RE: question on rman backup incremental level 0
- From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
- To: <guangmei@xxxxxxxxx>, "oracle-l-freelists" <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 27 Aug 2008 14:02:06 -0700
1. Is this because RMAN level 0 backup only backs up the blocks that
have been written, and escapes empty blocks in data files?
>>> Yes.
2. How does RMAN determine which datafiles to group together, to create
different backupsets?
>>> I'm not positive on this, but IIRC it tries to size them evenly,
e.g. if you have 2 backup sets and have one 100GB datafile and 4 25GB
datafiles, it will put the 100GB datafile in one backupset and the other
4 files in the other backupset.
Regards,
Brandon
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