Quassel IRC is a modern, cross-platform, distributed IRC client, meaning that one or more clients can attach to and detach from a central core, much like the popular combination of screen and a text-based IRC client, but graphical. In addition to this unique feature, it aims to be a comfortable chatting program.
Gfarm is a distributed filesystem, generally used for large scale cluster computing. It's implemented in userland, and can be mounted by FUSE. It utilizes locality of a file to access a data node, and supports Globus GSI for Wide Area Network. Users can explicitly control file replica location on Gfarm. Gfarm can be used as an alternative storage system to HDFS for Hadoop, Samba, MPI-IO, and GridFTP. Monitoring via ZABBIX and Ganglia is also supported.
Bacula is a set of programs that allow you to manage the backup, recovery, and verification of computer data across a network of different computers. It is based on a client/server architecture and is efficient and relatively easy to use, while offering many advanced storage management features that make it easy to find and recover lost or damaged files.
Arkeia Network Backup is designed for organizations that require fast, easy-to-use, and affordable data protection. It backs up critical data to disk, tape, and cloud storage. Arkeia protects all major virtual platforms including VMware, Hyper-V, XenServer, and more than 200 physical platforms including Windows, Mac OS X, Linux, Netware, most UNIX flavors, and BSDs. The company’s source-side Progressive Deduplication technology helps users realize better performance at a lower cost by reducing data volumes. Arkeia’s deduplication is crucial to accelerating replication of on-premise backups to private or public clouds.