Book Image

Learning Ceph

By : Karan Singh
Book Image

Learning Ceph

By: Karan Singh

Overview of this book

<p>Ceph is an open source, software-defined storage solution, which runs on commodity hardware to provide exabyte-level scalability. It is well known to be a highly reliable storage system that has no single point of failure.</p> <p>This book will give you all the skills you need to plan, deploy, and effectively manage your Ceph cluster, guiding you through an overview of Ceph's technology, architecture, and components. With a step-by-step, tutorial-style explanation of the deployment of each Ceph component, the book will take you through Ceph storage provisioning and integration with OpenStack.</p> <p>You will then discover how to deploy and set up your Ceph cluster, discovering the various components and why we need them. This book takes you from a basic level of knowledge in Ceph to an expert understanding of its most advanced features.</p>
Table of Contents (18 chapters)
Learning Ceph
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

HDFS


HDFS is a distributed scalable filesystem written in Java for the Hadoop framework. HDFS is not a fully POSIX-compliant filesystem and does not support block storage, thus making it less usable than Ceph. The reliability of HDFS is a question for discussion as it's not a highly available filesystem. The single NameNode in HDFS is the primary reason for its single point of failure and performance bottleneck problems. It's more suitable to store a small quantity of big files rather than both small and big files.