VERITAS Volume Manager 4.1 Administrator's Guide

Configuring Off-Host Processing
Implementing Off-Host Processing Solutions
Chapter 11 389
If a database spans more than one volume, specify all the volumes and
their snapshot volumes on the same line, for example:
# vxassist -g dbasedg snapshot vol1 snapvol1 vol2 snapvol2 \
vol3 snapvol3
Step 6. If you temporarily suspended updates to the volume by a database in
step 4, release all the tables from hot backup mode.
Step 7. On the primary host, use the following command to split the snapshot
volume into a separate disk group, snapvoldg, from the original disk
group, volumedg:
# vxdg split volumedg snapvoldg snapvol
Step 8. On the primary host, deport the snapshot volume’s disk group using the
following command:
# vxdg deport snapvoldg
Step 9. On the OHP host where the backup is to be performed, use the following
command to import the snapshot volume’s disk group:
# vxdg import snapvoldg
Step 10. The snapshot volume is initially disabled following the split. Use the
following commands on the OHP host to recover and restart the snapshot
volume:
# vxrecover -g snapvoldg -m snapvol
# vxvol -g snapvoldg start snapvol
Step 11. On the OHP host, back up the snapshot volume. If you need to remount
the file system in the volume to back it up, first run fsck on the volume.
The following are sample commands for checking and mounting a file
system:
# fsck -F vxfs /dev/vx/rdsk/snapvoldg/snapvol
# mount -F vxfs /dev/vx/dsk/snapvoldg/snapvol mount_point
Back up the file system at this point, and then use the following
command to unmount it.
# umount mount_point