The notion of a replication-friendly storage system inspired me to build a filesystem around it, using the FUSE system.
Masterless peer-to-peer sounds better than master-slave replication. Just check the other NoSQL based FUSE enabled filesystems.
The usage scenario suggested by Salvatore Sanfilippo is more conceivable:
My best guess is a ramdisk-speed-alike filesystem that is partially persistent
Original title and link: redisfs - a Replication-Friendly Filesystem (NoSQL databases © myNoSQL)