I am hopefully after some help.
I've just setup a new unraid server with just the array bit with some data on it. I have no installed dockers/VMs and only a few plugins at this stage.
I have followed the guide in the first post however according to powertop I am not even entering c2 after doing all the tweaks. Powertop autotune command shows all the options as 'good', however on the dashboard there always seems to be a bit of load on the CPU.
Disks are fully spinning down and tips and tweaks is set as per the guide, as well as the BIOS settings I could find. The only 'weird' BIOS setting I had was enabling C-States C7/C8/C9 etc was 'Package C-State limit' which is set to Auto, as it wanted me to pick a specific C state setting for idle.
The only other setting was ‘native aspm’ which make you choose between BIOS or OS to control ASPM - I left this at BIOS, does that need changing?
Spec is as follows:
Core i3-12100
16 GB Corsair Vengeance LPX
Gigabyte H610 DDR4 Mini ITX
Crucial P3 Plus M2 SSD 500GB (brand new - Cache)
2 x 4TB Seagate Ironwolf HDD (brand new - 1 Parity, 1 Array)
1 x 4TB Seagate Desktop HDD (unsure on model, used - Array)
1 x 120GB Crucial MX300 Sata SSD (used - Cache for plex only - but plex isn't installed yet)
Any ideas if I can figure out what's going on?