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

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.
Storage Foundation for Databases (SFDB) tools provide three commands that can
be executed by the database administrator and do not require root privileges:
■ dbed_vmchecksnap
■ dbed_vmsnap
■ dbed_vmclonedb
These commands enable 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.
About Database Storage Checkpoints and Storage
Rollback in SF Enterprise products
The Veritas Database Storage Checkpoints feature is available with SF Enterprise
products as part of the Veritas File System package and is used for the efficient
backup and recovery of Oracle databases. Database Storage Checkpoints can also
be mounted, allowing regular file system operations to be performed or secondary
databases to be started. Review the following information on Database Storage
Checkpoints and Storage Rollback and how to use these technologies through
Storage Foundation.
127About point-in-time copies
About Database Storage Checkpoints and Storage Rollback in SF Enterprise products