When Disaster Walks-in: How AWS Elastic Disaster Recovery Ensures Business Continuity in the Cloud

Nitish Kumar

In today’s cutting-edge digital world, data is the backbone of businesses. Organizations depend heavily on the information they collect and store, from financial records to customer data. As a result, businesses must have a disaster recovery plan in place to make sure that their data is safe and secure when a disaster hits. This is where Elastic Disaster Recovery comes in – a sturdy service that assists organizations to recover their data efficiently and quickly.

What is AWS Elastic Disaster Recovery?


AWS Elastic Disaster Recovery is a service that helps businesses recover from disasters such as hardware failures, natural disasters, cyberattacks, and more. It is a comprehensive solution that includes backup, recovery, and replication features to ensure that businesses can get back up and running as quickly as possible.

How does it work?

  • Set up Elastic Disaster Recovery on your source servers for secure data replication to a staging area subnet in your selected AWS Region, reducing costs with minimal compute resources and affordable storage.
  • Test implementation with non-disruptive drills and monitor ongoing replication.
  • Launch recovery instances on AWS within minutes for application recovery, and choose to keep them there or initiate data replication back to your primary site.
  • Failback to your primary site whenever ready.


Why is it important?

Disasters hit are unpredictable, and without a disaster recovery plan, businesses risk losing crucial data and incurring remarkable downtime. This can result in reduced productivity, revenue loss, and damage to the organization’s reputation. Elastic Disaster Recovery ensures that businesses can recover from disasters fastly and efficiently, reducing the impact of any disruptions.



A short tour of AWS Elastic Disaster Recovery’s advantages is provided below:

  • Reduces downtime: Elastic Disaster Recovery makes it possible for businesses to recover swiftly from disasters, reducing downtime and allowing for operations to resume as usual.
  • Reduces data loss: Constant replication and backup make it possible for organizations to obtain the most recent information while also reducing data loss.
  • Simple to use: Elastic Disaster Recovery is simple to set up and use, making it a perfect solution for businesses irrespective of their sizes.
  • Scalable:  The service’s ability to grow with a company’s demands makes it simple for them to adapt their disaster recovery plan.
  • Cost-effective: Elastic Disaster Recovery is a cost-effective solution that helps businesses save money on pricy infrastructure and technology.


Use cases based on the scenarios:

AWS Elastic Disaster Recovery is the ultimate solution for industries and businesses of all sizes. The service has the following use cases:

  • Manufacturing: Downtime can lead to decreased production, missed deadlines, and higher expenses in the industrial sector. Manufacturers may benefit greatly from elastic disaster recovery by having their IT systems and data recovered swiftly, which will have a positive influence on their ability to do business.
  • Education: Downtime can disrupt classrooms and make it difficult for students and teachers to access vital systems and data in the educational sector. In the event of a disaster, Elastic Disaster Recovery may assist educational institutions in maintaining access to their systems and data, ensuring that instruction is not interrupted.
  • Government: To offer services to citizens, administer vital infrastructure, and maintain public safety, government agencies rely on IT systems. In the case of a disaster, elastic disaster recovery can assist government organizations in quickly recovering their systems and data, minimizing the impact on their capacity to provide public services.
  • Healthcare: Providers of healthcare handle sensitive patient data that needs to be safeguarded at all costs. Elastic Disaster Recovery makes it possible for healthcare organizations to quickly and effectively recover their data, lowering the risk of data breaches and providing that patient treatment is not interrupted.
  • Financial Services: Businesses in the financial sector are subject to stringent regulatory obligations and must ensure that their data is constantly accessible. These companies use elastic disaster recovery to help them comply with regulations and safeguard their data.




You require access to the AWS Management Console and an AWS account before you can install AWS Elastic Disaster Recovery. To replicate data from and to a destination server, you also need a source server.


How to Implement Elastic Disaster Recovery?


The procedure of putting AWS Elastic Disaster Recovery into action is simple. Businesses must first decide on their recovery goals and identify the information and software that are essential to their operations. Then, customers may pick a service provider with the necessary characteristics, set up the service by establishing backup and replication settings, and start using it. It’s crucial to routinely test the disaster recovery strategy to make sure everything is going according to plan.


Security in Elastic Disaster Recovery:


Security is one of the top priorities in Elastic Disaster Recovery. AWS provides several security features, including encryption of data both at rest and in transit, AWS Identity and Access Management (IAM) for access control, and network isolation through Amazon Virtual Private Cloud (VPC). It is of utmost importance to configure security settings correctly to ensure that your data is secure.


Monitoring of Elastic Disaster Recovery:


To validate that your disaster recovery plan is working efficiently, monitoring is pivotal. AWS Elastic Disaster Recovery provides real-time monitoring of replication and recovery events through Amazon CloudWatch. You can use CloudWatch metrics to identify and troubleshoot issues quickly.




Despite all precautions, issues may arise while implementing Elastic Disaster Recovery. AWS provides detailed documentation and troubleshooting guides (LINK) to help you diagnose and resolve issues. You can also contact AWS Support for assistance in resolving any issues that you may find.


What are the default AWS services installed by AWS Elastic Disaster Recovery when launching a drill or recovery instance?


To guarantee a smooth procedure when creating a drill or recovery instance, it’s crucial to know which AWS services are deployed automatically. AWS Elastic Disaster Recovery (AWS DRS) includes automated installation of EC2Config. Following installation, EC2Config will immediately set up the SSM EC2 Configuration Service. Note that CloudWatch, AWS Powershell, or CLI are not installed by default. By combining the AWS DRS APIs with the AWS APIs, you can still deploy them. You can quickly find the EC2 instance IDs of the machines by using the AWS DRS APIs, and you can enable extensive monitoring by using the AWS API/CLI. As an alternative, you may decide to just use the AWS API depending on the tags connected to the machine. Another approach is to do so from the post-launch script.


Overall, AWS DRS ensures that the necessary services are installed during the launch process, giving you peace of mind that your disaster recovery plan is ready to go.


Is EC2 capacity reserved for recovery via AWS Elastic Disaster Recovery (DRS)?


Whether or not EC2 capacity will be reserved for recovery purposes while utilizing AWS Elastic Disaster Recovery is a general worry. Initially, Amazon EC2 On-Demand pools are used by AWS Elastic Disaster Recovery. This implies that DRS will automatically try to scale up the instance several times until an available instance type is located if a certain Amazon EC2 instance type is not readily accessible to support your recovery. However, instances might not always be accessible in the worst-case scenario.


You may decide to buy EC2 Capacity Reservations in order to guarantee the availability of the necessary instance types for your most important applications. By using launch templates, you will be able to specify with precision the apps you wish to use EC2 Capacity Reservations for. With the help of this program, you can be confident in your disaster recovery plan knowing that you will have the necessary resources accessible when you need them most.


In order to ensure that your essential applications have the resources they need to recover from a disaster, AWS Elastic Disaster Recovery primarily gives flexibility in terms of EC2 capacity and offers the option to acquire EC2 Capacity Reservations.



Elastic Disaster Recovery is a sturdy service that assists enterprises to recover from disaster efficiently and fastly. By using backup, recovery, and replication features, businesses can reduce downtime, reduce data loss, and ensure that operations can resume as soon as possible. By implementing Elastic Disaster Recovery, businesses can preserve their vital data and ensure that they are ready for any eventuality.

About Author

Nitish Kumar is a Technical Content Writer and an AWS Certified Cloud Practitioner. He is passionate about creating quality content with eminent enthusiasm. He loves exploring & learning cutting-edge technologies.

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