Gluster is a distributed filesystem that works well in the cloud. This post explains how to configure GlusterFS on an Ubuntu 12.04 image running in HP’s cloud.
Using this setup, I gain all the benefits of a distributed and replicated (redundant) filesystem for my in-cloud services, and can back these servers to persistent block storage if I want. It’s a great way to gain stable networked filesystems in the cloud, and reduce or eliminate single points of failure.