VERITAS FlashSnap Point-In-Time-Copy Solutions Administrator's Guide

Chapter 3, Online Database Backup

Making an Off-Host Backup of an Online Database

Reattaching Snapshot Plexes

Note This operation is not supported for space-optimized instant snapshots.

Using the following command, some or all plexes of an instant snapshot may be reattached to the

specified original volume, or to a source volume in the snapshot hierarchy above the snapshot

volume:

# vxsnap [-g diskgroup] reattach snapvol source=vol \

[nmirror=number]

By default, all the plexes are reattached, which results in the removal of the snapshot. If required,

the number of plexes to be reattached may be specified as the value assigned to the nmirror

attribute.

Note The snapshot being reattached must not be open to any application. For example, any file

system configured on the snapshot volume must first be unmounted.

For example the following command reattaches 1 plex from the snapshot volume, snapmyvol, to

the volume, myvol:

# vxsnap -g mydg reattach snapmyvol source=myvol nmirror=1

While the reattached plexes are being resynchronized from the data in the parent volume, they

remain in the SNAPTMP state. After resynchronization is complete, the plexes are placed in the

SNAPDONE state.