Re: Drive fails & raid6 array is not self rebuild .

On Thursday September 8, babydr@baby-dragons.com wrote:

 	When I try to do the remove I get .
root@devel-0:/ # mdadm /dev/md_d0 --remove /dev/sdao
mdadm: hot remove failed for /dev/sdao: Device or resource busy

 	I should also have 3 other drives that are spares .  I could
 	try hot remove on one of them .  See at bottom the output of
 	mdadm --misc -Q --detail /dev/md_d0
 	Which is showing no spare drives ?  And I built it with 4
 	spares

Yes... /dev/sda[pqrs] are missing.  I wonder why..

What does
   mdadm -E /dev/sda[pqrs]
show?
What happens if you then
  mdadm /dev/md_d0 -a /dev/sda[pqrs]
??

NeilBrown