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>>--> 05-31-07  11:34  S.SHEPPARD     (SHS)    Slow Z/OS online

If your TSM server is running at a lower priority, then the problem is
the TCPIP address space.  During heavy backup processing we see TCPIP
consuming a lot of CPU and it must run at a high priority to keep other
work going.  A separate stack running at a lower priority would probably
be a good solution.

Sam Sheppard
Senior Technical Specialist
San Diego Data Processing Corp.
(858)-581-9668
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>>--> 05-31-07  06:12  ..NETMAIL     (001)     [ADSM-L] Slow Z/OS online
Date: Thu, 31 May 2007 09:08:57 -0400
From: "Tim Brown" <tbrown AT CENHUD DOT COM>
Subject: [ADSM-L] Slow Z/OS online response during TSM backups to TSM
To: ADSM-L AT VM.MARIST DOT EDU
_________________________________Top_of_Message_________________________________

Has anyone had experience with TSM backups to a TSM server on Z/OS.=20
During the backup window the user online access is significantly slower.
Also the TSM address space takes a large percentage of the cpu.

Would a dedicated TCP/IP address stack for TSM help
WLM tuning, not an expert, the dispatching priority of TSM is lower then =
the online and database address spaces

Suggestions !!

I am looking to migrate TSM server off of the mainframe but that wont be =
for awhile.

Tim Brown
Systems Specialist - Project Leader
Central Hudson Gas & Electric
284 South Ave
Poughkeepsie, NY 12601
Email: tbrown AT cenhud DOT com
Phone: 845-486-5643
Fax: 845-486-5921
Cell: 845-235-4255=20

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