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)

 Deploying Ceph MDS

To configure the Metadata Server for the Ceph Filesystem, you should have a running Ceph cluster. In the earlier chapters, we learned to deploy the Ceph storage cluster using Ansible; we will use the same cluster and Ansible for the MDS deployment.

How to do it...

Deploying an MDS server through ceph-ansible is quite easy, let's review the steps on how this is done:

  1. Using Ansible from ceph-node1, we will deploy and configure MDS on ceph-node2. On our Ansible configuration node ceph-node1, add a new section [mdss] to the /etc/ansible/hosts file:
  2. Navigate to the Ansible configuration directory on ceph-node1, /usr/share/ceph-ansible:
        root@ceph-node1 # cd /usr/share/ceph-ansible
  1. Run the...