Veritas FlashSnap Point-In-Time Copy Solutions 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

Figure 1-7
Implementing off-host processing solutions
Volume
Snapshot
volume
Volume
Volume
Volume
Volume
Snapshot
volume
Snapshot
volume
Snapshot
volume
Snapshot
volume
Snapshot
volume
deport
import
import
deport
2. Create snapshot volumes
Use vxsnap make to create
synchronized snapshot volumes.
(Use vxsnap print to check the
status of synchronization.)
4. Split and deport disk group
Use vxdg split to move the disks
containing the snapshot volumes to
a separate disk group. Use vxdg
deport to deport this disk group.
5. Import disk group
Use vxdg import to import the disk
group containing the snapshot
volumes on the OHP host.
Snapshot
volume
6. Apply off-host processing
Apply the desired off-host
processing application to the
snapshot volume on the OHP host.
Volume
Volume
Volume
7. Deport disk group
Use vxdg deport to deport the disk
group containing the snapshot
volumes from the OHP host.
8. Import disk group
Use vxdg import to import the disk
group containing the snapshot
volumes on the primary host.
9. Join disk groups
Use vxdg join to merge the disk
group containing the snapshot
volumes with the original volumes’
disk group.
3. Refresh snapshot mirrors
If required, use vxsnap refresh to
update the snapshot volumes.
(Use vxsnap print to check the
status of synchronization.)
Snapshot
volume
Repeat steps 3
through 9 as required
Volume
1. Prepare the volumes
If required, create an empty volume
in the disk group, and use vxsnap
prepare to prepare volumes for
snapshot creation.
Empty
volume
OHP host
Primary host or cluster
Point-in-time copy solutions
Implementing off-host point-in-time copy solutions
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