I had a problem with my RAID array last night where a couple of my drives just disappeared. I went and unplugged and re-plugged in all the drives and now they show up. I had to do a "mdadm --create" to get the drives back in the array for some reason. In any event, the array now shows up in the web admin as "OK" with 4 drives. The problem now is that the XFS file system seems borked. I get I/O errors when I try to write to the array, but it reads fine. It appears I need to unmount the RAID array and run xfs_repair, but when I do a "umount -f /mnt/device/163" it appears that the array is still mounted. Is LinuxMCE remounting the array after a umount? If so, how do I umount it so I can run xfs_repair?