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Ceph Introduction

Sat, 24 Jan 2026 21:06:33 +0000

Ceph – Technical Deep Dive

Ceph is a distributed, software-defined storage system designed to provide scalable, fault-tolerant storage without a centralized metadata bottleneck. It is built around the RADOS object store, which serves as the foundation for all storage interfaces.

Core Architecture

RADOS (Reliable Autonomic Distributed Object Store)

RADOS is the lowest layer of Ceph and is responsible for:

storing data as objects,
replicating or erasure-coding data,
ensuring strong consistency,
handling recovery and rebalancing automatically.

Each object is stored on multiple OSDs (Object Storage Daemons) according to the configured replication or erasure coding rules.

Openstack

Fri, 23 Jan 2026 18:29:13 +0000

What is OpenStack?

OpenStack is an open-source cloud computing platform used to build and manage public, private, and hybrid clouds. It provides infrastructure as a service (IaaS), enabling organizations to create and control large pools of compute, storage, and networking resources through APIs and web dashboards.

OpenStack is designed to run on standard hardware and is widely used by enterprises, service providers, and research institutions to power scalable cloud environments.

About

Thu, 22 Jan 2026 21:52:24 +0000

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