On Mon, June 8, 2009 4:52 am, Leslie Rhorer wrote:
>
> I am trying to stop one of my arrays for maintenance, but it won't let me.
> I've un-mounted the filesystem, but I still get the following:
>
> mdadm: fail to stop array /dev/md0: Device or resource busy
>
> How do I get the array to be free so I can stop it?
>
Find out what is keeping it busy.
This is not always as easy as you might like.
You could:
lsof /dev/md0
to see if any process have it open
grep md0 /proc/mounts
to see if it is still mounted
grep md0 /proc/swaps
to see if it is in used for swap
grep md0 /proc/mdstat
to see if it is included in some other md array
ls -l /sys/block/md0/holders /sys/block/md0/*/holders
to see if dm is using it at all
grep loop /proc/partitions
to see if there are any loop devices. If there are,
one could conceivable be using it.
I cannot think off hand of anything else that might be using the
device.
NeilBrown
--
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
