On Wed, Aug 22, 2018 at 7:44 AM, Al Kossow via cctalk
<cctalk at classiccmp.org> wrote:
I don't know if this is always true, but it
appears that the way you can
tell is if there is a "T" on the lower right of the 6580 badge on the front.
Possible, I don't recall anything in the docs to confirm. The only way
I know is by the 6360 model numbers:
6360-010 one drive, single sided
6360-011 two drives, single sided
6360-020 one drive, single or double sided
6360-022 two drives, single or double sided
The controller inside is significantly different (3
boards instead of one).
Keep in mind that communications options also sit in side the 6360
drive unit, so the additional boards could be for these options.
There are a couple up on eBay right now from seller
'potomacestore'
Double-sided 6360s seem to be much less common than single-sided.
My eBay-search-fu is weak, weirdly I cannot see any items in the store
for that seller.