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

Table A-7
Administering volumes (continued)
DescriptionCommand
Takes a full-sized instant snapshot of
a volume by breaking off plexes of the
original volume.
See “Creating instant snapshots”
on page 364.
Example:
# vxsnap -g mydg make \
source=myvol/\
newvol=mysnpvol/\
nmirror=2
vxsnap [-g diskgroup] make \
source=volume\
/newvol=snapvol\
[/nmirror=number]
Takes a full-sized instant snapshot of
a volume using a prepared empty
volume. See Creating a volume for use
as a full-sized instant or linked
break-off snapshot.
See “Creating instant snapshots”
on page 364.
Example:
# vxsnap -g mydg make \
source=myvol/snapvol=snpvol
vxsnap [-g diskgroup] make \
source=volume/snapvol=snapvol
Creates a cache object for use by
space-optimized instant snapshots.
See “Creating a shared cache object”
on page 368.
A cache volume must have already been
created. After creating the cache object,
enable the cache object with the
vxcache start command.
For example:
# vxassist -g mydg make \
cvol 1g layout=mirror \
init=active mydg16 mydg17
# vxmake -g mydg cache cobj \
cachevolname=cvol
# vxcache -g mydg start cobj
vxmake [-g diskgroup] cache \
cache_object cachevolname=volume \
[regionsize=size]
565Using Veritas Volume Manager commands
About Veritas Volume Manager commands