Comments on: Over-Configuring DBWR Processes - Part IV http://kevinclosson.wordpress.com/2007/08/21/over-configuring-dbwr-processes-part-iv/ Oracle-related Platform, Storage and Clustering Topics (with the occasional rant) Mon, 13 Oct 2008 15:40:41 +0000 http://wordpress.org/?v=MU hourly 1 By: DBWR and the Devil « die Seilerwerks http://kevinclosson.wordpress.com/2007/08/21/over-configuring-dbwr-processes-part-iv/#comment-29427 DBWR and the Devil « die Seilerwerks Sat, 01 Dec 2007 15:14:47 +0000 http://kevinclosson.wordpress.com/2007/08/21/over-configuring-dbwr-processes-part-iv/#comment-29427 [...] 1, 2007 by Don Seiler I was recently re-reading parts I, II, III and IV of Kevin Closson’s series on the perils of overconfiguring your db_writer_processes (which I [...] [...] 1, 2007 by Don Seiler I was recently re-reading parts I, II, III and IV of Kevin Closson’s series on the perils of overconfiguring your db_writer_processes (which I [...]

]]> By: kevinclosson http://kevinclosson.wordpress.com/2007/08/21/over-configuring-dbwr-processes-part-iv/#comment-22655 kevinclosson Tue, 21 Aug 2007 18:37:03 +0000 http://kevinclosson.wordpress.com/2007/08/21/over-configuring-dbwr-processes-part-iv/#comment-22655 Hi Paul, Honestly, database size doesn't dictate log size. I'll give you an example. Consider a 1GB database sustaining a 100% UPDATE transaction mix. This would generate a lot of logging yet the database is small. I tend to size redo starting at 5GB as the smallest--unless I'm doing a test that I need to force insane checkpoint activity. There are lots of articles out there discussing best practices for redo log sizing... Hi Paul,

Honestly, database size doesn’t dictate log size. I’ll give you an example. Consider a 1GB database sustaining a 100% UPDATE transaction mix. This would generate a lot of logging yet the database is small. I tend to size redo starting at 5GB as the smallest–unless I’m doing a test that I need to force insane checkpoint activity.

There are lots of articles out there discussing best practices for redo log sizing…

]]> By: Paul http://kevinclosson.wordpress.com/2007/08/21/over-configuring-dbwr-processes-part-iv/#comment-22650 Paul Tue, 21 Aug 2007 16:47:46 +0000 http://kevinclosson.wordpress.com/2007/08/21/over-configuring-dbwr-processes-part-iv/#comment-22650 Regarding redo log sizing, have you noticed any correlation between the size of the database and the best size for the logs? Regarding redo log sizing, have you noticed any correlation between the size of the database and the best size for the logs?

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