Single, dual or quad Gigabit?

Mark Watts m.watts at eris.qinetiq.com
Wed May 26 03:20:01 CDT 2004


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> I want to put an Intel PCI-X Gigabit card into a Dell 2650 NFS server
>  to get some serious bandwidth out. (replacing the onboard Broadcom
> rubbish)
>
> Should I put a Dual or even Quad port card in and bond them
>  or would I get almost as much bandwidth with a single port card?
>
> The cards I'd be choosing between would be:
>
> 	Intel pro/1000 XT	single port
> 	Intel pro/1000 MT	dual port
> 	Intel pro/1000 MT	quad port

PCI-X only has so much bandwidth (I forget exactly how much). If you stuff too 
many nic's in there, you'll hit that limit and physically not be able to go 
any faster. a Quad card would certainly be too much.

If you want to bond them to get the full bandwidth of all of them, you need a 
switch capable of EtherChannel trunks (Dell managed switches can do this)

Mark.

- -- 
Mark Watts
Senior Systems Engineer
QinetiQ Trusted Information Management
Trusted Solutions and Services group
GPG Public Key ID: 455420ED

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