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Ceph (software)
open-in-new
<p>Ceph (pronounced /ˈsɛf/) is a <a href="/facts/Free_software/IaoVtJXn">free</a> and <a href="/facts/Open-source_software/HzTaB8E9">open-source</a> software-defined <a href="/facts/Computer_data_storage/wPHKFpdx">storage</a> <a href="/facts/Computing_platform/DmKwp5Bk">platform</a> that provides <a href="/facts/Object_storage/NPHWJSW6">object storage</a>, <a href="/facts/Block-level_storage/G5D4bKPd">block storage</a>, and <a href="/facts/File_system/FdPm90uc">file storage</a> built on a common <a href="/facts/Computer_cluster/mT7S1BcX">distributed</a> cluster foundation. Ceph provides distributed operation without a <a href="/facts/Single_point_of_failure/royNGgjd">single point of failure</a> and scalability to the <a href="/facts/Exabyte/BNHUp9Qq">exabyte</a> level. Since version 12 (Luminous), Ceph does not rely on any other conventional filesystem and directly manages <a href="/facts/Hard_disk_drive/kekLSGSE">HDDs</a> and <a href="/facts/Solid-state_drive/aMHBy8gU">SSDs</a> with its own storage backend BlueStore and can expose a <a href="/facts/POSIX/mQkSt234">POSIX</a> <a href="/facts/Filesystem/FdPm90uc">filesystem</a>. </p><p>Ceph <a href="/facts/Replication_(computer_science)/QIaooMjL">replicates</a> data with <a href="/facts/Fault_tolerance/rasrYlJk">fault tolerance</a>, using <a href="/facts/Commodity_hardware/fbCrXREb">commodity hardware</a> and Ethernet IP and requiring no specific hardware support. Ceph is <a href="/facts/High_availability/y3J8GnEo">highly available</a> and ensures strong data durability through techniques including replication, <a href="/facts/Erasure_code/ea1C1z2X">erasure coding</a>, snapshots and clones. By design, the system is both self-healing and <a href="/facts/Self-management_(computer_science)/57wFIr7L">self-managing</a>, minimizing administration time and other costs. </p><p>Large-scale production Ceph deployments include <a href="/facts/CERN/y1gwRchm">CERN</a>, <a href="/facts/OVH/GISv04HD">OVH</a> and <a href="/facts/DigitalOcean/bTGD40wt">DigitalOcean</a>. </p>