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 pools for RBD mirroring with one way replication

RBD mirroring is configured by enabling it on a pool basis in a primary and secondary Ceph cluster. There are two modes that can be configured with RBD mirroring depending on what level of data you choose to mirror. Note that the enabled RBD mirroring configuration must be the same per pool on primary and secondary clusters.

  • Pool mode: Any image in a pool with journaling enabled is mirrored to the secondary cluster.
  • Image mode: Only specifically chosen images with mirroring enabled will be mirrored to the secondary cluster. This requires the image to have mirroring enabled for it.

How to do it...

Before any data can be mirrored from the Ceph cluster to the backup...