Paul:
BRMS will have some small effect on the performance (it has to read its
databases) but not what you're reporting. I suspect the restore is causing
the disk I/O to spike and since restores are one thing that run in the
machine pool, paging/faulting there. I suspect you've got the machine pool
set up to be fairly small since ordinarily it does not use that much memory.
I suggest you bump that up considerably if possible during a restore. I/O
is what it will be. If you are driving lots of I/O then it's going to show
up.
Is this a hosted environment or real disk?
--
Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Steinmetz, Paul
Sent: Monday, July 02, 2018 10:58 AM
To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxx>
Subject: BRMS RSTLIBBRM jobs impacting RDI and LPAR performance
Occasionally, we have to run some BRMS restore jobs (RSTLIBBRM) during prime
shift, 8-5.
The BRMS restore jobs are having a large impact on RDI performance, and
other LPAR jobs.
From MPG perf graphs, disk response time, machine pool faults have large
increases.
Has anyone from the group have/seen this same behavior.
What, if anything, can be done to minimize/eliminate this impact.
Also, what system jobs are used for the RDI communications?
Thank You
_____
Paul Steinmetz
IBM i Systems Administrator
Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071
610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home
psteinmetz@xxxxxxxxxx<mailto:psteinmetz@xxxxxxxxxx>
http://www.pencor.com/
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