Thanks Dirk..... TCPWindowsize is set to 63. We do run with Shareddynamic but the retry count is set to one.
The part that just baffles me is that all of the various parameters that have been suggested by the list are (or least should be) the same. It's the same dsm.opt file, same disk, same processor, same NIC....etc. Only difference that I know of is of course foreground vs. background which makes me think it's a Windows issue as Wanda suggested....Just don't know where else to look at this point. I'll have to have another look at the network number. Maybe over the weekend when I can afford to let it run all day. Usually I cancel the Scheduler session and rerun interactively so we can get a current backup. Curt Magura Lockheed Martin EIS Gaithersburg, Md. 301-240-6305 -----Original Message----- From: Dirk Billerbeck [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 11:59 AM To: [EMAIL PROTECTED] Subject: Re: Background / Foreground Performance Mystery Hi Curtis, what is the value of the TCPWINDOWSIZE parameter in the dsm.opt? According to Tivoli for Windows NT it shouldn't be greater than 63 (KB). Other values aren't supported by NT and would cause the TSM client to use the default value of 32. And another thing you can look for (in the dsmsched.log): Do you have set serialization (in the backup copy groups) set to Shared Static or Shared Dynamic? If you have and there are many retries during the backup that could explain the poor backup performance. My last tip: look for the network data transfer rate of the scheduled client backup. If it is low and the network transfer time is high it could mean that you have some network problems (and not necesseraly with TSM). On the other hand a high network data transfer rate would rather indicate a local client problem. Mit freundlichen Gr��en, Met vriendelijke groeten, With best regards, Bien amicalement, CU/2, Dirk Billerbeck Dirk Billerbeck GE CompuNet Kiel Enterprise Computing Solutions Am Jaegersberg 20, 24161 Altenholz (Kiel), Germany Phone: +49 (0) 431 / 3609 - 117, Fax: +49 (0) 431 / 3609 - 190, Internet: dirk.billerbeck @ gecits-eu.com This email is confidential. If you are not the intended recipient, you must not disclose or use the information contained in it. If you have received this mail in error, please tell us immediately by return email and delete the document. [EMAIL PROTECTED]@VM.MARIST.EDU on 30.01.2002 17:31:06 Please respond to [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] To: mailbox.dekelnsm cc: Subject: Background / Foreground Performance Mystery -------------------------------------------------------------------------- We are running with the default of no per the TSM Performance and Tuning guide that I'm looking at. Curt Magura Lockheed Martin EIS Gaithersburg, Md. 301-240-6305 -----Original Message----- From: Dirk Billerbeck [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 10:06 AM To: [EMAIL PROTECTED] Subject: Re: Background / Foreground Performance Mystery Hi Curtis, do you have LARGECOMMBUFFERS set to YES in the dsm.opt? If so change it to NO and try it once again. Mit freundlichen Gr��en, Met vriendelijke groeten, With best regards, Bien amicalement, CU/2, Dirk Billerbeck Dirk Billerbeck GE CompuNet Kiel Enterprise Computing Solutions Am Jaegersberg 20, 24161 Altenholz (Kiel), Germany Phone: +49 (0) 431 / 3609 - 117, Fax: +49 (0) 431 / 3609 - 190, Internet: dirk.billerbeck @ gecits-eu.com This email is confidential. If you are not the intended recipient, you must not disclose or use the information contained in it. If you have received this mail in error, please tell us immediately by return email and delete the document. [EMAIL PROTECTED]@VM.MARIST.EDU on 30.01.2002 15:54:59 Please respond to [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject: Background / Foreground Performance Mystery -------------------------------------------------------------------------- Robin - The problem was there before we upgraded so 4.2.1.20 didn't create....unfortunately it didn't help fix it either! We did an uninstall before installing the newer version attempting to "refresh" everything. Paul - "What Resourceutilization number are you using?" That client is set to 5. Curt Magura Lockheed Martin EIS Gaithersburg, Md. 301-240-6305
