Welcome to Ceph — Ceph Documentation Ceph is highly reliable, easy to manage, and free The power of Ceph can transform your company’s IT infrastructure and your ability to manage vast amounts of data To try Ceph, see our Getting Started guides To learn more about Ceph, see our Architecture section
Beginner’s Guide — Ceph Documentation The purpose of A Beginner’s Guide to Ceph is to make Ceph comprehensible Ceph is a clustered and distributed storage manager If that’s too cryptic, then just think of Ceph as a computer program that stores data and uses a network to make sure that there is a backup copy of the data
Architecture — Ceph Documentation Ceph uniquely delivers object, block, and file storage in one unified system Ceph is highly reliable, easy to manage, and free Ceph delivers extraordinary scalability–thousands of clients accessing petabytes to exabytes of data
Intro to Ceph — Ceph Documentation Intro to Ceph¶ Whether you want to provide Ceph Object Storage and or Ceph Block Device services to Cloud Platforms, deploy a Ceph Filesystem or use Ceph for another purpose, all Ceph Storage Cluster deployments begin with setting up each Ceph Node, your network, and the Ceph Storage Cluster A Ceph Storage Cluster requires at least one Ceph
Intro to Ceph — Ceph Documentation Ceph stores data as objects within logical storage pools Using the CRUSH algorithm, Ceph calculates which placement group (PG) should contain the object, and which OSD should store the placement group The CRUSH algorithm enables the Ceph Storage Cluster to scale, rebalance, and recover dynamically
Ceph File System — Ceph Documentation The Ceph File System, or CephFS, is a POSIX-compliant file system built on top of Ceph’s distributed object store, RADOS CephFS endeavors to provide a state-of-the-art, multi-use, highly available, and performant file store for a variety of applications, including traditional use-cases like shared home directories, HPC scratch space, and
ceph -- ceph administration tool — Ceph Documentation ceph is a control utility which is used for manual deployment and maintenance of a Ceph cluster It provides a diverse set of commands that allows deployment of monitors, OSDs, placement groups, MDS and overall maintenance, administration of the cluster
Installing Ceph — Ceph Documentation Cephadm is a tool that can be used to install and manage a Ceph cluster cephadm supports only Octopus and newer releases cephadm is fully integrated with the orchestration API and fully supports the CLI and dashboard features that are used to manage cluster deployment
Control Commands — Ceph Documentation The ceph osd reweight command assigns an override weight to an OSD The weight value is in the range 0 to 1, and the command forces CRUSH to relocate a certain amount (1 - weight ) of the data that would otherwise be on this OSD