https://blogs.technet.microsoft.com/filecab/2012/05/20/introduction-to-data-deduplication-in-windows-server-2012/
https://msdn.microsoft.com/en-us/library/windows/desktop/hh449202(v=vs.85).aspx
https://www.usenix.org/conference/atc12/technical-sessions/presentation/el-shimi