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

How to plan a successful Ceph implementation

The following are some general rules for deploying a successful Ceph cluster:

  • Do use 10 G networking as a minimum
  • Do research and test the correctly sized hardware you wish to use
  • Don't use the no barrier mount option with filestore
  • Don't configure pools with a size of two or a min_size of one
  • Don't use consumer SSDs
  • Don't use raid controllers in write back mode without battery protection
  • Don't use configuration options you don't understand
  • Do implement some form of change management
  • Do carry out power-loss testing
  • Do have an agreed backup and recovery plan

Understanding your requirements and how they relate to Ceph

As we have discussed, Ceph is not...