License issues prevent the integration of ZFS with the Linux kernel, but Linux users can try the highly praised filesystem in userspace.
Sun’s Zettabyte File System (ZFS) was officially introduced to (Open)Solaris in June 2006, replacing the legacy UFS (Unix File System). ZFS is a 128-bit filesystem with a number of interesting features, such as improved safeguards against defective disks and the ability to manage large numbers of files. Because currently there are no 128-bit data types, ZFS uses the first 64 bits and pads the rest of the structure, ignoring the unused bits in normal operations. The 128-bit design will make it easier to migrate to 128-bit types some time in the future.
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