VERITAS Storage Foundation 4.1 Intelligent Storage Provisioning Administrator's Guide

Chapter 1, Understanding ISP

Examples of Using ISP from the Command Line

Preparing a Space-Optimized Snapshot

Having created a cache volume, you now need to prepare the space-optimized snapshots that you

require. This command sets up a space-optimized snapshot, mysovol, using the cache volume,

mycache:

# vxvoladm -g mydg -p myclpool make mysovol 2g type=snapshot \

cachevolume=mycache init=active

Note The argument 2g is the same as the length of the original source volume for which the

snapshot is being prepared. This value defines the logical size of the snapshot. The actual

amount of storage that the snapshot requires is less than this, and is limited by the size of the

cache volume.

For more information, see “Creating a Shared Cache Volume and Preparing Space-Optimized

Snapshots” on page 77.

Taking a Space-Optimized Snapshot of an Application Volume

Having prepared a cache volume and one or more empty space-optimized snapshots, you are ready

to take a snapshot of the application volume:

# vxsnap -g mydg make source=stmrvol/snapvol=mysovol

For more information, see “Creating Instant Snapshots” on page 81.