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Ceph

Ceph is an open-source software-defined storage platform for unified object, block, and file storage.

  • ceph.com
  • 22 topics
  • Updated Oct 27, 2026

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Who is Ceph?

Ceph is an open-source, software-defined storage platform that provides unified object, block, and file storage for distributed systems and cloud infrastructures.

  • Open-source unified storage platform for object, block, and file workloads
  • Software-defined storage designed for commodity hardware deployment
  • Distributed architecture with cluster-wide replication and data durability mechanisms
  • Integration with cloud, container, and virtualization platforms for infrastructure storage services
  • Community-driven project with enterprise adoption via vendors and distributions
Show more

More About Ceph

Ceph provides a unified storage platform that exposes object, block, and POSIX-compatible file interfaces from a single distributed system, and is adopted in enterprise, service provider, and research environments that require scale-out storage on commodity hardware.

The Ceph architecture is based on a Reliable Autonomic Distributed Object Store (RADOS) (data management), which distributes data objects across many storage nodes and uses placement groups and a pseudo-random data distribution algorithm to balance data without centralized metadata bottlenecks.

Ceph Object Storage (object storage) exposes an S3- and Swift-compatible Representational State Transfer (REST) Application Programming Interface (API) for application integration, while Ceph Block Storage (block storage) presents virtual block devices that can be attached to virtual machines, bare-metal hosts, or container platforms, and CephFS (file storage) provides a POSIX file system interface backed by the same object store.

The system is designed for horizontal scaling, with storage clusters composed of monitor daemons for cluster maps and quorum, object storage daemons (OSDs) for data placement and replication, and optional manager daemons for additional services and metrics aggregation.

In enterprise environments, Ceph is used as a storage backend for infrastructure platforms such as OpenStack (cloud infrastructure), Kubernetes distributions (container infrastructure), and virtualization stacks, supplying persistent volumes, image storage, and archival object repositories.

Ceph incorporates data protection features such as replication and erasure coding (data resilience), policy-driven data placement, and self-healing capabilities that rebalance or recover data when nodes or disks fail or are added to the cluster.

The project’s software-defined model allows organizations to deploy storage using standard x86 servers, disk enclosures, and networking gear, aligning with infrastructure strategies that separate storage services from proprietary hardware appliances.

Operationally, Ceph provides integration points for monitoring and management through command-line tools, dashboards, and APIs, and it is packaged and supported in several commercial distributions and appliances that target enterprise storage use cases.

Within an enterprise technology directory, Ceph fits into the categories of software-defined storage, object storage, block storage, and distributed file systems, with applicability to private cloud storage backends, large-scale archive and backup repositories, and general-purpose storage for containerized and virtualized workloads.

Our description of Ceph. Updated December 2025.

Topics

All 22 topics

Similar companies

Ordered by the topics they cover in common with Ceph.

Market segments

  • Information Technology / Software & Services / IT Services / Internet Services & Infrastructure

Projects

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