Degraded Enclosure and now RAID problems

Edward Ashley ned at
Fri Mar 16 06:16:31 CDT 2012

Thank you very much for both of your help. I removed the drive and re
inserted and the raid array rebuilt and everything looks good again. The
only problem now is that I still have this error:

Enclosure 0:1:0 [Backplane] on controller 0 is Degraded

Does anyone know what I need to do with this? Can I replace a backplane?
Any help much appreciated.

On 14 March 2012 12:11, Steff <steff at> wrote:

> On 14 March 2012 12:03, Mark Watts <m.watts at> wrote:
> >
> > My initial reaction would be to remove and reinsert that disk and see
> > if the array rebuilds onto it. Sometimes PERC cards do kick disks out
> > of arrays but then happily rebuild onto them and continue working for
> > years afterwards.
> > Depending on what state the disk is in you may need to initialise that
> > disk before re-adding it to the array.
> If you have something compatible and JBODish available, you can also
> plonk the suspect disk in that and ask it how it's feeling with
> smartmontools before taking a decision on reinserting it. Doing a
> RAID5 rebuild and risking provoking one of the remaining disks to
> throw a fit in the process only to discover that the rejected drive
> really was in its death throes would be really, really tiresome.
> S

Edward Ashley

Telephone: 01633 261203
Email: ned at

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