Hi Paul and Miles!
Thanks for replying! I was impressed by your figures Miles! 1260 objects per
second, wow! I don't know much about UNIX hardware so I don't know what a
6h1 is, but it must be a lot faster that a H70.
I will plan a upgrade to 4.2.2.12 next week, let's see if that helps.
For now, I will wait with 5.1, from experience I'm always a bit afraid for
TSM maintenance level 1 software. I will upgrade to 5.1 as soon as 5.1.2.0
becomes available though.
Kindest regards,
Eric van Loon
KLM Royal Dutch Airlines
-----Original Message-----
From: Seay, Paul [mailto:seay_pd AT NAPTHEON DOT COM]
Sent: Wednesday, September 11, 2002 04:12
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Expiration processing: There are many fixes in this area
During backups and a maxed out system I fired up an expiration to see what
my worse rate is. It was an average of 187 objects a second. Cache hit
rate was only 95.7 during this time. So, yes, you have a problem, and I
think I know what it is. Until you get to 4.2.2.7, and really higher or
5.1.1.4 if V5 there are some nasty expiration locking problems. You may
want to consider getting on 4.2.2.12 or 5.1.1.4 depending on your situation.
Paul D. Seay, Jr.
Technical Specialist
Naptheon Inc.
757-688-8180
-----Original Message-----
From: Loon, E.J. van - SPLXM [mailto:Eric-van.Loon AT KLM DOT COM]
Sent: Tuesday, September 10, 2002 4:49 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Expiration processing
Hi *SM-ers!
Last week I read about Rodney Clark doing a 400 objects a second expiration.
I checked my expiration process: it's inspecting about 20 objects a second.
Ok, maybe he has got faster hardware, but 20 times faster? I have TSM
4.2.2.0 running on a H70 with the database on raw logical volumes (36 Gb.
10K rpm SSA disks, TSM mirroring). My database cache hit is 98.53%. I was
hoping that some people out there (with somewhat similar setup) could share
their expiration performance with me. Does anybody have some tips? Where
should I start troubleshooting? Thank you very much in advance for your
reply! Kindest regards, Eric van Loon KLM Royal Dutch Airlines
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