Thinly-Provisioned Virtual Volumes; Fully-Provisioned Virtual Volumes; Changing Virtual Volume Raid Levels - HP 3PAR StoreServ 7200 2-node Administrator's Manual

Thinly-Provisioned Virtual Volumes

By default, TPVVs and their underlying CPGs dedicate space from all available resources as they
grow, both from preexisting and new drive capacity resources. This natural expansion capability
of TPVVs reduces the need for changing the layout of TPVVs after adding disks.
To change the layout of TPVVs following a hardware upgrade, perform the following:
1. Create a new CPG. See
2. Tune the user space of the volume by issuing the tunevv usr_cpg <CPG_name>
<volume_name> command, where:
usr_cpg <CPG_name> is the name of the CPG created in
space of the new CPG will be used.
<volume_name> is the TPVV you are modifying.
3. Tune the snapshot space of the volume by issuing the tunevv snp_cpg <CPG_name>
<volume_name> command, where:
snp_cpg <CPG_name> indicates the CPG to where the snapshot space is moved.
<volume_name> is the TPVV you are modifying.

Fully-Provisioned Virtual Volumes

To change the layout of FPVVs following a hardware upgrade, perform the following:
1. Create a new CPG. See
2. Tune the user space of the volume by issuing the tunevv usr_cpg <CPG_name>
<volume_name> command, where:
usr_cpg <CPG_name> is the name of the CPG created previously in
the user space of the new CPG will be used.
<volume_name> is the fully-provisioned virtual volume you are modifying.
3. Tune the snapshot space of the volume by issuing the tunevv snp_cpg <CPG_name>
<volume_name> command:
snp_cpg <CPG_name> indicates the CPG to where the snapshot space is moved.
<volume_name> is the fully-provisioned virtual volume you are modifying.

Changing Virtual Volume RAID Levels

Thinly-Provisioned Virtual Volumes
To change the RAID type of a TPVV, perform the following:
1. Create a new CPG with the RAID type to which you wish to change the volume. See
a Common Provisioning Group" (page 80)
2. Change the TPVV's RAID type by issuing the tunevv usr_cpg <CPG_name> <TPVV_name>
command, where:
usr_cpg <CPG_name> is the name of the CPG created previously in
<TPVV_name> is the TPVV whose RAID type you are changing.
Fully-Provisioned Virtual Volumes
To change the RAID type of a fully-provisioned virtual volume, perform the following:
1. Create a new CPG with the RAID type to which you wish to change the volume. See
a Common Provisioning Group" (page 80)
"Creating a Common Provisioning Group" (page 80)
"Creating a Common Provisioning Group" (page 80)
for instructions.
for instructions.
for instructions.
Step 1, indicating the user
for instructions.
Step
Step
Tuning and Modifying Virtual Volumes 175
1, indicating
"Creating
1.
"Creating