Veritas Storage Foundation Intelligent Storage Provisioning 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

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If you require a backup of the data in the snapshot, use an appropriate utility
or operating system command to copy the contents of the snapshot to tape,
or to some other backup medium.
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You now have the following choices of what to do with a linked break-off
snapshot:
■ Refresh the contents of the snapshot. This creates a new point-in-time
image of the original volume ready for another backup. If synchronization
was already in progress on the snapshot, this operation may result in large
portions of the snapshot having to be resynchronized.
See “Refreshing an instant snapshot” on page 118.
This operation is not possible if the linked volume and snapshot are in
different disk groups.
■ Relink the snapshot volume with the original volume.
See “Reattaching a linked break-off snapshot volume” on page 119.
■ Dissociate the snapshot volume entirely from the original volume. This
may be useful if you want to use the copy for other purposes such as testing
or report generation. If desired, you can delete the dissociated volume.
See “Dissociating an instant snapshot” on page 121.
■ If the snapshot is part of a snapshot hierarchy, you can also choose to
split this hierarchy from its parent volumes.
See “Splitting an instant snapshot hierarchy” on page 122.
Creating multiple instant snapshots
In these examples, all snapshot volumes and any cache volumes must be prepared
in advance.
See “Creating a volume for use as a full-sized instant or linked break-off snapshot”
on page 100.
See “Creating a shared cache volume and preparing space-optimized snapshots”
on page 101.
To make it easier to create snapshots of several volumes at the same time, the
vxsnap make command accepts multiple tuples that define the source and snapshot
volumes names as their arguments.
For example, to create three instant snapshots, each with the same redundancy,
use the following form of the command:
# vxsnap [-g diskgroup] make \
source=vol1/snapvol=snapvol1 \
Administering instant snapshots
Creating instant snapshots
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