Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

This command can help you avoid I/O contention. For example, you can use the

information to avoid backing up two tablespaces that share the same physical

disk.

Both storage object statistics and the storage structure are displayed in the Veritas

Storage Foundation for Oracle GUI.

See “About Storage Mapping ” on page 133.

How Veritas Database FlashSnap works

Veritas Database FlashSnap is a feature included with Veritas Storage Foundation

Enterprise Edition. It is also a separately licensed option available with Veritas

Storage Foundation Standard Edition.

Veritas Database FlashSnap offers a flexible and efficient means of managing

business-critical data. Database FlashSnap lets you capture an online image of an

actively changing database at a given instant, called a point-in-time copy. You

can perform system backup, upgrade, or perform other maintenance tasks on

point-in-time copies while providing continuous availability of your critical data.

If required, you can offload processing of the point-in-time copies onto another

host to avoid contention for system resources on your production server.

Database FlashSnap takes advantage of the Persistent FastResync and Disk Group

Content Reorganization features of VxVM. Database FlashSnap also streamlines

database operations. Once configured, the database administrator can create

snapshots, resynchronize data, and reverse resynchronize data without involving

the system administrator.

Veritas Storage Foundation for Oracle provides three commands that can be

executed by the database administrator and do not require root privileges:

■ dbed_vmchecksnap

■ dbed_vmsnap

■ dbed_vmclonedb

These commands let database administrators take advantage of the VxVM snapshot

functionality without having to deal with storage operations in day-to-day database

uses. To use Database FlashSnap, you must configure the volumes used by the

database.

See “Hosts and storage for Database FlashSnap ” on page 229.

Introducing Veritas Storage Foundation for Oracle

How Veritas Database FlashSnap works