Introduction

This chapter covers Ceph's components, services, and how they work together:

• The daemons and components that make up the Ceph backend:
• • RADOS
  • Monitors (MONs)
  • OSDs
  • Ceph Manager
  • RGW
• The services presented to users:
• • Block
  • Object
  • File

We'll describe each in turn, and what they mean to Ceph admins and users. This sets the stage for topics covered in the following chapters: