On Sun, 22 Jun 2014 16:32:31 +0200 George Duffield
<forumscollective@gmail.com> 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
> <forumscollective@gmail.com> wrote:
> > # 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