Red Hat Storage in the Cloud
For a description of how to set up Red Hat Storage 2.0, particularly for cloud computing, there is a reference architecture called "Red Hat Storage 2.0 Installation and Configuration Guide" now available:
https://access.redhat.com/knowledge/refarch/2012-red-hat-storage-20-installation-and-configuration-guide
Besides describing some theory about how Red Hat Storage and the glusterfs file system work, the document also details how to configure the product for both on-premise deployment and for use with public clouds.