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More RMAN Enhancements...
Archive log deletion policy
- Automatic clean up of obsolete logs
RESTORE DATABASE PREVIEW
- Identify the backups that would be used
Restore failover
- If error reading backup, RMAN keeps trying different backup copies until all possible exhausted
CONVERT Command
- Convert datafiles to different platform
Notes:
Here is a brief description of additional Oracle10g RMAN enhancements:
The CONFIGURE command can be used to configure an archivelog deletion policy. There are 2 main options: “NONE”, which means RMAN can delete archive logs from the flash recovery area only after they’ve been backed up and are obsolete (according to the configured retention policy). “APPLIED ON STANDBY” means the archive logs can be deleted if they have been applied to a standby database.
A new RESTORE DATABASE PREVIEW command is available which identifies which backups RMAN would use to perform the restore.
RMAN will automatically failover to another backup piece (even from an older backup if necessary) if corruption is encountered. It will continue to failover until a non-corrupt backup is found or all possibilities are exhausted.
RMAN 10g provides a CONVERT command to convert datafiles to a different platform. For example, a datafile from a Solaris server could be transported to a Windows server (consider using data pump transportable tablespace and DBMS_FILE_TRANSFER; refer to the Utilities Enhancements lesson in this course book for an example). Refer to the Oracle Backup and Recovery Reference 10g Release 2 for more information on the CONVERT command.