[ofa-general] Cannot export multiple directories using nfs-rdma

[Tom Tucker]

Jeff Johnson wrote:
> I have a nfs-rdma configuration using Mellanox ConnectX-DDR, ofed-1.4.2 
> on Centos 5.3 x86_64.
> My ConnectX cards are running 2.5.0 firmware as I have read that 2.6.0 
> had rdma issues. I saw these issues and down rev'd the cards to 2.5.0.
> 
> I am seeing a peculiar behavior where if I export two separate 
> directories from the server and attempt to mount them separately from a 
> client I end up with the same export mounted to two different client 
> directories.
> 

Hi Jeff:

The mount service does not run over RDMA, it only runs on TCP/UDP. I 
believe you should be able to reproduce this behavior on plain old 
GigE/IPoIB.

Is this the case?

Tom


> e.g.:        server:/raid1
>         server:/raid2
> 
>         'mount.rnfs 10.0.0.251:/raid1 /raid1 -i -o rdma,port=2050'    
> client:/raid1   <---has server:/raid1 contents
>         'mount.rnfs 10.0.0.251:/raid2 /raid2 -i -o rdma,port=2050'    
> client:/raid2   <---has server:/raid1 contents
> 
>     I have tried creating multiple rdma ports on the server (2050 and 
> 2051) and then using different ports for each separate mount. The result 
> is the same.
> 
>     I have verified that I am indeed mounting rdma and not merely ipoib.
> 
>     Is nfs-rdma capable of multiple exports? If so, I cannot find a 
> method for dealing with multiple exports from the server or client side 
> in any ofed docs.
> 
> Thanks for any assistance..
> 
> ------------------------------
> Jeff Johnson
> Manager
> Aeon Computing
> 
> jeff.johnson at aeoncomputing.com
> t: 858-412-3810   f: 858-412-3845
> m: 619-204-9061
> 
> 4905 Morena Boulevard, Suite 1313 - San Diego, CA 92117
> 
> 
> 
> 
> 
> 
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