Veritas FlashSnap Point-In-Time Copy Solutions 5.0 AdministratorÆs Guide, HP-UX 11i v3, First Edition, May 2008

19Point-in-time copy solutions
Implementing off-host point-in-time copy solutions
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
Use
vxsnap make to create
2. Create snapshot volumes
synchronized snapshot volumes.
Use
vxdg split to move the
4. Split and deport disk group
disks containing the snapshot
volumes to a separate disk group.
Use
vxdg deport to deport this
Use
vxdg import to import
5. Import disk group
the disk group containing the
snapshot volumes on the
Snapshot
volume
Apply the desired off-host
6. Apply off-host processing
processing application to the
snapshot volume on the
Volume
Volume
Volume
Use
vxdg deport to deport
7. Deport disk group
the disk group containing the
snapshot volumes from the
Use
vxdg import to import
8. Import disk group
the disk group containing the
snapshot volumes on the
Use
vxdg join to merge the
9. Join disk groups
disk group containing the
snapshot volumes with the
original volumes’ disk group.
If required, use
vxsnap refresh
3. Refresh snapshot mirrors
to update the snapshot volumes.
Snapshot
volume
disk group.
OHP host.
OHP host.
OHP host.
primary host.
Repeat steps
3 through 9 as required.
Volume
If required, create an empty
1. Prepare the volumes
volume in the disk group, and
use vxsnap prepare to prepare
volumes for snapshot creation.
Empty
volume
(Use
vxsnap print to check
the status of synchronization.)
(Use vxsnap print to check
the status of synchronization.)
OHP host
Primary host or cluster