Hey Guys,

 

I'm getting ready to upgrade my server and along with this upgrade I had
planned on implementing sun trunking and just having one big(4Gb) pipe
on the same IP that I use now.  Well, after having a long discussion
with the networking guys here, because our core links are only 1Gb I
would be better of having the separate NICs on separate switches and
separate subnets.

 

Our data center is setup like below.

 

2 Cisco 6509 connected to 2 Cisco routers(not sure what model) via 1Gb
pipes.

Our servers mostly use 3 subnets x.x.158.x, x.x.200.x and x.x.201.x.

So in a perfect world I would get the best network performance if I had
6 NICs 1 on each subnet on each switch.  That would keep the amount of
traffic that has to cross the shared 1Gb pipe way down.

I have a V880 8x1.2Mhz 16GB Memory, so I have the physical ability to do
this.

 

My question is:  Is networker able to take advantage of a configuration
like this?  I would set it up like below.

 

In switch1: tapelib=x.x.158.x(main server NIC),
tapelib1=x.x.200.x,tapelib2=x.x.201.x

In switch2: tapelib3=x.x.158.x, tapelib4=x.x.200.x,tapelib5=x.x.201.x

 

On a client plugged into switch1 on the 200 vlan I would put "tapelib1"
in the "Server network interface" field.

On a client plugged into switch2 on the 200 vlan I would put "tapelib4"
in the "Server network interface" field.

 

>From what I've found in the archive, at least the initial connect will
also use the 158 NIC in switch1(no problem).  My concern is that it'll
try to use both of the 200 NICs instead of the one I designate.  Does
anyone have a similar setup that is functioning correctly?  This would
complicate my backup configuration a bit, but I think the potential
performance gains are quite high.

 

Thanks,

 

Joel Fisher

 


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