Book Image

Ceph: Designing and Implementing Scalable Storage Systems

By : Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk, Anthony D'Atri, Vaibhav Bhembre
Book Image

Ceph: Designing and Implementing Scalable Storage Systems

By: Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk, Anthony D'Atri, Vaibhav Bhembre

Overview of this book

This Learning Path takes you through the basics of Ceph all the way to gaining in-depth understanding of its advanced features. You’ll gather skills to plan, deploy, and manage your Ceph cluster. After an introduction to the Ceph architecture and its core projects, you’ll be able to set up a Ceph cluster and learn how to monitor its health, improve its performance, and troubleshoot any issues. By following the step-by-step approach of this Learning Path, you’ll learn how Ceph integrates with OpenStack, Glance, Manila, Swift, and Cinder. With knowledge of federated architecture and CephFS, you’ll use Calamari and VSM to monitor the Ceph environment. In the upcoming chapters, you’ll study the key areas of Ceph, including BlueStore, erasure coding, and cache tiering. More specifically, you’ll discover what they can do for your storage system. In the concluding chapters, you will develop applications that use Librados and distributed computations with shared object classes, and see how Ceph and its supporting infrastructure can be optimized. By the end of this Learning Path, you'll have the practical knowledge of operating Ceph in a production environment. This Learning Path includes content from the following Packt products: • Ceph Cookbook by Michael Hackett, Vikhyat Umrao and Karan Singh • Mastering Ceph by Nick Fisk • Learning Ceph, Second Edition by Anthony D'Atri, Vaibhav Bhembre and Karan Singh
Table of Contents (27 chapters)
Title Page
About Packt
Contributors
Preface
Index

Common tasks


In this section, we cover procedures for a number of common tasks that Ceph admins execute as needed. These include managing flags and services, dealing with component failures, cluster expansion, and balancing OSD utilization. We'll also touch on upgrades between Ceph releases.

Installation

Here we will summarize the bootstrapping of Ceph on bare metal utilizing the same ceph-ansible tools but without Vagrant orchestrating. If you're using for loops, like Jack Butler you're doing it wrong.

First, clone the ceph-ansible GitHub repo onto a system or VM that will serve as your admin node.

$ git clone https://github.com/ceph/ceph-ansible/

Next install Ansible via your Linux distribution's package manager, pip, or download from http://docs.ansible.com/ansible/latest/intro_installation.html . The latest stable release is suggested.

Next populate Ansible's inventory file with hosts and host groups using /etc/ansible/hosts as a starting point. You'll end up with a file resembling this example...