Re: Multiple disk failure - recover?

You don't say why two disks were kicked or when it happend so sdc may be out-of-whack a bit.  Sounds like sdc got kicked first.
So...I would do a bad-block scan on sdb2 so it can remap the bad section and re-build as you've been trying to do.

If you REALLY want to use sda and sdc just rebuild the array with --create and leave sdb out of it.  You shouldn't lose much data if
sdc is current.
----- Original Message -----
From: "Danilo Godec" <redacted>
To: <redacted>
Sent: Wednesday, July 10, 2002 9:10 AM
Subject: Multiple disk failure - recover?

Hi!

I have (had) a three disk RAID5 array. One of the disks (sdb2) has failed,
however, under circumstances, two of the diskes were kicked out of the
array.

I tried re-assembling the array using 'mdadm --assemble --force /dev/md1
/dev/sda2 /dev/sdc2 /dev/sdb2', but it always takes the sdc2 & sdb2 as OK
disks and sda2 as failed.

Of course, when the reconstruction hits the bad area on sdb2, it all fails
again.

How can I tell mdadm that /dev/sda2 and /dev/sdc2 are the disks I want as
'good'!?

Thanks, D.



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