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

Baseline network performance


In this recipe, we will perform tests to discover the baseline performance of the network between the Ceph OSD nodes. For this, we will be using the iperf utility. Make sure that the iperf package is installed on the Ceph nodes. iperf is a simple, point-to-point network bandwidth tester that works on the client server model.

To start network benchmarking, execute iperf with the server option on the first Ceph node and with the client option on the second Ceph node.

How to do it…

  1. On Ceph-node1, execute iperf with -s for the server, and -p to listen on a specific port:

    # iperf -s -p 6900
    

    Note

    You can skip the -p option if the TPC port 5201 is open, or you can choose any other port that is open and not in use.

  2. On Ceph-node2, execute iperf with the client option, -c:

    # iperf -c ceph-node1 -p 6900
    

    Note

    You can also use the -p option with the iperf command to determine the number of parallel stream connections to make with the server. It will return a realistic result if...