Re: RAID-6 problem

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On Sat, 13 Oct 2012 11:45:10 -0700 Keith Keller
<kkeller@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> On 2012-10-13, Mikael Abrahamsson <swmike@xxxxxxxxx> wrote:
> >
> > Re-creating a raid5/6 with --assume-clean is for me a disaster recovery, 
> > something that should be performed when everything else fails. It's 
> > extremely unfortunate that a lot of guides bring this in very early in the 
> > fault finding process.
> 
> Actually the RAID wiki suggests exactly this path, and suggests against
> --force, contrary to the advice I've gotten here from Neil and others.
> 
> https://raid.wiki.kernel.org/index.php/RAID_Recovery#Restore_array_by_recreating_.28after_multiple_device_failure.29
> 
> I could update this, but not being expert all it'd say is "use
> --assemble --force; if it fails ask on the mailing list."  :)  Perhaps
> that's actually the best advice to give, but if there's something more
> useful to put on that page maybe someone with more expertise could
> update it?
> 
> --keith
> 


You should definitely try '--assemble --force' before trying to recreate the
array.  There is no question about that.

NeilBrown

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