Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

See “Backing up the database from snapshot volumes (dbed_vmclonedb)”
on page 274.
You can also back up the primary database to tape using snapshot volumes.
The resynchronization functionality of Database FlashSnap allows you to quickly
refresh the clone database with up-to-date information from the primary database.
Reducing the time taken to update decision-support data also lets you generate
analysis reports more frequently.
Using Database FlashSnap to clone a database
In a single-host configuration, the dbed_vmclonedb command creates a clone
database on the same host. The command can also be used to shut down the clone
database and unmount its file systems. When creating or unmounting the clone
database in a single-host configuration, -r relocate_path is required so that the
clone database's file systems use different mount points than those used by the
primary database.
In an Oracle RAC cluster configuration, dbed_vmclonedb can create a clone
database on the CVM master or slave node. Also in Oracle RAC, you must use -r
relocate_path when creating or unmounting the clone database.
When used in a two-host configuration, the dbed_vmclonedb command imports
the snapshot disk group/disk groups, mounts the file systems on the snapshot
volumes, and starts a clone database. It can also reverse the process by shutting
down the clone database, unmounting the file systems, and deporting the snapshot
disk groups. You must use -o server_name=svr_name when cloning a database.
This also applies to an Oracle RAC configuration.
Warning: When creating a clone database, all Storage Checkpoints in the original
database are discarded.
279Using Database FlashSnap for backup and off-host processing
Cloning a database (dbed_vmclonedb)