On Tue, 2006-09-12 at 10:36 -0500, Matthew Benjamin wrote: > Can someone tell me why I am unable to successfully break my mirrored > drive. I am unable to find out what is making my device to busy to > break the drive. I just get the following error message when > attempting a mdadm --remove ... prior to that, I did a mdadm > --fail ... > > mdadm: hot remove failed for /dev/hdb1: Device or resource busy > You'll need to fail (--manage --fail) the drive before removing it. More-ever, If you want to destroy the RAID array, you'll need to stop the RAID device first. Gilboa