VERITAS FlashSnap Point-In-Time-Copy Solutions Administrator's Guide

Chapter 1, Point-In-Time Copy Solutions
Implementing Off-Host Point-In-Time Copy Solutions
15
Using VERITAS FlashSnap to implement Off-Host Processing Solutions
Vo l u m e
Snapshot
Vo l u m e
OHP Host
Primary Host or Cluster
Vo l u m e
Vo l u m e
Vo l u m e
Vo l u m e
Snapshot
Vo l u m e
Snapshot
Vo l u m e
Snapshot
Vo l u m e
Snapshot
Vo l u m e
Snapshot
Vo l u m e
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
Vo l u m e
Apply the desired off-host
6. Apply off-host processing
processing application to the
snapshot volume on the
Vo l u m e
Vo l u m e
Vo l u m e
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
Vo l u m e
disk group.
OHP host.
OHP host.
OHP host.
primary host.
Repeat steps
3 through 9 as required.
Vo l u m e
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
Vo l u m e
(Use vxsnap print to check
the status of synchronization.)
(Use vxsnap print to check
the status of synchronization.)