[Lustre-discuss] IB storage as an OST target

[David Dillow]

On Thu, 2011-03-31 at 02:17 -0700, Andrus, Brian Contractor wrote:
> Brian
> 
> We do that here at NPS without much trouble - anymore ;)
> 
> One thing to watch: if you are using opensm for your subnet manager and
> the latest kernels for lustre (1.8.4/5 or 2.0) you need a newer opensm
> than is on the CentOS 5.5 disks. Get the one from the updates. It seems
> there was a change in the ibsrp kernel module that made it incompatible
> with opensm on the same disk.

Actually, IIRC, the issue with that opensm version is that it improperly
includes an extra field in the path records which confuses most SRP
targets on the market -- they think the initiator is coming from LID
0xffff, which is illegal. It doesn't matter which SRP initiator version
you use.

We had a fun time tracking that down as well...
-- 
Dave Dillow
National Center for Computational Science
Oak Ridge National Laboratory
(865) 241-6602 office