To make it easier to create snapshots of several volumes at the same time, the snapshot option accepts more than one volume name as its argument, for example:
# vxassist [-g diskgroup] snapshot volume1 volume2 ...
By default, the first snapshot volume is named SNAP-volume, and each subsequent snapshot is named SNAPnumber-volume, where number is a unique serial number, and volume is the name of the volume for which the snapshot is being taken. This default pattern can be overridden by using the option -o name=pattern, as described on the vxassist(1M) manual page. For example, the pattern SNAP%v-%d reverses the order of the number and volume components in the name.
To snapshot all the volumes in a single disk group, specify the option -o allvols to vxassist:
# vxassist -g diskgroup -o allvols snapshot
This operation requires that all snapstart operations are complete on the volumes. It fails if any of the volumes in the disk group do not have a complete snapshot plex in the SNAPDONE state.