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Thread: DB Backup time

  1. #1
    Oracle Administrator
    Join Date
    Oct 2011

    DB Backup time

    If we take a backup in tape (database size is 1 Tb) how much time it takes?

    If we take a backup in disk (database size is 1 Tb) how much time it takes?

  2. #2
    Expert Oracle Administrator
    Join Date
    Oct 2011
    New Delhi, India
    It also depends on the IO , the RAID level on the location where you place the backup , the backup method you are using etc.

    As a generic estimate , I would say that a 1TB backup would take approx 8-10 hours,
    Depending on the number of blocks being used , RMAN may complete it in 6-8 hours as RMAN does not backup empty blocks.

    But dont be surprised if your backup of 1TB takes 10 hours to complete , or even if it completes within 5 hours using RMAN.

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