You're reading from AWS for System Administrators Build, automate, and manage your infrastructure on the most popular cloud platform – AWS

Product type Paperback

Published in Feb 2021

Publisher Packt

ISBN-13 9781800201538

Length 388 pages

Edition 1st Edition

Tools

AWS

Concepts

System Administration

Author (1):

Prashant Lakhera

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Table of Contents (18) Chapters

Preface

1. Section 1: AWS Services and Tools

2. Chapter 1: Setting Up the AWS Environment FREE CHAPTER

3. Chapter 2: Protecting Your AWS Account Using IAM

4. Section 2: Building the Infrastructure

5. Chapter 3: Creating a Data Center in the Cloud Using VPC

6. Chapter 4: Scalable Compute Capacity in the Cloud via EC2

7. Section 3: Adding Scalability and Elasticity to the Infrastructure

8. Chapter 5: Increasing an Application's Fault Tolerance with Elastic Load Balancing

9. Chapter 6: Increasing Application Performance Using AWS Auto Scaling

10. Chapter 7: Creating a Relational Database in the Cloud using AWS Relational Database Service (RDS)

11. Section 4: The Monitoring, Metrics, and Backup Layers

12. Chapter 8: Monitoring AWS Services Using CloudWatch and SNS

13. Chapter 9: Centralizing Logs for Analysis

14. Chapter 10: Centralizing Cloud Backup Solution

15. Chapter 11: AWS Disaster Recovery Solutions

16. Chapter 12: AWS Tips and Tricks

17. Other Books You May Enjoy

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Discussing the various DR solutions offered by AWS

Before we discuss the various DR solutions offered by AWS, we first need to define the business impact analysis, recovery time objective (RTO), and recovery point objective (RPO) for an application and fit a DR solution to that objective. We already discussed the RTO and RPO in Chapter 10, Centralizing Cloud Backup Solution.

AWS offers four levels of DR support:

Backup and restore
Pilot light
Warm standby in AWS
Hot standby (with multi-site)

We will cover all these in detail in the following sections.

Backup and restore

This solution suits less critical applications where RTO/RPO is measured in hours. This is one of the most common solutions implemented by many AWS customers, where they store their application backup to S3 for short-term storage, and for long-term storage, to Glacier. Now compare this solution to a traditional on-premise environment where data is backed up to tape and sent off-site...