Monday, May 13, 2013

Distributed File System : Network, Distributed or Clustered ?

I often times hear these three distinct DFSs used to mean one in the same.  This presentation does a nice job of describe how they are different and how they are the same:

Network File System: A single server (or at least an appearance) and multiple network clients.
Examples: NFS, CIFS

Clustered File System:Servers sharing the same local storage (usually SAN at block level)shared storage architecture.
Examples: GFS2, OCFS2

Distributed file system : “Shared nothing” model, independent servers. intelligent server architecture.
Examples: pNFS, AFS

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