[Lustre-discuss] Unable to mount OSTs

[Wang Yibin]

This error sounds like that there is some unrecognized parameter(s) on your OSTs.
Please check your OST parameters. 
You hit this issue mostly because we have some fix disallowing unrecognized parameters (22386).

在 2010-12-16，下午3:56， Andrus, Brian Contractor 写道：

> Well e2fsck didn't help. Same error for those two (Function not
> implemented).
> I also see in the MGS/MDS log each time I try:
> LustreError: 5974:0:(mgs_handler.c:487:mgs_handle_target_reg()) Failed
> to write nscratch-OST0001 log (-38)
> LustreError: 5973:0:(mgs_handler.c:487:mgs_handle_target_reg()) Failed
> to write nscratch-OST0002 log (-38)
> 
> 
> 
> Brian Andrus
> 
> -----Original Message-----
> From: lustre-discuss-bounces at lists.lustre.org
> [mailto:lustre-discuss-bounces at lists.lustre.org] On Behalf Of Andrus,
> Brian Contractor
> Sent: Wednesday, December 15, 2010 11:48 PM
> To: Andreas Dilger
> Cc: lustre-discuss at lists.lustre.org
> Subject: Re: [Lustre-discuss] Unable to mount OSTs
> 
> I actually did run writeconf on the MGS/MDS as well. 
> I just did it again to test.
> 
> Followed the instructions in section 4.3.11 in the luster manual.
> Mounting MDT goes fine.
> Mounting the OSTs, the first just seems to be hanging. The other two
> both gave:
> [root at ost2 ~]# mount -t lustre /dev/VG_lustre/scratch_ost2
> /mnt/lustre/scratch/ost2/
> mount.lustre: mount /dev/VG_lustre/scratch_ost2 at
> /mnt/lustre/scratch/ost2 failed: Function not implemented
> 
> Currently running e2fsck on the two OSTs that didn't want to mount. I
> have already run it, but doing so again, just in case.
> 
> Brian Andrus
> 
> -----Original Message-----
> From: Andreas Dilger [mailto:andreas.dilger at oracle.com] 
> Sent: Wednesday, December 15, 2010 10:55 PM
> To: Andrus, Brian Contractor
> Cc: lustre-discuss at lists.lustre.org
> Subject: Re: [Lustre-discuss] Unable to mount OSTs
> 
> On 2010-12-15, at 22:50, Andrus, Brian Contractor wrote:
>> I did change IPs of the NID for 2 or our lustre filesystems.
>> Made appropriate changes to each ost. One thing I did that I probably
> shouldn't have was doing a --writeconf on the OSTs. Now I see:
>> 
>> Flags:      0x142
>>              (OST update writeconf )
>> and I cannot mount them. I get:
>> 
>> mount.lustre: mount /dev/VG_lustre/scratch_ost1 at
> /mnt/lustre/scratch/ost1 failed: Function not implemented
>> however I do seem to be able to mount the OSTs that I didn't do
> --writeconf on.
> 
> You can binary edit this flag in the "CONFIGS/mountdata" file on each
> OST.
> Alternately, you could follow the process in the manual, and run
> writeconf on the MGS and MDS as well, and then the OSTs should be able
> to register again.
> 
>> I see in syslog:
>> LustreError: 6182:0:(obd_mount.c:1097:server_start_targets()) Required
> registration failed for nscratch-OST0001: -38
> 
> Cheers, Andreas
> --
> Andreas Dilger
> Lustre Technical Lead
> Oracle Corporation Canada Inc.
> 
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