On Sun, 24 Apr 2011 12:57:56 +0100 John Robinson <john.robinson@xxxxxxxxxxxxxxxx> wrote: > On 24/04/2011 09:41, NeilBrown wrote: > > On Sun, 24 Apr 2011 01:06:52 -0600 John Valarti<mdadmuser@xxxxxxxxx> wrote: > [...] > >> Here you go. I warn you it is a bit long! > > > > Thanks. Length is no problem. > > > > Only it doesn't make sense at all. I cannot see how mdadm would possibly be > > generating just those messages. > > It appear to be rejecting each device for some reason, but it not reporting > > why it is rejecting the device... > > > > What version of mdadm is this? > > mdadm --version > > > > I should have asked that before. > > I think John said 2.6.9 Ahh, I see it. This is a bug in there: ->used isn't set to zero after 'dv' is allocated. This was fixed in 3.0. I don't remember that bug... I cannot see any easy way to work around that bug. You could possibly: echo DEV /dev/sd[abc]2 > /tmp/mdadm.conf mdadm -Eb /dev/sda2 >> /tmp/mdadm.conf mdadm -Afvv /dev/md1 -c /tmp/mdadm.conf I think that would work - but no promises. on the CentOS 5.5 rescue media. I think it's > time to try something more recent: John, could you try SystemRescueCD > from http://www.sysresccd.org/ and run > mdadm -Evvs > and if that shows your RAID5 members again, > mdadm -Afvv /dev/md1 Getting a newer mdadm is definitely a good idea. Safest to explicitly list the devices that you want mdadm -Afvv /dev/md1 /dev/sd[abc]2 NeilBrown > > Cheers, > > John. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html