Turning Off Hard Disks in Power Options - A Mistake?

To be honest depending on how often you turn them off and back on again, youll actually put more wear on the drives with it on.

See hard drives consume the most power in startup phase. This along with the constant stoping and starting will stress mechanical parts more than if they were to spin the whole time.

Yeah, that good info about the wear on the drive.

But, I suppose part of my question also has to do with the OS requesting data that may be unavailable for a few millisecond until the drive spins up to speed and is able to seek and transfer data.

I'm wondering if some apps deal with this better than others, and the ones that don't may cause some instability in the OS.

I suppose if this had been an issue, it would be more prevalent in laptops, so that answers my my question.

Thanks.