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

Creating Ceph Block Device


Up to now, we have configured Ceph client, and now we will demonstrate creating a Ceph block device from the client-node1 machine.

How to do it…

  1. Create a RADOS Block Device named rbd1 of size 10240 MB:

    # rbd create rbd1 --size 10240 --name client.rbd
    
  2. There are multiple options that you can use to list RBD images:

    ## The default pool to store block device images is "rbd", you can also specify the pool name with the rbd command using -p option:
    # rbd ls --name client.rbd
    # rbd ls -p rbd --name client.rbd
    # rbd list --name client.rbd
    
  3. Check the details of the rbd image:

    # rbd --image rbd1 info --name client.rbd