Re: dead RAID6 array on CentOS6.6 / kernel 3.19

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Hi Adam,

On 02/10/2015 08:53 PM, Adam Thompson wrote:
> So, I was doing some work on the new server tonight, stopping/starting
> NFS caused a kernel panic, and I thought rebooting would be a good
> idea... Apparently not!

> Sure enough, no array.
>> [root@muug ~]# cat /proc/mdstat
>> Personalities : [raid1] [raid6] [raid5] [raid4] [raid10]
>> md0 : active raid1 sdm1[0] sdn1[1]
>>       1048512 blocks super 1.0 [2/2] [UU]
>>       bitmap: 0/1 pages [0KB], 65536KB chunk
>>
>> md127 : inactive sdk[10] sdj[9] sdi[8] sdl[12]
>>       15627550048 blocks super 1.2
>>
>> unused devices: <none>

Not really no array -- this remnant is inactive.  On older kernel /
mdadm combinations, you have to --stop the inactive array before you try
again.  Please add --verbose to your --assemble --force

If that doesn't work, use a bootable thumb drive with current kernel and
mdadm and --assemble --force again.

Phil
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