RMAN incremental

Dear,
Hello
Sorry if I can't write English well,
my (datafiles) size of the database is about 1.4 GB.
I take level 0 RMAN incremental backup and size of output file is about 1.1 GB
After that, I put on the record of a table (by change of test)
and I take incremental backup of level 1 and output file size is about 1.1 GB (level 0)
but I think that the level 1 just changed the block and must be lower than level 0.

RMAN > backup database incremental level 0 FORMAT 'd:\rm\L0_%d_t%t_s%s_p%p ';

RMAN > backup database incremental level 1 FORMAT "d:\rm\L1_%d_t%t_s%s_p%p".


Why the size for levels 0 and 1 is same?

Thank you and best regards
Hassan

In theory, the backup of the L1 must be smaller because he must capture only changed blocks (it is not a requirement that you create a BCT - one file BCT file helps speed up the incremental backup, its presence or absence has nothing to do with the size of the incremental backup of L1).

You must determine if there were other, several changes to the database that have also taken place between two backups.

Hemant K Collette

Tags: Database

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