[6.9.2 RC2 "Read SMART" spins up the same 2 disks throughout the day]

On 3/11/2021 at 5:23 PM, Calidor said:

Same problem , every Hour Smart Spin Up, it was the Mover Config. I changed from every Hour to Daily and the Smart Spin Up stopps.

I was having the same issue.  Fifteen disks all spinning up immediately after spinning them down.  I would see the following in the logs:
Jul 1 08:09:27 Tower emhttpd: spinning down /dev/sda

Jul 1 08:09:49 Tower emhttpd: spinning down /dev/sdd

Jul 1 08:09:51 Tower emhttpd: read SMART /dev/sdd

Jul 1 09:09:28 Tower emhttpd: spinning down /dev/sda

Jul 1 09:09:52 Tower emhttpd: spinning down /dev/sdd

Jul 1 09:09:54 Tower emhttpd: read SMART /dev/sdd

Jul 1 10:09:29 Tower emhttpd: spinning down /dev/sda

Jul 1 10:09:55 Tower emhttpd: spinning down /dev/sdd

Jul 1 10:09:57 Tower emhttpd: read SMART /dev/sdd

 

I would also notice about 20-40Kb/s read rate on each drive.

 

As soon as I disabled Turbo write, the issue stopped.  Read rate is now 0B/s, and drives stay spun down.