Power Mode Option missing in S.M.A.R.T Service

[Deramond]

Hello everyone,
i installed TrueNAS some days ago and wondered why my disks are not spinning down.
While checking all SMART Features i opened the options of the Service.
Unfortunately the Option "Power Mode" ist missing.


Did i miss something, is this option not always available?

 

[JohnDigital]

Look in storage>disks>edit disk

The SMART power options are in there for each disk.

 

[Deramond]

Thanks for the reply, i found the settings, unfortunately the disks don't spin down.

 

[JohnDigital]

Move the system dataset off of the spinning disks and onto a small set of SSDs.

 

[Deramond]

My Configuration is like that.
System in M.2 SSD, Files in RAID on 2*HDDs, optional VMs on another SSD, currently empty

 

[Dan Tudora]

hello
maybe that resources help
https://www.truenas.com/community/resources/hdd-spindown-timer.122/
success

 

[enjoywithme]

I'm confused by the "power mode" in the configuration of SMART service. According to the document, tests are not performed at the specified mode.
What's meaning of "NEVER"? NEVER tests?
Which setting should I choose if I want to SMART service running regularly?