This was the push I needed to switch to Graphene. The Gemini offer popped up for me a couple of weeks ago. The only options were something like ‘Yes’ or ‘Not now’. No option to say never, which of course means they would bug me again and again.

So I reported it as Spam and made the jump.

Not necessarily. It varies by manufacturer, and some manufacturers use both methods for the various HD’s they make. Both work just fine, and both have their strengths and weaknesses.

Former industry guy here.

Some HD’s park the head on a plastic ramp at the OD of the platter stack. I don’t see that structure in your picture.

Others park the head on the platter itself. This area is always not usable area, since contact isn’t great for data integrity. This is a simpler solution but comes at the cost of reduced data capacity.

I don’t recall if this park area is on the ID or OD (it’s been a long time), but the position in your picture is reasonable since it would cost less disk area…