half of these are already managed by something like ZFS.. (the only one i can think of which is not inherent in the Filesystem is High availability). But one sh

half of these are already managed by something like ZFS.. (the only one i can think of which is not inherent in the Filesystem is High availability). But one should build that kind of redundancy on a higher level anyways. (multiple storage pools, replicating writes etc). or, if you go fibre channel, just replicate the writes across multiple storage systems and be done with it. (this requires a fibre channel network though, which is neither easy nor cheap).