VERITAS Storage Foundation 4.1 Oracle Administrator's Guide

Prerelease 8 September 2005, 8:55am 197

Using Database FlashSnap for Backup and

Off-Host Processing

This chapter describes how to use VERITAS Database FlashSnap to create a point-in-time copy of

a database for backup and off-host processing. Database FlashSnap allows you to make backup

copies of your volumes online with minimal interruption to users.

VERITAS Database FlashSnap is included with VERITAS Storage Foundation Enterprise Edition.

Database FlashSnap lets you capture an online image of an actively changing database at a given

instant, known as a snapshot. You can perform backups and off-host processing tasks on snapshots

while providing continuous availability of your critical data.

Database FlashSnap commands can be executed from either the command line or the GUI.

Topics covered in this chapter include:

◆ “How VERITAS Database FlashSnap Works” on page 198

◆ “Planning Considerations” on page 203

◆ “Preparing Hosts and Storage for Database FlashSnap” on page 204

◆ “Summary of Database Snapshot Steps” on page 216

◆ “Creating a Snapplan (dbed_vmchecksnap)” on page 222

◆ “Validating a Snapplan (dbed_vmchecksnap)” on page 229

◆ “Displaying, Copying, and Removing a Snapplan (dbed_vmchecksnap)” on page 232

◆ “Creating a Snapshot (dbed_vmsnap)” on page 235

◆ “Backing Up the Database from Snapshot Volumes (dbed_vmclonedb)” on page 238

◆ “Cloning a Database (dbed_vmclonedb)” on page 244

◆ “Resynchronizing the Snapshot to Your Database” on page 252

◆ “Resynchronizing Your Database to the Snapshot” on page 254

◆ “Removing a Snapshot Volume” on page 258

◆ “Using Database FlashSnap in an HA Environment” on page 259