Book Image

Mastering Ceph - Second Edition

By : Nick Fisk
Book Image

Mastering Ceph - Second Edition

By: Nick Fisk

Overview of this book

Ceph is an open source distributed storage system that is scalable to Exabyte deployments. This second edition of Mastering Ceph takes you a step closer to becoming an expert on Ceph. You’ll get started by understanding the design goals and planning steps that should be undertaken to ensure successful deployments. In the next sections, you’ll be guided through setting up and deploying the Ceph cluster with the help of orchestration tools. This will allow you to witness Ceph’s scalability, erasure coding (data protective) mechanism, and automated data backup features on multiple servers. You’ll then discover more about the key areas of Ceph including BlueStore, erasure coding and cache tiering with the help of examples. Next, you’ll also learn some of the ways to export Ceph into non-native environments and understand some of the pitfalls that you may encounter. The book features a section on tuning that will take you through the process of optimizing both Ceph and its supporting infrastructure. You’ll also learn to develop applications, which use Librados and distributed computations with shared object classes. Toward the concluding chapters, you’ll learn to troubleshoot issues and handle various scenarios where Ceph is not likely to recover on its own. By the end of this book, you’ll be able to master storage management with Ceph and generate solutions for managing your infrastructure.
Table of Contents (18 chapters)
Free Chapter
1
Section 1: Planning And Deployment
6
Section 2: Operating and Tuning
13
Section 3: Troubleshooting and Recovery

The Ceph dashboard

Introduced in the Mimic release, Ceph now has an extremely useful dashboard based on the open ATTIC project. The dashboard in the initial Mimic release gives the Ceph operator the ability to monitor many aspects of their Ceph cluster that are needed on a daily basis. With preceding releases of Ceph, the dashboard has had further refinements and can now be used to manage some common tasks; over time, it is expected that the dashboard will continue to gain new features.

The dashboard is provided as a Ceph Mgr module and is included along with any dependencies in the standard Ceph installation. That means that all that is required to start using the Ceph dashboard is to simply enable the mgr module:

sudo ceph mgr module enable dashboard

SSL either needs to be disabled or a SSL certificate needs to be configured. Luckily, Ceph has a simple one-liner to get you started...