On Sun, Oct 06, 2019 at 10:55:24AM -0400, D. Hugh Redelmeier via talk wrote:

This goes quite deeply into HDD geometry. Probably a waste of time for most people, but I found it facinating.

<http://blog.stuffedcow.net/2019/09/hard-disk-geometry-microbenchmarking/>

That is pretty neat. I didn't know cylinders no longer ligned up, or that track moves were now faster than head changes. That's unexpected. -- Len Sorensen