Book Image

Ceph Cookbook - Second Edition

By : Vikhyat Umrao, Karan Singh, Michael Hackett
Book Image

Ceph Cookbook - Second Edition

By: Vikhyat Umrao, Karan Singh, Michael Hackett

Overview of this book

Ceph is a unified distributed storage system designed for reliability and scalability. This technology has been transforming the software-defined storage industry and is evolving rapidly as a leader with its wide range of support for popular cloud platforms such as OpenStack, and CloudStack, and also for virtualized platforms. Ceph is backed by Red Hat and has been developed by community of developers which has gained immense traction in recent years. This book will guide you right from the basics of Ceph , such as creating blocks, object storage, and filesystem access, to advanced concepts such as cloud integration solutions. The book will also cover practical and easy to implement recipes on CephFS, RGW, and RBD with respect to the major stable release of Ceph Jewel. Towards the end of the book, recipes based on troubleshooting and best practices will help you get to grips with managing Ceph storage in a production environment. By the end of this book, you will have practical, hands-on experience of using Ceph efficiently for your storage requirements.
Table of Contents (15 chapters)

Benchmarking Ceph RBD using FIO

Flexible I/O (FIO); it's one of the most popular tools for generating I/O workload and benchmarking. FIO has recently added native support for RBD. FIO is highly customizable and can be used to simulate and benchmark almost all kinds of workloads. In this recipe, we will learn how FIO can be used to benchmark the Ceph RBD.

How to do it...

To benchmark the Ceph Block Device, we need to create a block device and map that to the Ceph client node:

  1. Install the FIO package on the node where you mapped the Ceph RBD image. In our case, it's the ceph-client1 node:
        # yum install fio -y

Since FIO supports RBD ioengine, we do not need to mount the RBD image as a filesystem. To benchmark...