Ceph
From Wikipedia, the free encyclopedia
| Ceph | |
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| Developer: | University of California, Santa Cruz |
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| Latest release: | 1.0 / October 22, 2006 |
| OS: | Linux |
| Use: | Distributed file system |
| License: | LGPL |
| Website: | http://ceph.sourceforge.net |
Ceph is a Free Software distributed file system intended to provide high performance, reliability, and scalability. Ceph maximizes the separation between data and metadata management by replacing allocation tables with a pseudo-random data distribution function (CRUSH) designed for heterogeneous and dynamic clusters of unreliable object storage devices (OSDs). Ceph leverages device intelligence by distributing data replication, failure detection and recovery to semi-autonomous OSDs running a specialized local object file system. A dynamic distributed metadata cluster provides extremely efficient metadata management and seamlessly adapts to a wide range of general purpose and scientific computing file system workloads. Performance measurements under a variety of workloads show that Ceph has excellent I/O performance and scalable metadata management, supporting more than 250,000 metadata operations per second.
Ceph has been developed on the Linux operating system at the Storage Systems Research Center at the University of California, Santa Cruz. Research for Ceph has been supported by the Department of Energy, Lawrence Livermore National Laboratory, Los Alamos National Laboratory, and Sandia National Laboratory.
