RAID failure already!!!!!

James Pifer jep at obrien-pifer.com
Thu Nov 16 17:11:31 UTC 2006


> > i think you need something like
> > 
> >       mdadm --assemble /dev/md0 /dev/hdb /dev/hdc
> > 
> > you should then be able to add the third device using "mdadm --manage"
> >  (it's unclear if you need to "start" the array before doing this).
> > 
> 
> Yeah, tried that. It tries for a few seconds, then I get:
> [root at storage ~]# mdadm --assemble /dev/md0 /dev/hdb /dev/hdc
> mdadm: /dev/md0 assembled from 1 drive - not enough to start the array.
> 
> If I cat /proc/mdstat
> [root at storage ~]# cat /proc/mdstat
> Personalities :
> md0 : inactive hdc[1] hdb[0]
>       312581632 blocks super non-persistent
> 
> unused devices: <none>


Any other suggestions here? Is there any way to determine 100% that I
have no chance at getting to any of the data? It would be nice to get to
some of it. It seems as though hdb and hdc are acting ok right now. I
don't know if the reference to "dev/hdd" is causing issues or not. Is
hdb marked "failed" somehow? If so, is there a way to modify it to not
be failed so I can try and bring up the array?

Sorry, just don't want to give up unless there's absolutely no hope. 

Thanks,
James




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