[Lustre-discuss] MDT crash : group descriptors corrupted!

[Norimichi SUZUKI]

Hi Brett,

Thank you for your e-mail.

[root at mds1 ~]# fdisk -l /dev/mapper/mpath1

WARNING: GPT (GUID Partition Table) detected on '/dev/mapper/mpath1'!
The util fdisk doesn't support GPT. Use GNU Parted.


WARNING: The size of this disk is 6.0 TB (5995883397120 bytes).
DOS partition table format can not be used on drives for volumes
larger than 2.2 TB (2199023255040 bytes). Use parted(1) and GUID
partition table format (GPT).


Disk /dev/mapper/mpath1: 5995.8 GB, 5995883397120 bytes
255 heads, 63 sectors/track, 728957 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/mapper/mpath1p1 1 267350 2147483647+ ee EFI GPT


If you have any ideas please give me suggestions.

Norimichi Suzuki


(2011/05/02 21:26), Brett Worth wrote:
> On 05/02/2011 08:44 PM, Norimichi SUZUKI wrote:
>> Because of network trouble, our mds was crashed.
>> After that I can't mount mdt(/dev/mapper/mpath1p1).
>>
>> [root at mds1 ~]# mount -t lustre /dev/mapper/mpath1p1 /mds
> Is it possible that the /dev/mapper/mpath1 lun is not the one you expect it to be?  Could
> the discovery process have presented a different partition at that location?  fdisk -l
> might tell you what is what.
>
> Brett