Book Image

Ceph Cookbook

Book Image

Ceph Cookbook

Overview of this book

Ceph is a unified, distributed storage system designed for excellent performance, reliability, and scalability. This cutting-edge technology has been transforming the storage industry, and is evolving rapidly as a leader in software-defined storage space, extending full support to cloud platforms such as Openstack and Cloudstack, including virtualization platforms. It is the most popular storage backend for Openstack, public, and private clouds, so is the first choice for a storage solution. Ceph is backed by RedHat and is developed by a thriving open source community of individual developers as well as several companies across the globe. This book takes you from a basic knowledge of Ceph to an expert understanding of the most advanced features, walking you through building up a production-grade Ceph storage cluster and helping you develop all the skills you need to plan, deploy, and effectively manage your Ceph cluster. Beginning with the basics, you’ll create a Ceph cluster, followed by block, object, and file storage provisioning. Next, you’ll get a step-by-step tutorial on integrating it with OpenStack and building a Dropbox-like object storage solution. We’ll also take a look at federated architecture and CephFS, and you’ll dive into Calamari and VSM for monitoring the Ceph environment. You’ll develop expert knowledge on troubleshooting and benchmarking your Ceph storage cluster. Finally, you’ll get to grips with the best practices to operate Ceph in a production environment.
Table of Contents (18 chapters)
Ceph Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Understanding the VSM architecture


In this recipe, we will quickly go through the architecture of the Virtual Storage Manager, which consists of the following components:

The VSM Controller

VSM is a web-based application that is typically hosted on a controller machine, which is referred to as a VSM Controller node. You can use a dedicated physical or virtual server that can act as a VSM controller node. The VSM controller software is the core component of VSM that connects to the Ceph cluster through VSM agents. The VSM controller gathers all the data coming from VSM agents and monitors the Ceph cluster. For operations such as cluster creation, pool creation, and so on, the VSM controller sends instructions to VSM Agents to perform the required operation. As shown in the following diagram, Ceph administrators/operators connect to the VSM controller node via HTTPs or APIs, and they can use VSM software. The VSM controller node also connects to the OpenStack controller to configure OpenStack...