I am new to unraid and since I upgrade to 6.10.3 I found one of the disk and parity disk never spin down.
I have checked that the setting of disk's spin down delay is default and even the disk was spin down manually, it will spin up in few seconds while the File Activity logs no access to file in this disk but only cache.
I have set appdata, system, domains, isos all to cache:prefer.
tower-diagnostics-20220704-2047.zip