Restoration and Datafile Media Recovery Using RMAN RMAN automates the procedure for restoring files. When you issue the RESTORE command, RMAN uses a server session to restore the correct backups and copies. The RMAN repository is used to select the best available backup set or image copies to use in the restoration. By default, RMAN does not restore a file if the file is already in the correct place and its header contains the correct information. In releases before Oracle9i, the files were always restored. When you issue the RMAN RECOVER command, RMAN applies changes from online redo log files and archived. | RMAN Complete Recovery Objectives After completing this lesson, you should be able to do the following: Describe the use of RMAN for restoration and recovery Perform complete recovery in ARCHIVELOG mode Restore datafiles to different locations Relocate and recover a tablespace by using archived redo log files Restoration and Datafile Media Recovery Using RMAN Restore files from backup sets or image copies by using the RMAN RESTORE command Recover files by using the RMAN RECOVER command Restoration and Datafile Media Recovery Using RMAN RMAN automates the procedure for restoring files. When you issue the RESTORE command, RMAN uses a server session to restore the correct backups and copies. The RMAN repository is used to select the best available backup set or image copies to use in the restoration. By default, RMAN does not restore a file if the file is already in the correct place and its header contains the correct information. In releases before Oracle9i, the files were always restored. When you issue the RMAN RECOVER command, RMAN applies changes from online redo log files and archived redo log files, or uses incremental backups to recover the restored files. Using RMAN you can perform recovery at the following levels: Database Tablespace Datafile In complete recovery, all of the redo entries in the archived redo logs files and online redo log files are used to recover the database. The damaged files are restored from a backup and the log files are used to update the datafiles to the current point in time. Using RMAN to Recover a Database in ARCHIVELOG Mode rman target / RMAN> STARTUP MOUNT RMAN> RESTORE DATABASE; RMAN> RECOVER DATABASE; RMAN> ALTER DATABASE OPEN; Using RMAN to Restore a Database in ARCHIVELOG Mode In this example you use RMAN to restore and recover the whole database. This example assumes that: A full backup taken using RMAN is available on disk. The current control files were not damaged and do not need to be restored. All datafiles are . | RMAN Complete Recovery Objectives After completing this lesson, you should be able to do the following: Describe the use of RMAN for restoration and recovery Perform complete recovery in ARCHIVELOG mode Restore datafiles to different locations Relocate and recover a tablespace by using archived redo log files Restoration and Datafile Media Recovery Using RMAN Restore files from backup sets or image copies by using the RMAN RESTORE command Recover files by using the RMAN RECOVER command Restoration and Datafile Media Recovery Using RMAN RMAN automates the procedure for restoring files. When you issue the RESTORE command, RMAN uses a server session to restore the correct backups and copies. The RMAN repository is used to select the best available backup set or image copies to use in the restoration. By default, RMAN does not restore a file if the file is already in the correct place and its header contains the correct information. In releases before Oracle9i, the files were always .
