VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Implementing Off-Host Processing Solutions
280 VERITAS Volume Manager Administrator’s Guide
13. On the OHP host, use the appropriate database commands to recover and start the
replica database for its decision support role.
When youno longerneed the replica database,or you want to resynchronize its data with
the primary database, you can reattach the snapshot plexes with the original volume as
described below:
1. On the OHP host, shut down the replica database, and use the following command to
unmount the snapshot volume:
# umount mount_point
2. On the OHP host, use the following command to deport the snapshot volume’s disk
group:
# vxdg deport snapvoldg
3. On theprimary host,re-import the snapshotvolume’s disk group usingthe following
command:
# vxdg import snapvoldg
4. On the primaryhost,use thefollowingcommand torejoin the snapshotvolume’s disk
group with the original volume’s disk group:
# vxdg join snapvoldg volumedg
5. The snapshot volume is initially disabled following the join. Use the following
commands on the primary host to recover and restart the snapshot volume:
# vxrecover -g volumedg -m snapvol
# vxvol -g volumedg start snapvol
6. On the primary host, reattach the plexes of the snapshot volume to the original
volume, and resynchronize their contents using the following command:
# vxassist -g volumedg -o allplexes snapback snapvol