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Ceph Cookbook

By : Karan Singh, Hackett, Umrao

4.2 (9)

Ceph Cookbook

4.2 (9)

By: Karan Singh, Hackett, Umrao

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.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Sections

Conventions

Reader feedback

Customer support

Free Chapter

Ceph – Introduction and Beyond

Ceph – Introduction and Beyond

Introduction

Ceph – the beginning of a new era

RAID – the end of an era

Ceph – the architectural overview

Planning a Ceph deployment

Setting up a virtual infrastructure

Installing and configuring Ceph

Scaling up your Ceph cluster

Using the Ceph cluster with a hands-on approach

Working with Ceph Block Device

Working with Ceph Block Device

Introduction

Configuring Ceph client

Creating Ceph Block Device

Mapping Ceph Block Device

Resizing Ceph RBD

Working with RBD snapshots

Working with RBD clones

Disaster recovery replication using RBD mirroring

Configuring pools for RBD mirroring with one way replication

Configuring image mirroring

Configuring two-way mirroring

Recovering from a disaster!

Working with Ceph and OpenStack

Working with Ceph and OpenStack

Introduction

Ceph – the best match for OpenStack

Setting up OpenStack

Configuring OpenStack as Ceph clients

Configuring Glance for Ceph backend

Configuring Cinder for Ceph backend

Configuring Nova to boot instances from Ceph RBD

Configuring Nova to attach Ceph RBD

Working with Ceph Object Storage

Working with Ceph Object Storage

Introduction

Understanding Ceph object storage

RADOS Gateway standard setup, installation, and configuration

Creating the radosgw user

Accessing the Ceph object storage using S3 API

Accessing the Ceph object storage using the Swift API

Integrating RADOS Gateway with OpenStack Keystone

Integrating RADOS Gateway with Hadoop S3A plugin

Working with Ceph Object Storage Multi-Site v2

Working with Ceph Object Storage Multi-Site v2

Introduction

Functional changes from Hammer federated configuration

RGW multi-site v2 requirement

Installing the Ceph RGW multi-site v2 environment

Configuring Ceph RGW multi-site v2

Testing user, bucket, and object sync between master and secondary sites

Working with the Ceph Filesystem

Working with the Ceph Filesystem

Introduction

Understanding the Ceph Filesystem and MDS

Deploying Ceph MDS

Accessing Ceph FS through kernel driver

Accessing Ceph FS through FUSE client

Exporting the Ceph Filesystem as NFS

Ceph FS – a drop-in replacement for HDFS

Monitoring Ceph Clusters

Monitoring Ceph Clusters

Introduction

Monitoring Ceph clusters – the classic way

Introducing Ceph Metrics and Grafana

Installing and configuring Ceph Metrics with the Grafana dashboard

Monitoring Ceph clusters with Ceph Metrics with the Grafana dashboard

Operating and Managing a Ceph Cluster

Operating and Managing a Ceph Cluster

Introduction

Understanding Ceph service management

Managing the cluster configuration file

Running Ceph with systemd

Scale-up versus scale-out

Scaling out your Ceph cluster

Scaling down your Ceph cluster

Replacing a failed disk in the Ceph cluster

Upgrading your Ceph cluster

Maintaining a Ceph cluster

Ceph under the Hood

Ceph under the Hood

Introduction

Ceph scalability and high availability

Understanding the CRUSH mechanism

CRUSH map internals

CRUSH tunables

Ceph cluster map

High availability monitors

Ceph authentication and authorization

I/O path from a Ceph client to a Ceph cluster

Ceph Placement Group

Placement Group states

Creating Ceph pools on specific OSDs

Production Planning and Performance Tuning for Ceph

Production Planning and Performance Tuning for Ceph

Introduction

The dynamics of capacity, performance, and cost

Choosing hardware and software components for Ceph

Ceph recommendations and performance tuning

Ceph erasure-coding

Creating an erasure-coded pool

Ceph cache tiering

Creating a pool for cache tiering

Creating a cache tier

Configuring a cache tier

Testing a cache tier

Cache tiering – possible dangers in production environments

The Virtual Storage Manager for Ceph

The Virtual Storage Manager for Ceph

Introductionc

Understanding the VSM architecture

Setting up the VSM environment

Getting ready for VSM

Installing VSM

Creating a Ceph cluster using VSM

Exploring the VSM dashboard

Upgrading the Ceph cluster using VSM

VSM roadmap

VSM resources

More on Ceph

More on Ceph

Introduction

Disk performance baseline

Baseline network performance

Ceph rados bench

RADOS load-gen

Benchmarking the Ceph Block Device

Benchmarking Ceph RBD using FIO

Ceph admin socket

Using the ceph tell command

Ceph REST API

Profiling Ceph memory

The ceph-objectstore-tool

Using ceph-medic

Deploying the experimental Ceph BlueStore

An Introduction to Troubleshooting Ceph

An Introduction to Troubleshooting Ceph

Introduction

Initial troubleshooting and logging

Troubleshooting network issues

Troubleshooting monitors

Troubleshooting OSDs

Troubleshooting placement groups

Upgrading Your Ceph Cluster from Hammer to Jewel

Upgrading Your Ceph Cluster from Hammer to Jewel

Introduction

Upgrading your Ceph cluster from Hammer to Jewel

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Introduction

OpenStack is an open source software platform for building and managing public and private cloud infrastructure. It is being governed by an independent, non-profit foundation known as The OpenStack Foundation. It has the largest and the most active community, which is backed by technology giants such as HP, Red Hat, Dell-EMC, Cisco, IBM, Rackspace, and many more.

OpenStack's idea for a cloud is that it should be simple to implement and massively scalable.

OpenStack is considered as the cloud operating system where users are allowed to instantly deploy hundreds of virtual machines in an automated way. It also provides an efficient way of hassle-free management of these machines. OpenStack is known for its dynamic scale up, scale out, and distributed architecture capabilities, making your cloud environment robust and future-ready. OpenStack provides an enterprise...

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