HP StoreServ Application Suite for Oracle Media manual Virtual Copies

Recovery Manager for Oracle User’s Guide
2.7	The Virtual Copy Repository	2.14
2.7.1 The Virtual Copy Repository Removal Utility		2.14
2.8	Virtual Copy Policy	2.15
2.9	Database Rollback from a Virtual Copy	2.15
2.10 Recovery Manager and Third-Party Backup Tools		2.16
	2.10.1 The Database Backup Utility	2.16
	2.10.2 The Database Restoration Utility	2.20
2.11 Recovery Manager with Remote Copy		2.21

This chapter introduces virtual copy technology and provides instructions for using 3PAR Recovery Manager to back up and restore Oracle databases.

In this document, the following terminology is used:

■primary host - A host machine where the Oracle database installation occurs.

■backup host - A host machine where Recovery Manager for Oracle operations and backup media installation take place.

2.1Virtual Copies

A virtual copy is a point-in-time image of a virtual volume created using the copy-on-write technique. It is composed of a pointer to the parent virtual volume and a record of all the changes made to the parent since the virtual copy was created. These changes can be rolled back to reproduce the parent’s earlier state.

A virtual copy can be exported to or mounted on a server to allow regular operations such as backup or off-host processing.

Within 3PAR Recovery Manager, a virtual copy of a database is a point-in-time image of the database. It consists of virtual copies of the virtual volumes where the data files and/or archive logs reside. Recovery Manager can be used to create an online, offline, datafile, or archive log virtual copy of an Oracle database. An online or offline virtual copy is a point-in-time image of a database, which is taken while the database is OPEN (online) or CLOSED (offline), respectively. A datafile virtual copy is a point-in-time image of all database's datafiles, which is taken while the database is OPEN (online). An archive log virtual copy is a point-in-time image of database's archive log destination, which is taken while the database is online (OPEN).

2.2

Virtual Copies