LizardFS is an open source distributed file system that is POSIX-compliant and licensed under GPLv3.

[6] LizardFS makes files secure by keeping all the data in multiple replicas spread over the available servers.

It can also be used to build space-efficient storage because it is designed to run on commodity hardware.

It has applications in multiple fields and is used by institutions in finance, telecommunications, medicine, education, post-production, game development, cloud hosting services, and others.

LizardFS keeps metadata (e.g. file names, modification timestamps, directory trees) and the data separately.