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)

Understanding the Ceph Filesystem and MDS

The Ceph Filesystem offers the POSIX-compliant distributed filesystem of any size that uses Ceph RADOS to store its data. To implement the Ceph Filesystem, you need a running Ceph storage cluster and at least one Ceph Metadata Server (MDS) to manage its metadata and keep it separated from data, which helps in reducing complexity and improves reliability. The following diagram depicts the architectural view of Ceph FS and its interfaces:

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The libcephfs libraries play an important role in supporting its multiple client implementations. It has the native Linux kernel driver support, and thus clients can use native filesystem mounting, for example, using the mount command. It has tight integration with SAMBA and support for CIFS and SMB. Ceph FS extends its support to Filesystem in USErspace (FUSE) using cephfuse modules. It also allows...