I've been trying to figure out why my disks don't spin down after the set time period of 1 hour. After some research and investigation I discovered that I had appdata/domains and system setup to run off cache as primary and the array as secondary - so it seemed that's why the disks never spun down (admittedly it still didnt' explain why the 4 disks with nothing on them, never spun down either).

So I moved appdata/domains/system to cache and then set them to ONLY use cache - I saw a number of posts about setting "prefer" but I don't have this option anywhere (running v6.12.4). Following this, I was able to manually spin down the disks and they would stay that  way and it seemed they did so after the set 1 hour spin down period I set. However today, I have noticed that the drives are still spun up and when I manually spin them down, they do so initially but then spin up again a few minutes later despite no data being accessed on the "storage" drives. i have 2 dockers and 1 VM running and as per above these are (or should be as far as I can tell) running off my cache... I'm stumped though, can't figure out why it worked and then stopped working within a space of 24 hours.... I've attached my diagnostics file if it's of any use.

Any help would be greatly appreciated!!!

 

galactica-diagnostics-20231114-2224.zip

Edited November 15, 20232 yr by thaoggamer
Incorrect Diagnostics file attached

Ok so after a little more tinkering I found remnants of the appdata/domains/system folders on a number of the array disks.

I deleted these and it appears that the power management settings now work fine. Only disks actively being read from or written to are no powered on.