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DB daily change rate - RMAN arch logs

edited Aug 13, 2014 5:02AM in Database Administration (MOSC) 7 commentsAnswered

Oracle 11gr2

RAC- 4 nodes

We run our RMAN backups on 2 nodes - Archive logs four times a day and also run LVL1 every night.

I am trying to figure out daily change rate - what is the best way? any queries for RAC DB?

1. I thought if I run the Query #1 in both nodes(v$rman_backup_job_details) and add the input bytes for each archive log backups for the day that would give me the approximately "the daily change rate, is this correct?  The confusing part is that when I run this query in each nodes, the "input bytes" are exactly the same - how could be possible?

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