Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

# vxplex -o dcoplex=trivol_dco-03 convert state=SNAPDONE \
trivol-03
Here the DCO plex trivol_dco_03 is specified as the DCO plex for the new snapshot
plex.
To convert an existing plex into a snapshot plex in the SNAPDONE state for a
volume on which Non-Persistent FastResync is enabled, use the following
command:
# vxplex [-g diskgroup] convert state=SNAPDONE plex
A converted plex is in the SNAPDONE state, and can be used immediately to create
a snapshot volume.
Note: The last complete regular plex in a volume, an incomplete regular plex, or
a dirty region logging (DRL) log plex cannot be converted into a snapshot plex.
Creating multiple snapshots
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.
Reattaching a snapshot volume
The snapback operation merges a snapshot copy of a volume with the original
volume. One or more snapshot plexes are detached from the snapshot volume
401Administering volume snapshots
Creating traditional third-mirror break-off snapshots