Thus far, this series on network-attached storage (NAS) distributions haslooked at three different approaches to the problem. OpenMediaVaultprovides a NAS server using traditional Linux filesystems, Rockstor baseseverything on the Btrfs filesystem, and FreeNAS is a FreeBSD-based systemusing ZFS. This fourth (and probably final) installment in this series goesback to Btrfs with a look at
EasyNAS,which is another attempt to make the unique features of Btrfs available in a dedicated NAS distribution.