Worked!! Re: recreate superblock? (was Re: mdadm: failed to RUN_ARRAY)

[Sharif Islam <mislam@uiuc.edu>]

Thanks. This worked. I am back with degraded mode.

 mdadm --create --verbose /dev/md5 --level=5 --chunk=128 
--raid-devices=6 /dev/hde1 /dev/hdf1 /dev/hdg1 /dev/hdh1 /dev/hdi1 missing

Sharif Islam wrote:

> Mike Tran wrote:
>
>> Hi Sharif,
>>
>>> From the kernel log, I believe that the raid5 array now has 4 working
>>
>> disks out of 6 raid disks.  My suggestion is to recreate the array.
>>
>> Before recreating the MD array, I would suggest that you run mdadm
>> --examine /dev/hdxx (i.e. hde1, hdf1 or hdg1) and write down the
>> information of the original array setup.
>> Some of the important Raid5 info are : Raid Devices, Total Devices,
>> Preferred Minor (/dev/mdx), Spare Devices, Layout, Chunk Size, order of
>> devices.
>> When you **decide** to use mdadm -C to recreate array, mdadm will ask
>> you to confirm on overwriting existing md superblock.
>>  
>>
> Thanks for your response. Will it delete the existing the data on the 
> RAID?
>
> -Sharif
>
> -
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