Veritas Storage Foundation 5.1 SP1: Storage and Availability Management for Oracle (5900-1504, April 2011)

Using Database FlashSnap

for backup and off-host

processing

This chapter includes the following topics:

■ Planning to use Database FlashSnap

■ Preparing hosts and storage for Database FlashSnap

■ About creating database snapshots

■ FlashSnap commands

Planning to use Database FlashSnap

Before using Database FlashSnap, you must first determine your intended

application. You will then need to make the following decisions:

■ Which snapshot mode is appropriate: online, offline, or instant?

■ Will you need one or two hosts (off-host)?

Selecting the snapshot mode

If your purpose is to use the snapshot for backup or to recover the database after

logical errors have occurred, choose the online option. In the event that your

production database is offline, choose offline. If you intend to use the snapshot

for decision-support analysis, reporting, development, or testing, choose instant.

An instant snapshot is not suitable for recovery because it is not necessarily an

exact copy of the primary database.

Chapter