You issued the following RMAN command to back up the database:RMAN> RUN{
ALLOCATE CHANNEL c1 DEVICE TYPE sbt
BACKUP DATABASE
TAG quarterly
KEEP FOREVER
RESTORE POINT FY06Q4;
}
Which two statements are true regarding the backup performed? (Choose two.)
A.
Archived redo log files are backed up along with data files.
B.
Only data files are backed up and a restore point named FY06Q4 is created.
C.
Archived log files are backed up along with data files, and the archived log files are deleted.
D.
The command creates a restore point named FY06Q4 to match the SCN at which this backup is consistent.
Explanation:
keepOption
Overrides any configured retention policy for this backup so that the backup is not considered obsolete, as
shown in Example 2-26.
You can use the KEEP syntax to generate archival database backups that satisfy business or legal
requirements. The KEEP setting is an attribute of the backup set (not individual backup piece) or image copy.
Note: You cannot use KEEP with BACKUP BACKUPSET.
With the KEEP syntax, you can keep the backups so that they are considered obsolete after a specified time
(KEEP UNTIL), or make them never obsolete (KEEP FOREVER). As shown in Example 2-27, you must be
connected to a recovery catalog when you specify KEEP FOREVER.
Note: You can use CHANGE to alter the status of a backup generated with KEEP.
See Also: keepOption for more information about backups made with the KEEP option
Creating a Consistent Database Backup for Archival Purposes
This example uses a keepOption to create an archival backup set that cannot be considered obsolete for one
year. The example backs up the database, archives the redo in the current online logs to ensure that this new
backup is consistent, and backs up only those archived redo log files needed to restore the data file backup to a
consistent state.
The BACKUP command also creates a restore point to match the SCN at which this backup is consistent. The
FORMAT parameter must be capable of creating multiple backup pieces in multiple backup sets.
BACKUP DATABASE
FORMAT ‘/disk1/archival_backups/db_%U.bck’
TAG quarterly
KEEP UNTIL TIME ‘SYSDATE + 365’
RESTORE POINT Q1FY06;