With support for over 50 file systems, excluding user space implementations, GNU/Linux has been extremely successful at supporting file system innovation. That success has no doubt been aided by open source development. However, the storage industry is experiencing major architectural changes, and understanding emerging file systems -- and how to apply them -- is critical to keeping up with today's demands.
Changes impacting storage are taking place at every layer of the network architecture: Disk drives are continuing on a Moore's law-like cost/capacity curve, yet concurrently we are also seeing the growth of solid-state technology to overcome the inherent performance limitations of mechanical disk; virtualization is changing how architects think about storage, as we now have operating systems running entirely in user space within a virtual machine; and applications are choosing HTTP over FC as the preferred storage protocol.
http://www.technewsworld.com/story/Next-Gen-Linux-File-Systems-Change-Is-the-New-Constant-69732.html
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