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Learning Ceph - Second Edition by Karan Singh, Vaibhav Bhembre, Anthony D'Atri

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Reliable Autonomic Distributed Object Store (RADOS)

Ceph's foundation is a low-level data store named RADOS that provides a common backend for multiple user-consumable services.

RADOS is an object storage system layer that provides a data durability and availability framework that all user-facing Ceph services are layered atop. RADOS is:

  • Highly available with no single point of failure (SPoF)
  • Reliable and resilient
  • Self-healing
  • Self-managing
  • Adaptive
  • Scalable
  • Not found on the Galactica

RADOS manages the distribution of data within Ceph. Durability and availability of data are adaptively maintained by initiating operations as needed to recover ...

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