[trevor ambrose]"Any suggestions as to what the best 4TB Raid drive there is for the money? "
Ask 10 people and you'll get 10 different answers. Just click on an of the banner ads on the Cow for reputable, reliable storage solutions from proven, trustworthy vendors including CalDigit, Dulce Systems and Maxx Digital.
My personal recommendation for best bang for the buck is the CalDigit HDElement:
I recommend Maxx Digital, Small Tree, Sonnet and Dulce as four excellent products. WeibeTech makes some sweet RAIDs as well. We run all Maxx Digital 8TB and 16TB RAIDs at the moment.
As Alan noted, redundancy is all in how you set up the RAID. RAID 0 gives you the most speed with complete data loss in the event of a failure. RAID 5 has redundancy at the cost of the loss of one drive. So your 4TB RAID might only have 3 or 3.5TB of actual storage space depending on how large the individual drives are. Our 8TB RAIDS have approx. 6.5TB of available space when they are empty as they are all set up in RAID 5.
And when purchasing a RAID, too many people don't think about Render Files. Render Files, Graphics, Audio Files, etc.... all take up room. If you're simply buying for what you think you need to digitize, you're going to come up short. Also remember that all RAIDs slow down as they fill up. So I always purchase much larger than I need to maintain overhead in the arrays. If I think I need 4TB for a project, I'll buy an 8TB RAID to ensure I don't run out of room and my array doesn't slow down too much.
Walter Biscardi, Jr.
Editor, Colorist, Director, Writer, Consultant, Author, Chef. HD Post and Production Biscardi Creative Media