The few spikes/slowdowns I recall were during DB initialization but others have commented about some backups/restores taking 3-4 times longer than usual. The CPU spikes are reported by hobbit/bigbrother, our monitoring system.
Yes, this is a dedicated server. Nothing but TSM running ! Z Andy Huebner <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[email protected]> 08/20/2007 03:47 PM Please respond to "ADSM: Dist Stor Manager" <[email protected]> To [email protected] cc Subject Re: [ADSM-L] Multi-Core CPU usage on TSM Linux x86_64 server What TSM processes are running during the spikes? Is it a dedicated TSM server? 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. Andy Huebner -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Zoltan Forray/AC/VCU Sent: Monday, August 20, 2007 2:37 PM To: [email protected] 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 recommendations/thoughts/feedback. 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 multi-core/cpu hardware? Yes we realize that I/O is the main factor, especially with 225+ clients, 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 (some books I see talk about 1/8 to 1/2 of the memory, not to exceed 1GB). The database is divided into 20GB chunks. ---------------------------------------------------- Zoltan Forray Virginia Commonwealth University Office of Technology Services University Computing Center e-mail: [EMAIL PROTECTED] voice: 804-828-4807 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. Thank you.
