Re: DB2 high speed SP switch backups dead slow

** High Priority **

Hi Travis,
bunch of thanks for ur kind responce .Yesterday changed couple of parameter in 
sys file at client and I could finish my backup 3 hrs which is 14 before.i 
could'nt belive that.
still I need tune few things in tcp/ip and high speed switch.


thanks again.

best regards
/muthyam



>>> Travis Zong <tzong AT sears DOT ca> 09/15/03 11:22AM >>>



Muthyam,

We got the same problem since our TSM migrated to 5.1.5. After one month's
work, I made the following changes on TSM DB2 Client, and fixed the problem. I
think TCPWINDOWSIZE is the critical factor. Both server and clients were 2048
in our environment. Good luck!!

Travis

FROM:
LARGECOMMBUFFERS        YES
TCPWINDOWSIZE           2048
TCPBUFFSIZE             64

TO:
LARGECOMMBUFFERS        NO
TCPWINDOWSIZE           128
TCPBUFFSIZE             32
TCPNODELAY              YES


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