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List: lustre-discuss
Subject: [lustre-discuss] Problems on mds/mgs
From: rmohr () utk ! edu (Mohr Jr, Richard Frank (Rick Mohr))
Date: 2015-04-22 20:04:05
Message-ID: EDBEEF23-15A7-47EB-A897-0E7417559F3A () utk ! edu
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(Re-added lustre-discuss to CC list)
> On Apr 22, 2015, at 9:04 AM, Sven Schumacher <schumacher at tfd.uni-hannover.de> wrote:
>
> Hi Rick,
>
> thanks for your answer.
> when I try to mount the osts without having mounted the mgs/mds,
> I get on the oss:
>> root at oss1:~# mount -t lustre /dev/vg_ost0/ost0 /lustre/ost0
>> mount.lustre: set /sys/block/dm-5/queue/max_sectors_kb to 127
>>
>> mount.lustre: set /sys/block/dm-2/queue/max_sectors_kb to 127
>>
>> mount.lustre: set /sys/block/dm-0/queue/max_sectors_kb to 127
>>
>> mount.lustre: set /sys/block/sdc/queue/max_sectors_kb to 32767
>>
>> mount.lustre: set /sys/block/sde/queue/max_sectors_kb to 32767
>>
>> mount.lustre: set /sys/block/sdg/queue/max_sectors_kb to 32767
>>
>> mount.lustre: set /sys/block/sdi/queue/max_sectors_kb to 32767
>>
>> mount.lustre: mount /dev/mapper/vg_ost0-ost0 at /lustre/ost0 failed:
>> Input/output error
>> Is the MGS running?
>>
> Anyone else any hint?
You need to mount both the MDT/MGT and the OST.
--
Rick Mohr
Senior HPC System Administrator
National Institute for Computational Sciences
http://www.nics.tennessee.edu
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