Re: Device Unusable At Startup

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On Sun, 12 Aug 2012 16:59:25 -0700 Jake Thomas <thomasj10@xxxxxxxxxxxxx>
wrote:

> sudo mdadm --create /dev/answers --level=1 --raid-devices=2
> /dev/blog,/dev/linux-raid@xxxxxxxxxxxxxxx

;-)

> 
> Thanks for the responses Neil!
> 
>    I did try the following kernel parameter:
> 
> md-mod.start_dirty_degraded=1
> 
>    Does my kernel simply not honor that parameter? I'll try and look
> into my initial ramdisk and see some of these scripts you're talking
> about.

That parameter is for a different issue.  Starting a RAID5 or RAID6 when it
is dirty and degraded can cause data loss, so it is not done by default.

In your situation the array is not dirty and it isn't RAID5 or RAID6, so that
doesn't apply.

NeilBrown

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