[Lustre-discuss] problem with clients and multiple transports

[John White]

Yes, all OSTs and MDTs were formatted with a full compliment of transports.
----------------
John White
HPC Systems Engineer
(510) 486-7307
One Cyclotron Rd, MS: 50C-3396
Lawrence Berkeley National Lab
Berkeley, CA 94720

On Nov 2, 2011, at 7:11 PM, David Dillow wrote:

> On Wed, 2011-11-02 at 08:55 -0700, John White wrote:
>> Hello Folks,
>> 	I'm having a problem pinning a given FS to a given transport type.  I
>> have 2 file systems hosted on the OSS/MDS side by an ib and tcp nid
>> (each) being mounted by a client specifying the appropriate transport
>> for each of the file systems (one over tcp and one over o2ib).  I can
>> not mount o2ib.  Period.  If my client's modprobe.conf lists o2ib
>> before the tcp nid, any o2ib mount request fails.  If the
>> modprobe.conf has tcp first, both mount requests will mount via tcp0,
>> no matter how the mount request is crafted.  
> 
> Were both tcp and o2ib LNETs present when you built the filesystem? If
> not, try performing a 'tunefs.lustre --writeconf ...' on each of the
> servers with LNET started but the servers unmounted.
> -- 
> Dave Dillow
> National Center for Computational Science
> Oak Ridge National Laboratory
> (865) 241-6602 office
>