SOHO NASes may do that. I’ve been a storage appliance engineer for 12 years and worked on the design of a couple commercial NAS appliances but I’ve never actually used a non enterprise NAS having access to more exotic things. One of the NASes I use for my media is actually a prototype release I never bothered replacing with the commercial version.
If it can be software controlled, I’d not recommend setting a spin down timeout. The MTBF on drives that spin uninterrupted for years is far greater than ones that spin up and down. Back when HDDs still existed for personal computers the “Idle disks after X minutes” was always disabled for people and systems in critical roles. How much longer they last beyond the reasonable life span when uninterrupted is actually quite impressive. Like diesel engines, if their temp is kept stable and they are constantly spinning they will roll over the proverbial odometer twice.


