If you’re looking to centralize the data storage in your enterprise – perhaps in response to a particularly persuasive and insightful article you read on the Internet somewhere – you might want to take a look at the Openfiler project.
Openfiler is a Linux distribution designed to be used as the interface for a Network Attached Storage device. Essentially, it is used to build a storage pool that the other computers in your environment can connect to in order to share data. It supports NFS, SMB, FTP, iSCSI, and a tremendous number of other acronyms. The only real annoyance is that the otherwise excellent web GUI doesn’t include any tools for setting up an iSCSI initiator, so that must be done from the command line.