Re: Help: Re-assemble raid-5 with inconsistent events.

[Bill Davidsen <davidsen@tmr.com>]

Arthur Britto wrote:
> Hi,
>
> I have a RAID 5 with 6 components.  The 4-port SATA controller died and
> left the RAID in an inconsistent state.  2 of the 6 components have a
> more recent event stamp than the others. 
>
> What command should I issue to re-assemble the RAID?
>
> In particular, I don't want to force the RAID to be assembled with the
> components in the wrong order.  Especially as the order given
> by /dev/sd?? does not match the component order.
>
> Thanks in advance,
>   
Might I suggest that you
- back up your mdadm.conf file
- replace the list of components in the ARRAY description with the UUID 
of the array
- change configure to use PARTITIONS and try them all
- try the assemble with mdadm figuring out what goes where

Your chances of getting something drastically wrong are lower. You may 
have to use --force to get the assembly, and should run fsck *with the 
-n option* first to see what you have.

-- 
Bill Davidsen <davidsen@tmr.com>
  "Woe unto the statesman who makes war without a reason that will still
  be valid when the war is over..." Otto von Bismark