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Home -> Community -> Mailing Lists -> Oracle-L -> RMAN: What blocks are backed up with a full backup?
Our RMAN backup is backing up much more than the actual data blocks when
doing a full backup. I know that it backs up all blocks that have "ever been
used", but I'm trying to figure out exactly what that means. My first
thought was that it backs up all blocks below the HWM, but I analyzed the
tables and that is not the case.
Sometimes it backs up more blocks than exist below the HWM for the tables and sometimes it backs up fewer blocks than those below the HWM.
We are doing this to determine what we can do to reduce the size of the backup.
Anyone have an idea how this works?
Keith
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Author: Keith Moore
INET: kmoore7_at_jcpenney.com
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