[Lustre-discuss] multihomed OST's configuration

[mdavid]

hi Brian
I was "mislead" by what it says in the ops manual, 12.1 chapter

Lustre can use multiple NICs without bonding. There is a difference in
performance when Lustre uses multiple NICs versus when it uses bonding
NICs.

though here it says "multiple NICS" not multihomed configurations.

Anyway I still don't know how to configure "multiple NICS" both from
the point of view of the OS and Lustre
note all the ethXX are in the same LAN, and connected to the same card
in the switch
if on the Lustre OST's I put
options lnet networks=tcp(eth0,eth1,eth2,eth3)

how is it configured each ethX
in principle I would have a single IP for the server

cheers

Mario David

On Jul 8, 1:25 pm, "Brian J. Murrell" <Brian.Murr... at Sun.COM> wrote:
> On Mon, 2008-07-07 at 03:13 -0700, mdavid wrote:
> > hi list
> > I am a new to lustre (1 week old) and this list.
> > I have some Dell PE1950 servers with MD1000 enclosures (scientific
> > linux 5 == RHEL5 x86_54) on them and lustre 1.6.5, with lustre patched
> > kernels on them
>
> > on a first try (indeed it was the second), I managed to have a lustre
> > up and running OK, now
>
> > each dell server has 4 times 1Gb interfaces, and I want to take profit
> > from them all
> > either I try bonding them, or go for multihomed (which is my first
> > try)
>
> If what you want is to get the bandwidth of all 4 interfaces to the
> Lustre servers then you really do want bonding.
>
> Can you explain why you think you want multihoming vs. bonding?  Maybe
> I'm misunderstanding your goal.
>
> b.
>
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