September 22, 20223 yr Hi All, I've been having this issue for a couple of weeks now. My drives (usually all of them, but occasionally it's just 1+parity) won't spin down (or spin back up again if I force a spin down). I have tried disabling Docker & VMs, still happens. I have tried using the File Activity & Active streams plugins, but these show nothing is happening. tower-diagnostics-20220922-1809.zip I'm at a loss as to how to try and find the source of these reads & writes, so my drives can spin down when (as far as I'm aware), nothing should be happening! I've attached a diagnostics, hopefully that'll say something. If anyone can point me at anything else to check/any further information to give to help solve this, please let me know. thanks in advance.
September 22, 20223 yr Community Expert Solution You might want to check what is in the system share on disk5? If it is the docker.img or libvirt.img files then having the docker/VM services enabled will keep the disk spinning.
September 22, 20223 yr Author I shouldn't have had either on the array, as they were both set to prefer cache & they always used to be on the cache only, but I've just checked & docker.img was on disk 5 for some reason. I didn't even think to check the location, as I was still getting it with docker turned off, but maybe Unraid does stuff with docker.img for upto a min or so after docker has actually been turned off (I didn't leave it off long, as when I still saw the RW happening, I decided it must not be that & turned it back on!) I've moved it back to the cache drive where it should have been & will leave it be for a few hours/over night & confirm it's fixed it.
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