I Need a Dummy's guide to Raid I Get the basics just having a problem translating it it into a real world situation just looking for a secure solution to store ongoing and key projects in a location that is not computer specific so if a machine goes down I can hop on another computer with my work all available Currently have Mac pro 4 bays 2TB Time Machine 1TB Company A Work 1.5 TB Company B Work 500GB OS and Scratch Disc Looking to migrate my files to external raid not really sure how this would work. How Do i intergrate time machine into the process I am probably getting confused between the redundancy needed for the raid and the effective back up. Say I bought an 8TB raid Effective space 4TB The other 4 TB is for the redundancy of the raid not space available for backup ie time machine? So would i need two Raids one for work and one for time machine? Can any one help as am suffering from an overload of information and no understanding.