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

You can use the vxsnap syncwait command to wait for the synchronization

of the snapshot volume to be completed, as shown in the following command:

# vxsnap [-g diskgroup] syncwait snapvol

For example, you would use the following command to wait for

synchronization to finish on the snapshot volume, snap2myvol:

# vxsnap -g mydg syncwait snap2myvol

This command exits (with a return code of zero) when synchronization of the

snapshot volume is complete. The snapshot volume may then be moved to

another disk group or turned into an independent volume.

If required, you can use the following command to test if the synchronization

of a volume is complete:

# vxprint [-g diskgroup] -F%incomplete snapvol

This command returns the value off if synchronization of the volume, snapvol,

is complete; otherwise, it returns the value on.

See “Controlling instant snapshot synchronization” on page 124.

Use fsck (or some utility appropriate for the application running on the

volume) to clean the temporary volume’s contents.

For example, you can use the following command:

# fsck -F vxfs /dev/vx/rdsk/diskgroup/snapshot

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.

Managing instant snapshots

You have the following choices for what to do with an instant 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.

■ Restore the contents of the original volume from the snapshot volume. For

full instant snapshot volumes, you can choose whether none, a subset, or all

of the plexes of the snapshot volume are returned to the original volume as a

113Administering instant snapshots

Creating instant snapshots