HP 3PAR Application Software Suite for Oracle - Manual (Page 18)

2.2 Virtual Copies
Recovery Manager 3.0.3/3.0.4 for Oracle User’s Guide
2.6.10 Integration with 3PAR Virtual Lock 2.14
2.7 The Virtual Copy Repository 2.15
2.7.1 The Virtual Copy Repository Removal Utility 2.15
2.8 Virtual Copy Policy 2.15
2.9 Database Rollback from a Virtual Copy 2.16
2.10 Recovery Manager and Third-Party Backup Tools 2.17
2.11 Recovery Manager with Oracle Standby Database 2.18
2.11.1 The Database Backup Utility 2.18
2.11.2 The Database Restoration Utility 2.22
2.12 Recovery Manager with Remote Copy 2.23
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:
■ Database host - A host where the Oracle database is running.
■ Backup Host - A host where all 3PAR Recovery operations are initiated.
2.1 Virtual 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