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

Storage drives


Each Ceph cluster comprises a large number of individual storage drives that house both Ceph's internal metadata and the bulk data entrusted to us by users. By habit, many resources refer to these as disks, an artifact of the times when SSDs were not capacious or affordable, and even before they existed. Throughout this book we use the more expansive term drives to include other technologies. In practice and out in the community you will encounter the terms used interchangeably, though imprecisely.

Storage drive capacity

Less capacious drive models are often attractive from a price/GB (or price/TB) angle than each generation's densest monsters, but there are other factors. Every drive needs a bay to live in and a controller / HBA / expander channel. Cheap drives are no bargain if you have to acquire, manage, rack, power, and cool double the number of servers in order to house them.

You may also find that the awesomeness of your Ceph cluster draws users and applications out of...