VERITAS Storage Foundation 4.1 Oracle Administrator's Guide

Chapter 12, Using the VERITAS Storage Foundation for Oracle Graphical User Interface
Prerelease 8 September 2005, 8:55am Managing Snapshots with Database FlashSnap
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Resynchronizing a Database to a Snapshot
Resynchronizing your database to a snapshot, also known as reverse resynchronization, reverts
your database to a snapshot. Use this option if your database becomes corrupted and you need to
restore your database to a previous point-in-time.
Prerequisites
◆ You must be logged in as the Oracle primary database administrator.
◆ You must shut down the primary database and the clone database; also, unmount the file
systems.
Usage Notes
◆ See the dbed_vmsnap(1M) manual page for more information.
▼ To resynchronize a database to a snapshot
1. Click a snapplan, located under the Snapplans icon, in the object tree. (You may need to
expand the tree view to find the icon.)
2. Select one of the following methods to resynchronize the database to a snapshot.
◆ From the menu bar, select Snapplan > Reverse Resync Snapshot.
or
◆ Right click the snapplan to bring up a pop-up menu. Then click Reverse Resync
Snapshot.
The Reverse Resync wizard is displayed.
3. Verify the Oracle SID and snapplan information. These are read-only fields.
4. Click the Begin button, then click Finish to start the reverse resynchronization process. To
view details, click the Show details checkbox. The details are displayed in a pop-up window.
5. At the confirmation prompt, click Ye s to continue.
The Begin option performs the following actions:
◆ Imports the disk group that was deported from the secondary host and joins it back to the
original disk group.
◆ Mounts the snapshot volumes.
◆ Mounts the file systems that are configured for the primary database.