Check out the TSM performance and tuning guide.  It has specific
recommendations for all of those types of values.  TCPWindowsize should be
set to 63 on Linux.

http://publib.boulder.ibm.com/infocenter/tivihelp/v1r1/index.jsp?topic=/com.ibm.itsmm.doc/sc32-9101-03.htm



______________________________
John Monahan
Senior Consultant Enterprise Solutions
Computech Resources, Inc.
Office: 952-833-0930 ext 109
Cell: 952-221-6938
http://www.computechresources.com




             Geert De Pecker
             <gedp AT SOFICO DOT BE>
             Sent by: "ADSM:                                            To
             Dist Stor                 ADSM-L AT VM.MARIST DOT EDU
             Manager"                                                   cc
             <[email protected]
             .EDU>                                                 Subject
                                       TCPWindowsize

             12/27/2005 10:00
             AM


             Please respond to
             "ADSM: Dist Stor
                 Manager"
             <[email protected]
                   .EDU>






Hi all,

We were checking the throughput on our new tsm server (5.3 on suse sles9)
and
I encountered the following in the serveroptions:

TCPWindowsize 64512

The manual states the maximum value is 2048 (which is 2mb).

Should I set it to 2048 in my dsmserv.opt or leave it as is?

Thanks,

Geert

PS: Basically, we were looking to find an answer to the intermittent disk
writes, I would
expect a streaming write instead of intermittent writes to disk.