If a server only has one NID there is no ambiguity. Otherwise, lustre chooses
a NID by asking LNET what the network "distance" to
all the server's NIDs are, and picks the "best" one as follows...
1. Compare hop counts. The NID that is reached by traversing fewer routers
wins.
2. Compare rank. Find the local network that you must send on to reach the
given NID and compare the order in which the these
networks appear in the "networks" or "ip2nets" module parameter. The local
network listed first wins.
Cheers,
Eric
---------------------------------------------------
|Eric Barton Barton Software |
|9 York Gardens Tel: +44 (117) 330 1575 |
|Clifton Mobile: +44 (7909) 680 356 |
|Bristol BS8 4LL Fax: call first |
|United Kingdom E-Mail: [EMAIL PROTECTED]|
---------------------------------------------------
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> John R. Dunning
> Sent: 24 January 2007 1:30 PM
> To: [email protected]
> Subject: [Lustre-discuss] Multiple LNDs?
>
> Is there an issue around mounting multiple lustrefs's using
> different lnds?
>
> I have a situation in the not too distant future where I'm
> going to want to be
> able to mount at least two, one over socklnd, and one over a
> custom lnd. It
> occured to me that I don't know how to configure that, and
> don't know if
> there's anything in the code which will prevent it. Anybody ever done
> anything similar? Hints?
>
> Thanks in advance...
>
> _______________________________________________
> Lustre-discuss mailing list
> [email protected]
> https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
>
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