[Lustre-discuss] Lustre FS in Infiniband - client mount problem

[Wang Yibin]

As the error message said, the lustre modules probably were not loaded when you were trying to mount lustre client.

Please provide information - specifically, the loaded modules and more dmesg log.

在 2010-11-4，上午2:30， ren yufei 写道：

> Dear all,
> 
> I have setup some nodes (include MDT/MGS/OSS/Client) with Mellanox 40G RNIC connected via Mellanox MTS3600 switch, and deployed lustre FS in this cluster. The MDT/MGS node and OSS nodes works but client could not mount on this FS. The error information is as follows.
> 
> Client: 192.168.1.23
> MDS: 192.168.1.11
> 
> -- error information
> Client # mount -t lustre 192.168.1.11 at o2ib0:/lustre /mnt/lustre
> mount.lustre: mount 192.168.1.11 at o2ib0:/lustre at /mnt/lustre failed: No such device
> Are the lustre modules loaded?
> Check /etc/modprobe.conf and /proc/filesystems
> Note 'alias lustre llite' should be removed from modprobe.conf
> 
> Client # ls -l /mnt/lustre
> total 0
> 
> Client # dmesg | tail
> LustreError: 165-2: Nothing registered for client mount! Is the 'lustre' module loaded?
> LustreError: 5116:0:(obd_mount.c:2045:lustre_fill_super()) Unable to mount  (-19)
> 
> -- environment information.
> 
> Client:
> # lctl list_nids
> 192.168.1.23 at o2ib
> # lctl ping 192.168.1.11 at o2ib0
> 12345-0 at lo
> 12345-192.168.1.11 at o2ib
> 
> MDS:
> # lctl list_nids
> 192.168.1.11 at o2ib
> 
> lctl > device_list
>   0 UP mgs MGS MGS 13
>   1 UP mgc MGC192.168.1.11 at o2ib bb9cf87d-fd14-b679-85ce-f0fa1a866aff 5
>   2 UP mdt MDS MDS_uuid 3
>   3 UP lov lustre-mdtlov lustre-mdtlov_UUID 4
>   4 UP mds lustre-MDT0000 lustre-MDT0000_UUID 3
>   5 UP osc lustre-OST0000-osc lustre-mdtlov_UUID 5
>   6 UP osc lustre-OST0001-osc lustre-mdtlov_UUID 5
> ...
> 
> By the way, All these nodes could connect or access to each other via ping/iperf(TCP)/ibv_rc_pingpong/ibv_ud_pingpong/ib_write_lat. However, the 'rping' client, based on librdmacm, could not connect to the server side. error is:
> 
> # rping -c 192.168.1.11
> cq completion failed status 5
> wait for CONNECTED state 10
> connect error -1
> cma event RDMA_CM_EVENT_REJECTED, error 8
> 
> 
> Thank you very much.
> 
> Yufei
> 
> 
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