Скачать с ютуб rman backup || rman backup optimization || rman configuration || Oracle 12c в хорошем качестве

rman backup || rman backup optimization || rman configuration || Oracle 12c

In this oracle database tutorial will learn rman backup with optimization configured using rman backup commands in Oracle 12c. Oracle rman backup optimization. oracle database backup Rman Backup Configuration. - #backup #rmanbackup #oraclerman #oracledatabasesolutions #rmanbackupcommands - Questions: How to reduce rman backup time? How rman improves backup time? rman configuration rman backup configuration. How to take rman backup? Links https://unirac.in/blog https://unirac.in/ To Clear rman:CONFIGURE BACKUP OPTIMIZATION CLEAR; Overview of RMAN Backup Optimization When you enable backup optimization, the BACKUP command skips backing up files when the identical file has been backed up to the specified device type. Run the RMAN CONFIGURE command to enable and disable backup optimization. Backup optimization skips the backup of files in certain circumstances if the identical file or an identical version of the file has been backed up. If RMAN determines that a file is identical and it has been backed up, then it is a candidate to be skipped. RMAN must do further checking to determine whether to skip the file, however, because both the retention policy and the backup duplexing feature are factors in the algorithm that determines whether RMAN has sufficient backups on the specified device type. RMAN uses backup optimization when the following conditions are true: The CONFIGURE BACKUP OPTIMIZATION ON command has been run to enable backup optimization. You run BACKUP DATABASE, BACKUP ARCHIVELOG with ALL or LIKE options, or BACKUP BACKUPSET ALL, BACKUP RECOVERY AREA, BACKUP RECOVERY FILES, or BACKUP DATAFILECOPY. For example, assume that you have configured backup optimization. These commands back up to tape the database, all archived logs, and all backup sets: BACKUP DEVICE TYPE sbt DATABASE PLUS ARCHIVELOG; BACKUP DEVICE TYPE sbt BACKUPSET ALL; If no backed-up file has changed since the last backup, then RMAN does not back up the files again. RMAN also does not signal an error if it skips all files specified in the command because the files have already been backed up. You can override optimization at any time by specifying the FORCE option on the BACKUP command. For example, you can run: BACKUP DATABASE FORCE; BACKUP ARCHIVELOG ALL FORCE;