Re: Why this activity on mounted but unused fs?

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On Sun, 2018-11-04 at 17:32 +1100, Eyal Lebedinsky wrote:
> On 4/11/18 4:44 pm, Samuel Sieb wrote:
> > On 11/3/18 10:19 PM, Eyal Lebedinsky wrote:
> > > What is this io, and can it be stopped? I want to allow the disks
> > > to enter
> > > low power mode (not spin down) when idle.
> > 
> > I'm assuming since it's a new RAID that you haven't created files
> > on it yet, or at least not many.  Try running "lsof +D /mnt/point"
> > to see if there is any process looking at it.  Then try running
> > "inotifywait -rm /mnt/point" and let it run for a little while to
> > see if you can catch some process accessing the fs.  You will need
> > to install "inotify-tools" to get that program.
> 
> Sure, should have said a bit more: The array was resync'ed, then
> (much) data was copied in. This was a few days ago.

Did the sync finish?  What is the kernel status of the array?
cat /proc/mdstat
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