On Sun, 22 Jun 2014 16:32:31 +0200 George Duffield
[off-list ref] wrote:

Can anyone give me some hints as to why this array would remain Active
rather than report Clean?  Any help/ insights much appreciated.

It is a mystery.

On Wed, Jun 18, 2014 at 6:04 PM, George Duffield
[off-list ref] wrote:

quoted

# cat /sys/block/md0/md/safe_mode_delay returns:

0.203

changing the value to 0.500:
# echo 0.503 > /sys/block/md0/md/safe_mode_delay

makes no difference to the array state.

What if you write a smaller number?  e.g. 0.1

What does /sys/block/md0/md/array_state show?
If you "echo clean" into that file, does that "fix" it?
Does it stay fixed if you write to the array?

NeilBrown