HP 3PAR Application Software Suite for Oracle - Manual (Page 12)

The Virtual Copy Creation Utility
The Virtual Copy creation utility (rmora_create command) of HP 3PAR Recovery Manager
Software for Oracle creates an online, offline, datafile, or archive log Virtual Copy of an Oracle
database.
•
Online or offline Virtual Copy - A point-in-time snapshot image of a database while it is OPEN
(online) or CLOSED (offline).
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Archive log Virtual Copy - A snapshot image of the archive log destination of a database
while it is online (OPEN).
•
Datafile Virtual Copy - A point-in-time snapshot image of the datafiles of a database while it
is online (OPEN). A datafile Virtual Copy alone cannot be used for recovery without the archive
logs generated up to the point when the Virtual Copy is taken. Ensure that all required archive
logs exist.
After creating the Virtual Copy, it 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 HP 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 be 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:
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Discovers devices (HP 3PAR virtual volumes) used by the datafiles and archive log destination.
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Puts the database in backup mode.
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Creates a Virtual Copy for the datafile virtual volumes.
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Takes the database out of backup mode.
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Switches online redo logs and archives them to archive log destination.
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Re-synchronizes the Recovery Catalog to update with newly generated archive logs if the
Virtual Copy is to be backed up using Oracle RMAN.
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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.
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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.
12 Overview of Recovery Manager Operations