPVV) (see 7.12 Commonly Provisioned Virtual Volumes on page 7.16).
Refer to the 3PAR InForm OS Concepts Guide for information about CPGs and 7.10
Common Provisioning Groups on page 7.10 for information about creating and allocating
storage using CPGs.
7.3.2 Creating Virtual Volumes Using Common Provisioning Groups
X To create virtual volumes which draw their user space from a CPG, issue the createvv
<user_CPG> <VV_name> <size>
command, where:
 <user_CPG> is the name of the CPG from which the created virtual volume’s user space
is drawn.
 <VV_name> is the name of the virtual volume being created.
 <size> is the size of the user volume.
For additional arguments available for the
createvv command and details on how to use
them, see the InForm OS Command Line Interface Reference.
You can optionally allocate a virtual volume’s snapshot administration and data space from
an existing CPG, thus creating a commonly provisioned virtual volume (CPVV) (see 7.12
Commonly Provisioned Virtual Volumes on page 7.16). Refer to the 3PAR InForm OS