Monday, August 27, 2012

Windows 2012 ReFS


Despite the many advantages NTFS offers over early FAT file systems, it’s been around since 1993, and Windows aficionados have been longing for a new file system for quite some time. Way back in 2004, we were eagerly looking forward to WinFS, but Vista disappointed us by not including it. Likewise, there was speculation early on that a new file system would be introduced with Windows 7, but it didn’t happen.
Windows Server 2012 brings us our long-awaited new file system, ReFS or the Resilient File System. It supports many of the same features as NTFS, although it leaves behind some others, perhaps most notably file compression, EFS, and disk quotas. In return, ReFS gives us data verification and auto correction, and it’s designed to work with Storage Spaces to create shrinkable/expandable logical storage pools. The new file system is all about maximum scalability, supporting up to 16 exabytes in practice. (This is the theoretical maximum in the NTFS specifications, but in the real world, it’s limited to 16 terabytes.) ReFS supports a theoretical limit of 256 zetabytes (more than 270 billion terabytes). That allows for a lot of scaling.

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