Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

Creating a volume for use as a full-sized instant or linked
break-off snapshot
To create an empty volume for use by a full-sized instant snapshot or a linked
break-off snapshot
1
Use the vxprint command on the original volume to find the required size
for the snapshot volume.
# LEN=`vxprint [-g diskgroup] -F%len volume`
The command as shown assumes a Bourne-type shell such as sh, ksh or bash.
You may need to modify the command for other shells such as csh or tcsh.
2
Use the vxprint command on the original volume to discover the name of
its DCO:
# DCONAME=`vxprint [-g diskgroup] -F%dco_name volume`
217Administering volume snapshots
Creating instant snapshots