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)

Configuring image mirroring

Image mirroring can be used when you choose to only want to mirror a specific subset of images and not an entire pool. The next recipe we will enable mirroring on a single image in the data pool and not mirror the other two images in the pool. This recipe requires you to have completed step 1 - step 9 in Disaster recovery replication using RBD mirroring recipe and have rbd-mirror running on backup site:

How to do it...

  1. Create three images in the ceph cluster as we did in the previous recipe:
       # rbd create image-1 --size 1024 --pool data 
--image-feature exclusive-lock,journaling
  1. Enable image mirroring on the data pool on the ceph and backup clusters:
        # rbd mirror pool enable...