VERITAS Storage Foundation 4.1 Oracle Administrator's Guide

Backing Up the Database from Snapshot Volumes (dbed_vmclonedb) Prerelease 8 September 2005, 8:55am
236 VERITAS Storage Foundation for Oracle Administrator’s Guide
Backing Up the Database from Snapshot Volumes
(dbed_vmclonedb)
Snapshots are most commonly used as a source for backing up a database. The advantage of using
snapshot volumes is that the backup will not contest the I/O bandwidth of the physical devices.
Making the snapshot volumes available on a secondary host will eliminate the extra loads put on
processors and I/O adapters by the backup process on the primary host.
A clone database can also serve as a valid backup of the primary database. You can back up the
primary database to tape using snapshot volumes.
The figure below, “Example System Configuration for Database Backup on the Primary Host” on
page 239 shows a typical configuration when snapshot volumes are located on the primary host.