Hi Brian
Assuming AIX 5.1 or better, there is etherchannel available as Zlatko has said.
We had trouble making this work - something to do with the capabilities of the
switch we were using.
Another possibility is virtual IP addresses, new with AIX 5.1, which can be
bound to the same or different adapters as required. Again we had trouble with
this in our case because of the switches capabilities.
In the end we went with the good old ip alias.
HTH
Steve.
Steve Harris
AIX and TSM Admin
Queensland Health, Brisbane Australia.
>>> acit AT ATTGLOBAL DOT NET 16/06/2003 3:51:30 >>>
Best approach (IMO) is to create EtherChannel. Thus the load balancing
will be automatic. 1/2 of the nodes does not mean always 1/2 of the data
flow.
Two cards on same IP subnet can accept connections simultaneously on two
addresses but the outbound traffic will be routed only through one of
them.
Two cards on different IPs also will be harder for auto-failover without
current sessions' termination.
Zlatko Krastev
IT Consultant
"Brian L. Nick" <BRIAN.NICK AT PHOENIXWM DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
13.06.2003 19:55
Please respond to "ADSM: Dist Stor Manager"
To: ADSM-L AT VM.MARIST DOT EDU
cc:
Subject: Moving from OS/390 to AIX network questions.
Good afternoon,
Well we have finally made the jump. We will be moving our TSM server off
of OS/390 to AIX in the near future. My question has to do with network
connectivity and redundancy.
In our new TSM environment we will be using 2 GIG connections into our
network to a single TSM image and ideally we like to have TSM balance
backup load over each card. What we are looking for is away to build
redundancy. We would like to put 1/2 of out clients on one gig card (TSMA)
and the other 1/2 on the second card (TSMB). Now ideally if TSMA were to
fail we would like to get all of the clients using that card to
automatically begin to use the TSMB card and visa-versa.
Our network group thinks that this can be done but I was wondering if
anyone is currently doing something like this and if so a brief
description
of how.
Brian L. Nick
Systems Technician - Storage Solutions
The Phoenix Companies Inc.
100 Bright Meadow Blvd
Enfield CT. 06082-1900
E-MAIL: Brian.Nick AT phoenixwm DOT com
PHONE: (860)403-2281
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