[Lustre-discuss] [urgent]unable to mount MDT

[Lu Wang]

Dear list,
        I got this error when I was trying to mount our MDT, which shares the same partrition with MGS.
        [root at mds01 lustre]#  mount -t lustre -L besfs-MDT0000 /lustre/besfs/mdt
mount.lustre: mount /dev/sda1 at /lustre/besfs/mdt failed: Invalid argument
This may have multiple causes.
Are the mount options correct?
Check the syslog for more info.


Feb 24 23:52:19 mds01 kernel: LustreError: 31701:0:(obd_config.c:1071:class_config_llog_handler()) Err -22 on cfg command:
Feb 24 23:52:19 mds01 kernel: Lustre:    cmd=cf00f 0:besfs-MDT0000  1:mdt.nosquash_lnets=192.168.50[0-255]@tcp
Feb 24 23:52:19 mds01 kernel: LustreError: 15b-f: MGC192.168.50.32 at tcp: The configuration from log 'besfs-MDT0000' failed (-22). Make sure this client and the MGS are running compatible versions of Lustre.
Feb 24 23:52:19 mds01 kernel: LustreError: 15c-8: MGC192.168.50.32 at tcp: The configuration from log 'besfs-MDT0000' failed (-22). This may be the result of communication errors between this node and the MGS, a bad configuration, or other errors. See the syslog for more information.
Feb 24 23:52:19 mds01 kernel: LustreError: 31701:0:(obd_mount.c:1091:server_start_targets()) failed to start server besfs-MDT0000: -22
Feb 24 23:52:19 mds01 kernel: LustreError: 31701:0:(obd_mount.c:1597:server_fill_super()) Unable to start targets: -22
Feb 24 23:52:19 mds01 kernel: Lustre: Failing over besfs-MDT0000

There is nothing in /proc/fs/MGS /proc/fs/MDT, what can I do ?
 				
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Lu WANG                                          
PhD student, Computing Center，IHEP              Tel: (+86) 10 8823 6012 ext 607
P.O. Box 918-7                                   Email: wanglu at ihep.ac.cn
Beijing 100049，China