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

Managing the cluster configuration file


If you are managing a large cluster, it's good practice to keep your cluster configuration file (/etc/ceph/ceph.conf) updated with information about cluster monitors, OSDs, MDSs, and RGW nodes. With these entries in place, you can manage all your cluster services from a single node.

How to do it…

To better understand this, we will update the Ceph configuration file on ceph-node1 and add details of all monitor, OSD, and MDS nodes.

Adding monitor nodes to the Ceph configuration file

Since we have three monitor nodes, add their details to the /etc/ceph/ceph.conf file from ceph-node1.

Adding an MDS node to the Ceph configuration file

Like in monitor, let's add MDS node details to the /etc/ceph/ceph.conf file from ceph-node1.

Adding OSD nodes to the Ceph configuration file

Now, let's add the OSD nodes' details to the /etc/ceph/ceph.conf file from ceph-node1.