What TSM processes are running during the spikes? Is it a dedicated TSM
For example, if expiration is running and your DB is configured well, I
would expect 100% CPU utilization. On the other hand, if migration is
running and you are seeing 100% CPU, I would start looking for a
hardware or driver problem.
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Sent: Monday, August 20, 2007 2:37 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Multi-Core CPU usage on TSM Linux x86_64 server
I realize that some of this has been discussed before, but I can seem to
find a thread on it and management is looking for
On our new, big, beefy Dell 2900 TSM server (8GB RAM, 2-Quad-Core Xeon
processors) , we are seeing some high CPU spikes and are wondering why.
Management wants to know, does the TSM server make good use of the
Yes we realize that I/O is the main factor, especially with 225+
although the daily backup load is < 2TB)
This is TSM 5.4.0 x86_64 on RedHat 4. Going to upgrade to 5.4.1 soon.
I have gone through all the various TSM tuning guides/slideshows and we
are set for all optimal/recommended values. DBBuffsize is at 768MB
books I see talk about 1/8 to 1/2 of the memory, not to exceed 1GB). The
database is divided into 20GB chunks.
Virginia Commonwealth University
Office of Technology Services
University Computing Center
e-mail: zforray AT vcu DOT edu
This e-mail (including any attachments) is confidential and may be legally
privileged. If you are not an intended recipient or an authorized
representative of an intended recipient, you are prohibited from using, copying
or distributing the information in this e-mail or its attachments. If you have
received this e-mail in error, please notify the sender immediately by return
e-mail and delete all copies of this message and any attachments.