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Learning Ceph

You're reading from Learning Ceph Unifed, scalable, and reliable open source storage solution

Product type Paperback

Published in Oct 2017

Publisher

ISBN-13 9781787127913

Length 340 pages

Edition 2nd Edition

Languages

C++

Tools

Ceph

Concepts

Distributed Computing

Authors (4):

Karan Singh

Bryan Stillwell

Anthony D'Atri

Vaibhav Bhembre

View More author details

Table of Contents (12) Chapters

Preface

1. Introducing Ceph Storage FREE CHAPTER

2. Ceph Components and Services

3. Hardware and Network Selection

4. Planning Your Deployment

5. Deploying a Virtual Sandbox Cluster

6. Operations and Maintenance

7. Monitoring Ceph

8. Ceph Architecture: Under the Hood

9. Storage Provisioning with Ceph

10. Integrating Ceph with OpenStack

11. Performance and Stability Tuning

The Ceph Filesystem (CephFS)

The Ceph Filesystem is also known as CephFS. It is a POSIX-compliant distributed filesystem built upon the RADOS layer. In order to provision CephFS filesystem storage, we need at least one MetaData Server (MDS) instance running alongside the rest of the Ceph cluster. In order to demonstrate mounting and using a CephFS filesystem we will again use the virtual sandbox cluster we created in Chapter 5, Deploying a Virtual Sandbox Cluster. We will demonstrate two different ways of using the filesystem:

Mounting using the kernel driver
Mounting using the FUSE user-space driver

Let's start by first spinning up a new virtual machine for our MDS. This process should now be familiar given how we spun up MON, OSD and Client virtual machines in Chapter 5, Deploying a Virtual Sandbox Cluster. First let's check whether our sandbox cluster is running or not. If not, let's start it up:

$ vagrant status
Current machine states:
client0 poweroff (virtualbox)
mon0 poweroff (virtualbox...

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Authors (4)

D'Atri

D'Atri

Anthony D'Atri's career in system administration spans from laptops to vector supercomputers. He has brought his passion for fleet management and server components to bear on a holistic yet, detailed approach to deployment and operations. His experience with architecture, operation, and troubleshooting of NetApp, ZFS, SVM, and other storage systems dovetailed neatly into Ceph. Anthony worked for three years at Cisco using Ceph as a petabyte-scale object and block backend to multiple OpenStack clouds. Now helping deliver awesome storage to droplet customers of DigitalOcean, Anthony aims to help the growing community build success with Ceph.

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Bhembre

Bhembre

Vaibhav Bhembre is a systems programmer working currently as a technical lead for cloud storage products at DigitalOcean. He holds a bachelor's degree in computer engineering from the University of Mumbai and a master's degree in computer science from the State University of New York in Buffalo. Before joining DigitalOcean, Vaibhav wore multiple hats and lead the backend engineering and reliability engineering teams at Sailthru Inc. From helping to scale dynamically generated campaign sends to over million users at a time, to architecting a cloud-scale compute and storage platform, Vaibhav has years of experience writing software across all layers of the stack. During his time as a student, Vaibhav co-published a novel graph algorithm that optimally computed closeness and betweenness in an incrementally updating social network. He also made changes to a highly available distributed file-system built on top of iRODs data management framework as his master's project. This system, that was actively used across more than 10+ educational institutions live, was his foray into large-scale distributed storage and his transition into using Ceph professionally was only natural.

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Bryan Stillwell

Bryan Stillwell

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Karan Singh

Karan Singh

Karan is an IT expert and passionate tech enthusiast living with his beautiful wife Monika in Finland. He holds Honours degree in Bachelor of Computer Science and a Master degree in System Engineering from BITS, Pilani. Apart from this, he is a certified professional for technologies like OpenStack, NetApp and Oracle Solaris. Karan is currently working as a System Specialist of Storage and Cloud Platform for CSC - IT Center for Science Ltd. focusing all his energies on providing IaaS cloud solutions based on OpenStack and Ceph and building economic multi-petabyte storage system using Ceph. Karan possesses a rich skill set and working experience of a variety of cloud technologies. He devotes a part of his time to R&D and learning technologies. He is also the author of the very first book on Ceph titled Learning Ceph, published in 2014. Karan possesses extensive system administration skills and has excellent working experience on a variety of Unix environments, backup, enterprise storage systems, and cloud platforms. When not working on Ceph and OpenStack, Karan can be found working with Configuration management, containers and devops related tools. He loves writing about technologies and is an avid blogger. You can reach him on Twitter.

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