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Thread: RMAN Compression

  1. 08-05-2002, 03:18 PM #1
    marist89's Avatar
    marist89
    marist89 is offline Super-Genius
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    Does anybody know if RMAN can compress data when you backup to disk? For example, if I use RMAN to backup to tape, my tape device will take care of the compression. If I backup to disk, there is no compression used.
    Jeff Hunter
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  2. 08-05-2002, 03:51 PM #2
    dave777
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    RMAN does not compress data when you backup to disk.
    It only does a compression in a way that only non-empty data blocks are copied and the rest is compressed.

    Regards
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  3. 08-06-2002, 03:00 AM #3
    julian
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    Jeff, this is from the Oracle documentation. You probably have read it though ...

    "Some media management products can compress data. Real-world experience shows that software compression does not help improve local backup performance. It helps only if the data is transferred over a slow network."
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