HDD Resting Time

Is it possible to have my HDDs rest? It seems like even when nothing is being accessed on my NAS, the activity lights blink and the HDDs sound like their spinning. I assume this is because the OLED needs to access the S.M.A.R.T. data to display temps and disk usage. If I remove these, will I get less disk usage? Or is there a way to program it to let my HDDs rest when there isn’t anything needing to access their information?

Thanks!

The OLED does not read S.M.A.R.T. data.

The following command should put it on standby.

sudo hdparm -S 60 /dev/sdx # x is a b c d etc.