HAMMER is a [[BSD-3]] licensed file system written in [[3. Reference/Software/Programming Languages/C|C]]. - [Website](https://www.dragonflybsd.org/hammer/) - [Source](https://gitweb.dragonflybsd.org/dragonfly.git/tree/HEAD:/sys/vfs/hammer2) - [Documentation](https://leaf.dragonflybsd.org/cgi/web-man?command=hammer&section=5) - [Wikipedia](https://en.wikipedia.org/wiki/HAMMER_(file_system)) (HAMMER1) - [Wikipedia](https://en.wikipedia.org/wiki/HAMMER2) (HAMMER2) > QUOTE # Notability # Philosophy Created by [[DragonFly BSD]]'s primary developer as a response to [[ZFS]] and [[BTRFS]]. # Platform Support # Features # Tips # References - http://bxr.su/DragonFly/sys/vfs/hammer2/DESIGN - https://www.dragonflybsd.org/hammer/hammer.pdf (2008 spec)