RE: Backup performance (CFINT)

-|-----Original Message-----
-|From: owner-midrange-l@midrange.com
-|[mailto:owner-midrange-l@midrange.com]On Behalf Of Jeff Crosby
-|Sent: Monday, November 06, 2000 10:45 AM
-|To: IGNITE/400 Mailing List; Midrange Mailing List
-|Subject: Backup performance (CFINT)
-|
-|
-|Question:
-|
-|I'm about to move to RISC.  I have read about the CFINT governor.  If my
-|daily backup (library *ALLUSR) runs interactively in a restricted
-|system, will this governor kick in and not allow the backup to proceed
-|as fast as in batch?

No, probably.  At V4R4 and before if there is only one user, the governor
does not kick in.  I don't know about V4R5 on 800 series boxes - the
algorithm was changed.  The critical element is "restricted state".  If the
machine is not at a restricted state and other users are present, CFINT
could be triggered.

-|4 days a week (Mon-Thu), the operator inserts the tape into the drive
-|and takes the backup option.  This backup is then submitted and then
-|runs at 4am in batch.  On Friday evening, however, it runs immediately
-|(ain't nobody here on Saturday).  I used to do it interactively.  I was
-|afraid that this would kill performance under RISC, so I batched it.
-|The interactive job (which is in subsystem QCTL) stays active and keeps
-|the operator advised of the status.  The problem is the interactive job
-|user's message queue object does not get saved from QUSRSYS since it is
-|allocated to the interactive job.  If I go back to running this
-|interactively on Fridays, this problem would go away, but what about
-|that rascal CFINT job kicking in?
-|
-|--
-|-Jeff
-|The opinions expressed are my own and not necessarily
-|the opinion of my company.  Unless I say so.
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Richard Jackson
Richard Jackson and Associates Ltd.
IBM Business Partner
mailto:richardjackson@richardjackson.net
http://www.richardjacksonltd.com
Telephone: 1 (303) 808-8058


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