Book Image

Mastering Ceph, - Second Edition

By : Nick Fisk
Book Image

Mastering Ceph, - Second Edition

By: Nick Fisk

Overview of this book

Ceph is an open source distributed storage system that is scalable to Exabyte deployments. This second edition of Mastering Ceph takes you a step closer to becoming an expert on Ceph. You’ll get started by understanding the design goals and planning steps that should be undertaken to ensure successful deployments. In the next sections, you’ll be guided through setting up and deploying the Ceph cluster with the help of orchestration tools. This will allow you to witness Ceph’s scalability, erasure coding (data protective) mechanism, and automated data backup features on multiple servers. You’ll then discover more about the key areas of Ceph including BlueStore, erasure coding and cache tiering with the help of examples. Next, you’ll also learn some of the ways to export Ceph into non-native environments and understand some of the pitfalls that you may encounter. The book features a section on tuning that will take you through the process of optimizing both Ceph and its supporting infrastructure. You’ll also learn to develop applications, which use Librados and distributed computations with shared object classes. Toward the concluding chapters, you’ll learn to troubleshoot issues and handle various scenarios where Ceph is not likely to recover on its own. By the end of this book, you’ll be able to master storage management with Ceph and generate solutions for managing your infrastructure.
Table of Contents (18 chapters)
Free Chapter
1
Section 1: Planning And Deployment
6
Section 2: Operating and Tuning
13
Section 3: Troubleshooting and Recovery

BlueStore

In this chapter, you'll learn about BlueStore, the new object store in Ceph designed to replace the existing filestore. Its increased performance and enhanced feature set are designed to allow Ceph to continue to grow and provide a resilient high-performance distributed storage system for the future. Since the Luminous release, BlueStore is now the recommended and default object store that's used when creating new OSDs. This chapter will cover how BlueStore works and why it is much better suited than Filestore for Ceph's requirements. Then by following a step by step tutorial you will be guided through how to upgrade a Ceph cluster to BlueStore.

In this chapter, you'll learn the following topics:

  • What is BlueStore?
  • The limitations of filestore
  • What problems BlueStore overcome
  • The components of BlueStore and how it works
  • Introduction to ceph-volume...