We had a client that had high CPU usage due to some TSM database corruptions. The CPU utilization was constantly high, even when the server had no sessions or processes running. Now, this was an NT box, but once we ran some AUDITDB's with FIX=YES their CPU went back to normal. They were also seeing database intensive tasks like EXPIRE INVENTORY, DEL VOL DISCARD=YES take forever. If these are some of your symptoms, you may want to run an AUDITDB FIX=NO to see if you have anything going on there....
Bill Boyer DSS, Inc. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of Seay, Paul Sent: Wednesday, June 26, 2002 8:31 AM To: [EMAIL PROTECTED] Subject: Re: Performance Your CPU utilization profile does not match mine so, I do not know if I can help. We have a P660-6H1 identically configured, except I use Shark Disk and Magstar tape using FC and the Ethernet is Gigabit. The only time I see high CPU utlization is during backups coming down the ethernet. At about 70MB/sec it pegs the system. A copy of a diskpool to tape or tape to tape takes about 3% of the system. We currently have 12 FC drives on the systems and have never seen it over 35% utlization during no backups coming in, but CPU usage is linear on the arrival of IP packets. Our disk pool is about 512GB we copy about 7TB a day, because we create an onsite and offsite copy. We backup about 850GB a day from around 150 clients (AIX, NT, W2K, SGI, Solaris Clients). We have a lot of data that will be moved to SAN tape soon that will relieve the Gigabit. We are adding 2 more FC cards (will be 6 then for tape coping). Do not know what to say. I am getting about twice the amount through the system with the same configuration except. GIGABIT and FC disk and tape. Paul D. Seay, Jr. Technical Specialist Naptheon, INC 757-688-8180 -----Original Message----- From: Christoph Pilgram [mailto:[EMAIL PROTECTED]] Sent: Wednesday, June 26, 2002 6:48 AM To: [EMAIL PROTECTED] Subject: Performance Hi all, a question about increasing the performance of my TSM-Server: TSM-Server : IBM H80 ( 2-way RS64III-450MHz-processor, 2GB memory ), AIX 4.3.3 , TSM 4.1.4 I see with the monitor-tool that my server has over a longer period a cpu-utilization of more than 80%. This server only handles TSM, no other task. But there is a lot of data-transfer from backup-pools to copy-pools and from disk-pool to tape-pool (150 GB disk-pool, data-transfer to copy-pool about 800 GB per day). I have some money left for increasing the performance : Does TSM support and use a second processor ? Thanks for help Chris
