HP 3PAR Application Software Suite for Oracle - Manual (Page 128)

6.14
Recovery Manager 3.0.3/3.0.4 for Oracle User’s Guide
COMMAND
vcdba_create
SYNTAX
vcdba_create -s <oracle_sid> -p <db_host>
[-o online|offline|archonly|datafile] [-r <time>{d|D|h|H} -f] [-v]
DESCRIPTION
The vcdba_create command can be used to create an online, offline, datafile, or archive log
virtual copy of a specified Oracle database instance. The Oracle database instance can be either
a regular database or a physical standby database. The database virtual copy can be set to be
retain for a period of time (retention time) preventing them from being removed accidentally
or intentionally.
An online or offline virtual copy is a consistent point-in-time snapshot image of the database.
A datafile virtual copy is a snapshot image of all datafiles without archive logs. An archive log
virtual copy is a snapshot image of all archive logs without datafiles. The specified database
instance must be offline when creating an offline virtual copy or online when creating an
online, datafile or archive log virtual copy. The database instance is considered to be offline if
it is in CLOSED mode. If the database is a RAC database, all RAC instances must be offline. The
database instance is considered to be online if it is in OPEN mode (for regular database) or in
managed recovery mode (for physical standby database). If the database is a RAC database,
the specified database instance must be online, all other RAC instances can be either online or
offline.
If the database being snapshot is a physical standby database and Oracle release is not 11g, the
Oracle parameter file and control file of the production database must be backed up manually
in addition to the virtual copy. This is because the parameter file and control file are not
compatible between the standby and production database.
When creating an online virtual copy:
■ If the specified database instance is a regular database, all tablespaces will be temporarily
put into backup mode before the virtual copy of datafile virtual volumes is created.
The tablespaces will be then taken out of backup mode. An archive log switch will be
performed before virtual copies of archive log virtual volumes are created.