A 8TB RAID5 should be an excellent choice for editing ProRes. Plenty of bandwidth.
You should be able to fit 50 hours of ProRes (for argument, let’s say 1080p 23.98 Pro Res 422 HQ) on your drive, and still have plenty of room for formatting, RAID5, and leaving 20% overhead for performance.
I think you’ll be fine.
~Michael
.: michael kammes mpse
.: senior applications editor . post workflow consultant
.: audio specialist . act fcp . acsr
.: michaelkammes.com
.: twitter: @michaelkammes
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