VERITAS Volume Manager 3.1 Administrator's Guide

Volume Tasks
Preparing a Volume to Restore From Backup
Chapter 6256
To create a snapshot volume, use the following command:
# vxassist snapshot volume_name new_volume_name
For example, to create a snapshot volume of voldef, use the following
command:
# vxassist snapshot voldef snapvol
The snapshot volume can now be used by backup utilities, while the
original volume continues to be available for applications and users.
The snapshot volume occupies as much space as the original volume. To
avoid wasting space, remove the snapshot volume when your backup is
complete.