Re: OEM repository redo generation

From: Rich Jesse <rjoralist3_at_society.servebeer.com>
Date: Tue, 11 Nov 2014 15:03:54 -0600 (CST)
Message-ID: <335a13b7ef0dbe8ea984cea8c345d82a.squirrel_at_society.servebeer.com>



Jeremy posted:

> Quick question for someone out there with an OEM repository - how many
> targets and hosts do you have, and what's your typical hourly redo
> generation rate on the repository database?

For a smaller scale comparison, my 12.1.0.3 EM does 120MB/hr redo with:

  • 18 DB instances
  • 5 hosts / 5 listeners / 5 agents
  • 86 total targets / 64 targets with status

I used this to determine average redo generation on the EM12c repo DB:

SELECT
(SUM(BLOCKS*BLOCK_SIZE)/1024/1024 / (MAX(NEXT_TIME) - MIN(FIRST_TIME))) / 24  REDO_MB_PER_HOUR
FROM V$ARCHIVED_LOG; Rich

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Received on Tue Nov 11 2014 - 22:03:54 CET

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