Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

There is no requirement for the OHP host to have access to the disks that contain
the primary database volumes.
Figure 13-2
Example system configuration for off-host database backup
Snapshot volumes created on these
disks are accessed by both hosts
Volumes created on these
disks are accessed by the
primary host
Network
Primary host for database OHP host
Controllers Controllers
c1 c2 c3 c4 c4c3c2c1
Backup to disk, tape or other
media by OHP host
Disk
arrays
Local
disks
Local
disks
Note: It is assumed that you have already prepared the volumes containing the
file systems for the datafiles to be backed up as described in the example.
See “About setting up volumes for instant snapshots” on page 141.
For an Oracle database, it is not necessary to create snapshots of the volumes
containing the file systems for the redo log volumes or archived logs.
161Online database backup
Making an off-host backup of an online database