VERITAS Storage Foundation 4.1 Intelligent Storage Provisioning Administrator's Guide

Chapter 5, Administering Instant Snapshots
Implementing Off-Host Processing Solutions
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8. On the primary host, deport the snapshot volume’s disk group using the following command:
# vxdg deport snapvoldg
9. On the OHP host where the replica database is to be set up, use the following command to
import the snapshot volume’s disk group:
# vxdg import snapvoldg
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
11. On the OHP host, check and mount the snapshot 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
12. On the OHP host, use the appropriate database commands to recover and start the replica
database for its decision support role.
When you want to resynchronize the snapshot volume’ s data with the primary database, you can
refresh the snapshot plexes from 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 the primary host, re-import the snapshot volume’s disk group using the following
command:
# vxdg import snapvoldg
4. On the primary host, use the following command to rejoin the snapshot volume’s disk group
with the original volume’s disk group:
# vxdg join snapvoldg volumedg