If the NICs are on the same network/netmask, you're out of luck -- by
definition, TCP/IP will use just one of them. This will be the lowest
number, and I don't remember if it's the IP address or the MAC address it
looks at for 'low number'.

OTOH, if these are different networks -- set your dsm.opt to reference a
server stanza in the dsm.sys with a tcpserveraddress to match the TSM server
GIG-E nic.

In my environment, I have four separate networks: public (global company
network); private (local computer room RS/6000s only); backup1 and backup2
(two separate gig-e cards in my tsm server and main sap server; several
other boxes have gig or 10/100 cards for backup1). The public is a 10.8.x.x
(netmask 255.255.0.0) and the others are 192.168.x.x (netmask
255.255.255.0). The dsm.sys has a server stanza for each, using DNS CNAMEs
for the network addresses, so we can play games at D/R where the hardware
config doesn't match our local config.

You should be able to see which card is in use by running netstat -i at both
ends while a backup is in process.

Tom Kauffman
NIBCO, Inc

-----Original Message-----
From: Wholey, Joseph (IDS DM&DS) [mailto:JWholey AT EXCHANGE.ML DOT COM]
Sent: Wednesday, April 30, 2003 10:03 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: GIGE NIC


Situation:  have a GIGE card in one of my client nodes (SUN 5.8) running TSM
client v 4,2,1.0 backing put to TSM server v 4,2,2.9.  Running across a GIGE
network.  This client has multiple NICs, but only one GIGE NIC.  In the
client dsm.sys file, I've set TCPCLIENTADDRESS to the IP of the NIC, and
TCPCLIENTPORT to 1500.

When TSM server initiates the daily backup, how does it know to connect and
transfer data over the GIGE NIC and not the 10/100 NICS? How is the path up
to the TSM server determined?  Can I be "coming off" the GIGE network on my
way up to the server, hence reducing my thruput?

Any suggestions would be greatly appreciated.

Regards, Joe