It seems that CSVs still require a shared storage system. The biggest thing I miss on Windows is a DRBD equivalent. I want to take a couple servers, and have them sync up their disks over the network - no need for a single point of failure SAN.
http://en.wikipedia.org/wiki/Distributed_File_System_(Micros...
AFAIK, Microsoft still has no solution in this case but to introduce a single point of failure via a SAN or other shared storage. I'd love to be wrong.