MyBooks are definitely not a recommended media drive that I would tell anyone to use for video editing. If it's all you can afford for the moment, then go ahead, but look to step up to a video centric product from someone like G-Tech, MaxxDigital or Sonnet in the future.
In order to do a RAID you need multiple drives, generally in one enclosure that are all formatted together as one large media drive. In my case I have a couple of 8TB arrays that are eight 1TB drives all striped as one large array. So it shows up as one large hard drive on my desktop. It runs in RAID 5 which means that I can lose any one of those individual drives, but all my media is safe.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.
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