BeeGFS!

A freeware tool for reading and extracting files from EXT2/EXT3/EXT4, HFS, UFS2, Reiser4, and ReiserFS partitions in Windows.

FUSE for OS X allows you to extend OS X's native file handling capabilities via third-party file systems. OSXFUSE is a successor to MacFUSE , which has been used as a software building block by dozens of products, but is no longer being maintained.

Ceph is a distributed object store and file system designed to provide excellent performance, reliability and scalability.

Quobyte is a complete software storage solution for reliable and scalable storage infrastructures. It turns commodity hardware into a data center file system that enables warehouse-scale storage infrastructures without compromising operations.

XtreemFS is an object-based, distributed file system for wide area networks. The file system replicates objects for fault tolerance and caches metadata and data to improve performance over high-latency links. SSL and X.509 certificates support make XtreemFS usable over public networks.

With LINBIT's DRBD®, your firm can accomplish its High Availability or Disaster Recovery goals with more success than proprietary alternatives. DRBD enables the usage of COTS hardware enabling your firm to reduce its storage/replication expenses by up to 90 percent.

Explore2fs is a GUI explorer tool for accessing ext2 and ext3 filesystems. It runs under all versions of Windows and can read almost any ext2 and ext3 filesystem.

It provides Windows NT4.0/2000/XP/2003/Vista/2008 with full access to Linux Ext2 volumes (read access and write access). This may be useful if you have installed both Windows and Linux as a dual boot environment on your computer.

E2fsprogs (sometimes called the e2fs programs) is a set of utilities for maintaining the ext2, ext3 and ext4 file systems.

Filesystem in userspace implementation for MaxOSX

GlusterFS is a scale-out network-attached storage file system. It has found applications including cloud computing, streaming media services, and content delivery networks. GlusterFS was developed originally by Gluster, Inc. and then by Red Hat, Inc., as a result of Red Hat acquiring Gluster in 2011.In June 2012, Red Hat Storage Server was announced as a commercially supported integration of GlusterFS with Red Hat Enterprise Linux. Red Hat bought Inktank Storage in April 2014, which is the company behind the Ceph distributed file system, and re-branded GlusterFS-based Red Hat Storage Server to "Red Hat Gluster Storage"GlusterFS aggregates various storage servers over Ethernet or Infiniband RDMA interconnect into one large parallel network file system. It is free software, with some parts licensed under the GNU General Public License (GPL) v3 while others are dual licensed under either GPL v2 or the Lesser General Public License (LGPL) v3. GlusterFS is based on a stackable user space design. »

Lustre is a massively parallel filesystem designed for high-performance, large-scale data.

MooseFS is a fault-tolerant distributed file system. It spreads data over several physical locations(servers), which are visible to user as one resource. For standard file operations MooseFSacts as any other Unix-alike filesystem:• Hierarchical structure (directory tree)• Stores POSIX file attributes (permissions, last access and modification times)• Supports special files (block and character devices, pipes and sockets)• Symbolic links (file names pointing to target files, not necessarily on MooseFS) and hardlinks (different names of files that refer to the same data on MooseFS)• Access to the file system can be limited based on IP address and/or passwordDistinctive features of MooseFS are:• High reliability (several copies of the data can be stored on separate physical machines)• Capacity is dynamically expandable by adding new computers/disks• Deleted files are retained for a configurable period of time (a file system level ”trash bin”)• Coherent snapshots of files, even while the file is being written/accessed »