DRBD!

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

StorPool enables so called “converged deployments”, i.e. using the same servers for both storage and compute, therefore making it possible to have a single standard “building block” for the datacenter and slashing costs. An extension to this concept is having a tight integration of the software layers running on this converged infrastructure – hypervisor, cloud management, etc – known as “hyper-convergence” or “hyper-converged” infrastructure.

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.

Why use BeeGFS?BeeGFS transparently spreads user data across multiple servers. By increasing the number of servers and disks in the system, you can simply scale performance and capacity of the file system to the level that you need, seamlessly from small clusters up to enterprise-class systems with thousands of nodes.

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. »