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====== Comparison of Distributed Parallel File Systems ======

Currently only free software are listed

|           ^ Server requirement ^ Client requirement  ^ Managment commands                                    ^ RDMA support ^ Notes ^
^ MooseFS   | POSIX              | FUSE                | **mfstools(1)**, **mfscli(1)**, **mfsmount(8)**       | No  | Included in FreeBSD ports tree |
^ LizardFS  | POSIX              | FUSE, NFS 3, NFS 4, NFS 4.1 ((https://lizardfs.com/distributed-parallel-scale-file-system-accessible-via-nfs-protocol/)) | **lizardfs(1)**, **mfsmount(8)**                      | No  | A fork of MooseFS; Included in Debian GNU/Linux |
^ Lustre    | GNU/Linux          | Linux               | **lfs(1)**, **mkfs.lustre(8)**, **mount.lustre(8)**, **lustre_***, others | Yes | Too complicated |
^ Gfarm     | POSIX              | FUSE, Linux 2.6.32  | **gf***                                               | Yes | Included in Debian GNU/Linux; Hardcoded daemon user name ''_gfarmfs'' |
^ Quantcast | POSIX              | C++ and Java API, FUSE (read-only) | **qfs(1)**, others                    | No  | Requires CMake to build; installing prefix need to be separate, such as ''/opt/qfs'', to avoid file hierarchy pollution |
^ RozoFS    | GNU/Linux          | FUSE                | **rozo(1)**, others                                   | No  | Requires CMake to build; fixed storage target counts |
^ GlusterFS | POSIX              | FUSE, NFS 3         | **gluster(8)**, **mount.glusterfs(8)**                | Yes | Included in Debian GNU/Linux and FreeBSD ports tree; directory structure is stored directly in backend file system, no separated metadata target is required |
^ Ceph      | POSIX              | FUSE, Linux, NFS 4 (exported via NFS-Ganesha) | **ceph(1)**, **mount.ceph(8)**, **ceph-fuse(8)**, **rados(8)**, **ceph-create-keys(8)**, **ceph-mon(8)**, **ceph-bluestore-tool(8)**, others | Yes | Included in Debian GNU/Linux; Requires CMake to build since version 11.0.1; support direct using disk device as backend storage |
^ OrangeFS  | GNU/Linux          | FUSE, Linux, LD_PRELOAD  | **pvfs2-***, **ofs_***, **pvfs2fuse(1)**              | Yes | The latest released source package (2.9.7) contains dead code that break build if enabled, see https://pvfs2-users.beowulf-underground.narkive.com/joFRIhSW/problem-with-building-orangefs-2-8-5 |
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