Learning Ceph, Second Edition will give you all the skills you need to plan, deploy, and effectively manage Ceph clusters. You will begin with an introduction to Ceph use cases and components, then progress through advice on selecting and planning servers and components. We then cover a number of important decisions to make before provisioning your servers and clusters and walk through hands-on deployment of a fully functional virtualized sandbox cluster. A wide range of common (and not so common) management tasks are explored. A discussion of monitoring is followed by a deep dive into the inner workings of Ceph, a selection of topics related to provisioning storage, and an overview of Ceph's role as an OpenStack storage solution. Rounding out our chapters is advice on benchmarking and tuning for performance and stability.
By the end of the book you will have learned to deploy and use Ceph effectively for your data storage requirements.
Chapter 1, Introducing Ceph Storage, here we explore Ceph’s role as storage needs evolve and embrace cloud computing. Also covered are Ceph’s release cycle and history including changes since the first edition of Learning Ceph .
Chapter 2, Ceph Components and Services, a tour through Ceph’s major components and the services they implement. Examples of each service’s use cases are given.
Chapter 3, Hardware and Network Selection, is a comprehensive journey through the maze of hardware choices that one faces when provisioning Ceph infrastructure. While Ceph is highly adaptable to diverse server components, prudent planning can help you optimize your choices for today and tomorrow.
Chapter 4, Planning Your Deployment, is the software complement to Chapter 3, Hardware and Network Selection. We guide the reader through deployment and provisioning decisions for both Ceph and the underlying operating system.
Chapter 5, Deploying a Virtual Sandbox Cluster, is an automated, fully functional Ceph deployment on virtual machines. This provides opportunities for hands-on experience within minutes.
Chapter 6, Ceph Operations and Maintenance, is a deep and wide inventory of day to day operations. We cover management of Ceph topologies, services, and configuration settings as well as, maintenance and debugging.
Chapter 7, Monitoring Ceph, a comprehensive collection of commands, practices, and dashboard software to help keep a close eye on the health of Ceph clusters.
Chapter 8, Ceph Architecture: Under the Hood, deep-dives into the inner workings of Ceph with low-level architecture, processes, and data flow.
Chapter 9, Storage Provisioning with Ceph, here we practice the client side of provisioning and managing each of Ceph’s major services.
Chapter 10, Integrating Ceph with OpenStack, explores the components of the OpenStack cloud infrastructure platform and how they can exploit Ceph for resilient and scalable storage.
Chapter 11, Performance and Stability Tuning, provides a collection of Ceph, networks, filesystems, and underlying operating system settings to optimize cluster performance and stability. Benchmarking of cluster performance is also explored.
A basic knowledge of storage terms, server hardware, and networking will help digest the wealth of information provided. The virtual deployment sandbox was tested on macOS with specified software versions. It should work readily on Linux or other desktop operating systems. While execution of the virtual deployment is valuable, it is not strictly required to reap the benefits of this book.
A basic knowledge of GNU/Linux, storage systems, and server components is assumed. If you have no experience with software-defined storage solutions and Ceph, but are eager to learn about them, this is the book for you. Those already managing Ceph deployments will also find value in the breadth and depth of the material presented.
In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning. Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Create a new user for JIRA in the database and grant the user access to the jiradb database that we just created using the following command:" A block of code is set as follows:
glance-api.conf: [glance_store] stores = rbd default_store = rbd rbd_store_pool = images rbd_store_user = glance-user rbd_store_ceph_conf = /etc/ceph/ceph.conf rbd_store_chunk_size = 8
Any command-line input or output is written as follows:
instance$ ls /dev/vd*
/dev/vda /dev/vda1 /dev/vdb
instance$ lsblkNew terms and important words are shown in bold.
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