From: Bob.Kelley@BRINKSINC.COM
Date: Thu Aug 21 2003 - 10:39:33 EDT
just a couple tuning parameters you should consider for tsm clients:
Add the following to your .opt file on the client:
txnbytelimit 2097152 **forces the client to buffer this much(2G)
data or the max # of files, (whichever comes first) before sending to the
server
which decreases network IO and should increase
performance dramatically
compressalways no
LARGECOMMBUFFERS yes
resourceutilization 6 ** this is the resource max parameter the
tsm client uses as its ceiling for starting processing threads(producers)
and data handler threads (consumers)
setting this to 5-6 is safe, but you may choose
to set it as high as 8 if you have the system resources....
TEST TEST TEST bc you can speed up a backup 4fold by using the above
Bobby Kelley
BRINKS
972-877-5341
|---------+---------------------------->
| | Billy Tyrer |
| | <wtyrer@CSC.COM> |
| | Sent by: IBM AIX |
| | Discussion List |
| | <aix-l@Princeton.|
| | EDU> |
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| | 08/21/2003 06:34 |
| | AM |
| | Please respond to|
| | IBM AIX |
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>---------------------------------------------------------------------------------------------------------------------------------------------|
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| To: aix-l@Princeton.EDU |
| cc: |
| Subject: AIX TSM problems!! |
>---------------------------------------------------------------------------------------------------------------------------------------------|
I have just upgraded one of our AIX 4.3.3 clients from ADSM 3.1 to TSM 4.1
running TDP 3.2 for SAP R3. Although the backup and restores work OK, they
are a lot slower. Is there any tuning parameters that need to be reset or
added?
Also when I tried to restore the above backup it failed with the following
error code. I tried to perform the restore again because I thought there
may be some network communication errors ( I was doing the task remotely )
but after about 4 to 5 hours it failed, with the same error code.
BR266E Program '/usr/sap/ES0/SYS/exe/run/backint -u ES0 -f restore -i
/oracle/ES0/sapbackup/.rdlipdri.lst -t file -p /oracle/ES0/dbs/initES0.utl'
interrupted, exit status: 8b
BR272E Execution of program '/usr/sap/ES0/SYS/exe/run/backint -u ES0 -f
restore -i /oracle/ES0/sapbackup/.rdlipdri.lst -t file -p
/oracle/ES0/dbs/initES0.utl' through pipe failed.
Any ideas of what may be going wrong?
Just for info the SAP database I am trying to restore is approx 420GB in
size.
I have restored the system OS, via a mksysb backup, to how it was prior to
the TDP upgrade and restore from a previous ADSM SAP backup to get the
system back. This worked OK!
Any information would be useful.
Regards,
Billy Tyrer
CSC
Technical Support Analyst
UNIX Centre of Excellence
IBM Certified Specialist - AIX V4.3 System Support
_______________________________________________________________________
E-Mail: wtyrer@csc.com
Telephone: +44 (0) 1257 236096
Fax: +44 (0) 1257 236508
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