Hey Bob:
Below is a technote I've had bookmarked for years:
http://www3.digidesign.com/index.cfm?navid=3&langid=151&itemid=29746&catego...
This tech note exists for Windows and Mac.
*While Digidesign does not officially support Facilis fibre-channel drives, some Pro Tools users have had successful results using TerraBlock.*
From my days as a Systems Engineer & Installer, I personally installed dozens of Pro Tools stations on Facilis, both Mac & PC.
I don't have any consumer / forward facing docs that spell out Pro Tools...and I doubt "Audio Mix" is specific enough for you. Facilis recently (?) re-did their website, and thus far, a doc like this eludes me.
I'd suggest giving them a call and asking, especially given the new multi user write functionality. Jim McKenna and his team are fantastic.
Good Luck!
~Michael
.: michael kammes mpse
.: senior applications editor . post workflow consultant
.: audio specialist . act fcp . acsr
.: michaelkammes.com