HP 3PAR Application Software Suite for Oracle Licenses - Manual (Page 11)

Once created, the Virtual Copy can be mounted on the backup server for off-host processing
purposes such as backup and database cloning.
A database Virtual Copy consists of multiple Virtual Copies of underlying 3PAR virtual volumes
used by Oracle datafiles, archive log destination, or both, depending on which option is specified
(online, offline, datafile, or archlog). An archive log Virtual Copy can be used in
conjunction with online or offline Virtual Copy to simulate an incremental backup.
If Recovery Manager for Oracle is configured to use Oracle RMAN for backup, an RMAN Recovery
Catalog must have been created and configured prior to running the create utility. The Recovery
Manager create utility performs Recovery Catalog synchronization during the Virtual Copy creation
process.
When creating an online Virtual Copy, the create utility performs the following actions:
•
Discovers devices (HP 3PAR virtual volumes) used by the datafiles and archive log destination.
•
Puts the database in backup mode.
•
Creates a Virtual Copy for the datafile virtual volumes.
•
Takes the database out of backup mode.
•
Switches online redo logs and archives them to archive log destination.
•
Re-synchronizes the Recovery Catalog to update with newly generated archive logs if the
Virtual Copy is to be backed up using Oracle RMAN.
•
Creates a Virtual Copy for the archive log destination virtual volumes.
A datafile Virtual Copy is created while the database is OPEN. The create utility performs the
following actions:
•
Discovers devices (HP 3PAR virtual volumes) used by the datafiles.
•
Puts the database in backup mode.
•
Creates a Virtual Copy for the datafile virtual volumes.
•
Takes the database out of backup mode.
An offline Virtual Copy is created while the database is CLOSED. The create utility performs the
following actions:
•
Starts up the database in MOUNTED mode to retrieve a list of datafiles and shuts down the
database.
•
Discovers devices (HP 3PAR virtual volumes) used by the datafiles.
•
Creates a Virtual Copy for the datafile virtual volumes.
An archive log Virtual Copy is created while the database is OPEN and performs the following
actions:
•
Discovers devices (HP 3PAR virtual volumes) used by the archive log destination.
•
Switches logs and archives online redo logs to archive log destination.
•
Re-synchronizes the Recovery Catalog to update with newly generated archive logs if the
Virtual Copy is to be backed up using Oracle RMAN.
•
Creates a Virtual Copy for the archive log destination virtual volumes.
NOTE: If the Virtual Copy is to be backed up using Oracle RMAN, a Recovery Catalog must
have been created and configured prior to running this utility. For an RAC database, archive log
destinations of all RAC instances must be on shared storage (same cluster file systems or same
ASM disk groups).
Recovery Manager for Oracle Utilities 11