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

[Lu Wang]

I remounted MDT for some reason( the clients are frozen). The it refuesed to be mounted, as showed in my first letter. 

Now I stopped the MDS server, waiting for someone could help. 

------------------				 
Lu Wang
2009-02-25

-------------------------------------------------------------
发件人：Brian Stone
发送日期：2009-02-25 04:32:03
收件人：Lu Wang
抄送：
主题：Re: [Lustre-discuss] [urgent]unable to mount MDT

Lu,

You will have to wait for some of the SUN/Lustre folks to respond. I'm
not sure what you are running into.
Were any hardware or software changes made to the configuration prior to
the problem showing up?

Brian

Lu Wang wrote:
> I use "tunefs.lustre  --erase-params --writeconf /dev/sda1"  to reconfigure the MDT
> then the partrition is mounted successfully. However, I got this on the client:
> Feb 25 03:28:17 lxslc12b kernel: LustreError: 15c-8: MGC192.168.50.32 at tcp: The configuration from log 'besfs-client' failed (-108). 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 25 03:28:17 lxslc12b kernel: LustreError: 6621:0:(llite_lib.c:1061:ll_fill_super()) Unable to process log: -108
>
>
> How can I delete the old logs?
>
> ------------------				 
> Lu Wang
> 2009-02-25
>
> -------------------------------------------------------------
> 发件人：Lu Wang
> 发送日期：2009-02-25 00:02:18
> 收件人：lustre-discuss
> 抄送：
> 主题：[urgent]unable to mount MDT
>
> 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 ?
>  				
> ------------------------------------------------------------------------
> 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                            
>
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