To make it easier to create snapshots of several volumes at the same time, both the vxsnap
make
and vxassist
snapshot
commands accept more than one volume name as their argument.
For traditional snapshots, you can create snapshots of all the volumes in a single disk group by specifying the option -o
allvols
to the vxassist
snapshot
command.
By default, each replica volume is named SNAP
number-
volume, where number is a unique serial number, and volume is the name of the volume for which a snapshot is being taken. This default can be overridden by using the option -o
name=
pattern, as described on the vxsnap
(1M) and vxassist
(1M) manual pages.
It is also possible to take several snapshots of the same volume. A new FastResync change map is produced for each snapshot taken to minimize the resynchronization time for each snapshot.