Most newer drives do this automatically on shut down.
I'd forgotten that this had to be done on older drives/
Thanks, I didn't know that. This is a "newish" drive (2.1 GB - so circa 2000?).
But Amiga's don't go through a shut down process that gives time/warning to the hard drive to park itself. The power just suddenly gets cut to the whole system / os.
I don't really think it's a big issue, but I saw a utility on my Supra installation disk that allowed you to do this and wondered about it.