Hummmmmmm.....

Were the disks successfully added to the wrong array?
Are they spares?  Or are they in-use?
What type of array is it?  Like RAID5 or RAID1.
Have you removed the disks from the wrong array?
Does your RAIDTAB have?
oersustebt-superblock	1
or
persistent-superblock 1

If the wrong array is RAID5 and the disks are not spares, then some of the
data was over-written.  If the disks were just spares, then I think only the
superblock was changed, if it had one!

I will attempt help after you answer the questions.

Guy

-----Original Message-----
From: linux-raid-owner@vger.kernel.org
[mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Terry
Sent: Friday, April 02, 2004 10:14 AM
To: linux-raid@vger.kernel.org
Subject: Re: raid 5 catastrophy

Hello,

I haven't received a response on this.  Does it not
make sense or is the answer so obvious that it doesn't
deserve an answer. :)   I appreciate any light someone
can shed on this problem.

Thanks!

--- Terry <td3201@yahoo.com> wrote:

I made a mistake on a raid 5 array.  I accidentally
tried to raidhotadd 2 of the 3 drives from the
raid
5 array into another array.  Now the two partitions
FROM the raid 5 think they are part of the other
array.  The raidtab for the array is:

raiddev			/dev/md4
raid-level		5
nr-raid-disks		3
chuck-size		64k
oersustebt-superblock	1
nr-spare-disks		0
device			/dev/hda2
raid-disk		0
device			/dev/hdb2
raid-disk		1
device			/dev/hdc2
raid-disk		2

Ultimately, the raid5 array is broken.  It won't
start
because it only has one good disk to its name right
now.  How can I fix this?  I assume the data on the
other two drives is still intact (bad assumption?)

Thanks for the help!

=====
Terry

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=====
Terry

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