Well now I'm a bit nervous. My scores seem to be as bad or worse than Eric's.
Is performance in this task basically a disk i/o, and cpu bound task, or can
other things factor in? Just a little confused since our server isn't THAT
slow (P4-2.8ghz). DB is sitting on mirrored 10K scsi disks.
ACTIVITY Date Objects Examined Up/Hr
------------------ ---------- ---------------------------------
EXPIRATION 2005-03-08 97200
EXPIRATION 2005-03-08 104400
EXPIRATION 2005-03-09 104400
EXPIRATION 2005-03-10 100800
EXPIRATION 2005-03-11 108000
EXPIRATION 2005-03-12 100800
EXPIRATION 2005-03-13 93600
EXPIRATION 2005-03-14 104400
EXPIRATION 2005-03-15 86400
EXPIRATION 2005-03-16 104400
EXPIRATION 2005-03-17 104400
EXPIRATION 2005-03-18 108000
EXPIRATION 2005-03-19 100800
EXPIRATION 2005-03-20 97200
EXPIRATION 2005-03-21 97200
EXPIRATION 2005-03-22 421200
EXPIRATION 2005-03-23 111600
EXPIRATION 2005-03-24 108000
EXPIRATION 2005-03-25 108000
EXPIRATION 2005-03-26 97200
EXPIRATION 2005-03-27 104400
EXPIRATION 2005-03-28 100800
EXPIRATION 2005-03-29 100800
EXPIRATION 2005-03-30 122400
EXPIRATION 2005-03-31 104400
EXPIRATION 2005-04-01 104400
EXPIRATION 2005-04-02 97200
EXPIRATION 2005-04-03 100800
EXPIRATION 2005-04-04 97200
EXPIRATION 2005-04-05 403200
EXPIRATION 2005-04-06 108000
EXPIRATION 2005-04-07 75600
ANR1462I RUN: Command script TEST-EXP completed successfully.
PCT_UTILIZED AVAIL_SPACE_MB
------------ --------------
61.8 20000
Troy Frank
Network Services
University of Wisconsin Medical Foundation
608.829.5384
>>> [EMAIL PROTECTED] 4/7/2005 4:57:19 AM >>>
Hi *SM-ers!
Please help me with this and take the time to read this request!!!!
We're having serious performance problems with our TSM database. Part of the
discussion with IBM is how expiration should perform.
A technical document on the TSM website stated that one should be able to
expire 3.8 million objects per hour. As soon as I referred to this document
("How to determine when disk tuning is needed") IBM removed it from their
site!!!!
Expiration runs at a speed of 140.000 objects per hour in my shop an I know
for sure that some of you are running at 3.8 million or more and I like to
prove this to IBM.
I'm begging for your help with this. I would like to ask you to issue the
following SQL statements on your TSM server(s) and send the output directly
to me:
select activity, cast ((end_time) as date) as "Date" ,(examined/cast
((end_time-start_time) seconds as decimal(18,13)) *3600) "Objects Examined
Up/Hr" from summary where activity='EXPIRATION' and days (end_time)
-days(start_time)=0
select pct_utilized, avail_space_mb from db
The first statement calculates your expiration performance (objects/hour)
and the second one lists your database size and utilization.
Thank you VERY much for sending me your statistics in advance, I REALLY
appreciate it!!!
Kindest regards,
Eric van Loon
KLM Royal Dutch Airlines
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