Hi Ken,
On 11/22/2011 07:47 PM, NeilBrown wrote:
> On Tue, 22 Nov 2011 18:05:21 -0600 Kenneth Emerson
[...]
> Assuming nothing has changed since the "--detail" output you provided, you
> should:
>
> mdadm -S /dev/md3
> mdadm -C /dev/md3 --metadata=1.0 --chunk=64k --level=6 --raid-devices=5 \
> missing /dev/sdb4 /dev/sdc4 /dev/sda4 /dev/sdd4 \
> --assume-clean
>
> The order of the disks is import. You should compare it with the output
> of "mdadm --detail" before you start to ensure that it is correct and I have
> made any typos. You should of course check the rest as well.
> After doing this (and possibly before) you should 'fsck' to ensure the
> transition was successful. If anything goes wrong, ask before risking
> further breakage.
A word of warning... the shell notation /dev/sd[bcad]4, which you might be
tempted to type in the above command line, *will* *not* *work*. Bash reorders
the [bcad] to [abcd], dropping nonexistent names. You might know this, and
not be burned, but others on the list have been. Use {b,c,a,d} to stay safe.
HTH,
Phil
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