HP 3PAR InForm OS 3.1.1 CLI Administrator's Manual

Creating Fully-Provisioned Virtual Volumes
A fully-provisioned virtual volume has a set amount of user space that is allocated for user data.
The virtual volume’s snapshot space is allocated on demand.
• To create a group of fully-provisioned virtual volumes, issue the createvv -cnt <number>
-snp_cpg <CPG_name> <user_CPG> <VV_name> <VV_size g|G|t|T> command,
where:
◦ <number> is the number of virtual volumes to create with the designated properties.
◦ <CPG_name> is the name of the CPG from which the created volume will draw its snapshot
space and administration space.
◦ <user_CPG> is the name of the CPG from which the created virtual volume will draw
its user space.
◦ <VV_name> is the name of the virtual volume being created.
◦ <VV_size g|G|t|T> is the size of the volume in MB, GB, or TB. If g|G|t|T is not
specified, VV_size is the number of MBs. For example, 50g specifies 50 GBs.
NOTE: If the -tpvv option is not specified, the created volume is a fully-provisioned virtual
volume.
For a complete list of options available for the createvv command, see the HP 3PAR InForm OS
Command Line Interface Reference and InForm OS CLI Help.
Creating Thinly-Provisioned Virtual Volumes
A TPVV allocates user space and snapshot space on demand. If you do not specify a CPG to be
used for snapshot space with the -snp_cpg option, the TPVV will have no snapshot space.
• To create a TPVV, issue the createvv -tpvv -snp_cpg <CPG_name> -usr_aw
<percent> -usr_al <percent> <user_CPG> <VV_name> <VV_size g|G|t|T>
command, where:
◦ -tpvv indicates that you are creating a Thinly-Provisioned Virtual Volume.
◦ <CPG_name> is the name of the CPG from which the volume will draw its snapshot space
and administration space.
◦ -usr_aw <percent> is the allocation warning alert limit for the user space specified
in percentage. This generates an alert when the user space of the volume exceeds a
specified percentage of the volume’s size.
◦ -usr_al <percent> is the allocation limit of the user space specified in percentage.
This prevents the user space from exceeding a specified percentage of the volume’s size.
◦ <user_CPG> is the name of the CPG from which the created virtual volume will draw
its user space.
◦ <VV_name> is the name of the volume being created. The name can be up to 31
characters.
◦ <VV_size g|G|t|T> is the size of the volume in MB, GB, or TB. If g|G|t|T is not
specified, VV_size is the number of MBs. For example, 50g specifies 50 GBs.
For a complete list of options available for the createvv command, see the HP 3PAR InForm OS
Command Line Interface Reference and InForm OS CLI Help.
Creating Virtual Volumes 87