I would make sure whatever speed and duplex setting you have the nic set to, 
you should set the switch port to match.  I would try to avoid setting both to 
autonegotiate, as I have personally seen horrible performance with that 
setting.  Also, run diags on network interfaces to rule out any hardware 
problems.  Are u using a seperate nic for your tivoli backups or are u using 
just one nic for all network communication on these servers?
------Original Message------
From: Timothy Hughes
To: ADSM-L
ReplyTo: ADSM-L
Sent: Mar 22, 2007 3:33 PM
Subject: [ADSM-L] Wiindows 2000 and 2003 servers backups very poor performance

Hello,


We have about 5 or 6 Windows Servers whose backups performance is very
very poor these
backups start a midnight and run throughout the whole day and sometimes
run for a couple days
I have been reading different options including the DISKBuffsize
option,  I know poor networking
performance can be caused by a number of factors and not sure which
parameter to look at first.

Here is an example of one of the clients dsm.opt file, They all
basically look the same and
the parameters matches TSM windows clients recommendations.


Lang Ameng
Domain ALL-LOCAL
TCPSERVERADDRESS  xxxx.xxx.xxxxx.xx.xx
Passwordaccess generate
TCPCLIENTADDRESS  xx.xx.xxx.xx
NODENAME xxxx
SUBDIR YES
REPLACE PROMPT
TCPB 32
TCPW 63
SCHEDMODE PROMPTED
TXNBYTELIMIT 25600
ERRORLOGNAME
SCHEDLOGNAME
ERRORLOGRETENTION 14
SCHEDLOGRETENTION 7
TCPNODELAY YES
RESOURCEUTILIZATION 3
LARGECOMMBUFFERS YES
CHANGINGRETRIES 2
COMPRESSION
BACKUPREG YES
MANAGEDSERVICES WEBCLIENT SCHEDULE



Windows 2000 and 2003 servers
TSM server 5.3.4
TSM client 5.3.4