Coda (file system)
From Wikipedia, the free encyclopedia.

Coda is an experimental distributed file system, developed at Carnegie Mellon University since 1987, under the direction of M. Satyanarayanan. It is based on the older AFS, a similar but less advanced distributed file system.

Major features include:

• Disconnected operation - Disconnect from the file server and carry on working
• Client-side caching - Improves performance by reducing the need to fetch data from the server
• Replication - Store and manipulate the same data on multiple servers, to improve reliability and scalability
• Security - Uses a security system derived from Kerberos
• Well-defined semantics of sharing, even with network failures

Coda is still under development, and the emphasis appears to be on moving from a very good research project to a useful filesystem ready for large-scale production use.

External Links

• http://coda.cs.cmu.edu/

The original article can be found at: http://en.wikipedia.org/wiki/Coda_(file_system).
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