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)

Disk performance baseline

The disk performance baseline test will be done in two steps. First, we will measure the performance of a single disk, and after that, we will measure the performance of all the disks connected to one Ceph OSD node simultaneously.

To get realistic results, I am running the benchmarking tests described in this recipe against a Ceph cluster deployed on physical hardware. We can also run these tests on the Ceph cluster, hosted on a virtual machine, but we might not get appealing results.

Single disk write performance

To get the disk read and write performance, we will use the dd command with oflag set to direct in order to bypass disk cache for realistic results.

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