Veritas Storage Foundation Intelligent Storage Provisioning 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

other than by shutting down the applications and temporarily unmounting the

file system. In many cases, it may only be important to ensure the integrity of file

data that is not in active use at the time that you take the snapshot.

Traditional third-mirror break-off snapshots cannot be taken of application

volumes that have been created by ISP.

Preparing storage pools for full-sized instant

snapshots

Assuming that you have already set up a data storage pool in a disk group, you

can create one or more clone storage pools in the same disk group by using the

same procedure. You may choose to use different types of disks or templates with

a clone storage pool than you set up for the data storage pool.

For example, the following commands set up a data and clone storage pool in the

disk group, ttdg, from storage pool definitions:

# vxpool -g ttdg create ttdtpool \

pooldefinition=prefab_mirrored_volumes

# vxpool -g ttdg create ttclpool \

pooldefinition=mirrored_volumes

The data storage pool, ttdtpool, is configured with templates that support the

creation of volumes on mirrored disks that are prefabricated in hardware. The

templates that are installed for the clone storage pool, ttclpool, support mirrored

volumes that may be created using software. Having set up the storage pools, they

can be populated with initialized disks.

See “Adding disks to a storage pool” on page 54.

Several storage pool sets are provided for setting up data and clone storage pools

within a disk group.

To set up a data and clone storage pool using one of these defined sets, use the

following command:

# vxpool [-g diskgroup] organize storage_pool_set

For example, to set up a data storage pool that supports mirrored volumes and a

clone storage pool that supports striped snapshots in the disk group, mydg, you

could use the following command:

# vxpool -g mydg organize mirrored_data_striped_clones

99Administering instant snapshots

Preparing storage pools for full-sized instant snapshots