Installing GlusterFS with a replicated volume on Ubuntu 14.04

GlusterFS is an open source distributed file system which provides easy replication over multiple storage nodes. Gluster File System is a distributed filesystem allowing you to create a single volume of storage which spans multiple disks, multiple machines and even multiple data centres.

via How to install GlusterFS with a replicated volume over 2 nodes on Ubuntu 14.04 | HowtoForge – Linux Howtos and Tutorials.

This seems like a good replacement for NFS, which has some issues.