Book Image

Learning Ceph - Second Edition

By : Karan Singh, Vaibhav Bhembre, Anthony D'Atri
Book Image

Learning Ceph - Second Edition

By: Karan Singh, Vaibhav Bhembre, Anthony D'Atri

Overview of this book

Learning Ceph, Second Edition will give you all the skills you need to plan, deploy, and effectively manage your Ceph cluster. You will begin with the first module, where you will be introduced to Ceph use cases, its architecture, and core projects. In the next module, you will learn to set up a test cluster, using Ceph clusters and hardware selection. After you have learned to use Ceph clusters, the next module will teach you how to monitor cluster health, improve performance, and troubleshoot any issues that arise. In the last module, you will learn to integrate Ceph with other tools such as OpenStack, Glance, Manila, Swift, and Cinder. By the end of the book you will have learned to use Ceph effectively for your data storage requirements.
Table of Contents (18 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Architectural decisions


In this section we'll explore a number of choices to make regarding how your Ceph cluster's resources are deployed. Some of these may be adjusted after the fact with varying degrees of difficulty, but careful attention to your current and future needs here will save you considerable grief in the future.

Pool decisions

As we'll explore in Chapter 8, Ceph Architecture: Under the Hood, Ceph clusters provision one or more pools in which data is organized, for example, one for block storage and another for object storage. These pools may have different designs based on different use cases; they may even live on different hardware. Several important decisions must be made before provisioning each pool.

Replication

The keeping of redundant copies of data is fundamental to Ceph, and the manner in which this is done is a fundamental characteristic of each pool. One is not prevented from provisioning a pool with no redundancy, but it rarely if ever makes sense to do so. Ceph today...