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Al Barsa, Jr. wrote: > At 04:56 PM 3/9/98 -0600, you wrote: > >Can someone steer me in the direction of statistics about using Commitment > Control. I have only found the Advanced Backup and Recovery text talking > about CC, so far. <snip> > First of all, commitment control requires journaling. The overhead of > journaling is about 5%, assuming the journal receiver is in a separate ASP > that has not overflowed. The new 'remote journaling' support in V4R2 is > about 14%. 5% ?? Wow! I'm surprised it's so high. Would that be 5% of CPU usage or 5% of average I/O time attributted to a job? I would have expected that journalling with commitment control to a separate ASP (where your head movement is going to be next to nil) would be almost imperceptable. Do many people see this large an impact? jte -- John Earl Lighthouse Software Inc. 8514 71st NW Gig Harbor, WA 98335 253-858-7388 johnearl@lns400.com Without Lighthouse Network Security/400, your AS/400 is wide open. -- +--- | This is the Midrange System Mailing List! | To submit a new message, send your mail to MIDRANGE-L@midrange.com. | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
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