Ceph Distributed Network File System
"Ceph is a distributed network file system designed to provide excellent performance, reliability, and scalability with POSIX semantics. I periodically see frustration on this list with the lack of a scalable GPL distributed file system with sufficiently robust replication and failure recovery to run on commodity hardware, and would like to think that--with a little love--Ceph could fill that gap," announced Sage Weil on the Linux Kernel mailing list.
Originally developed as the subject of his PhD thesis, he went on to list the features of the new filesystem, including POSIX semantics, scalability from a few nodes to thousands of nodes, support for petabytes of data, a highly available design with no signle points of failure, n-way replication of data across multiple nodes, automatic data rebalancing as nodes are added and removed, and a Fuse-based client.
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