Do’s and Dont’s of an AWS Disaster Recovery Strategy
The majority of businesses are switching to AWS disaster recovery solution, for it is fast, secure, and reliable. The AWS cloud offers maximum flexibility that allows users to accomplish a faster recovery of the data and optimize resources during a disaster recovery (DR) event. Besides, users can also scale AWS infrastructure based on their requirements that ensure an all-time continuity in the system. Moreover, based on their requirement, users can choose between four AWS disaster recovery options that are:
- Backup and Restore
- Pilot Light
- Warm Standby
Though there are many other advantages of switching to AWS like these, several cloud customers still don’t know how to strategize their DR plans effectively and fail to make the most out of it. This is why in this article we have come up with the common Do’s and Don’ts of AWS disaster recovery strategy.
AWS Disaster Recovery Strategy: THE DO’S
#1: Using the Right Tools & Techniques
Backing up the data to one AWS region could be risky and might result in the loss of all your critical data if an outage happens to that site. Make sure, your data is backed up to multiple AWS regions. However, how frequently you back up your data depends upon the RTO and your preferred RPO. Let’s say yours is an eCommerce store, there will be a constant fluctuation in your database, and that you should opt for a low RPO. However, for relatively stationary data, going with a more intermittent fortification is recommended.
Since different applications are different in traits, users should try to define and execute application stacks or recovery groups. It will help them in sequencing the recovery of applications according to priority.
#2: Consistent Auditing of the Cloud Infra
With carefully planned DR strategies, you can make your business DR-ready for handling any emergency. Running a routine DR/Backup audit will ensure all the mission-critical data that you have on the AWS Infrastructure is safe & secure.
#3: Backing up Everything
Whether it is your IT infrastructure modules, data, or essential application settings back up all your assets instead of paying all your attention to backing up data only. Periodically copying your data backups on multiple AWS regions is highly recommended.
Some of the most reliable backup services provided by AWS are AWS Backup, Amazon S3, Amazon Glacier, AWS Storage Gateway, and CloudEndure that can be effectively used for disaster recovery. Among these, S3 is one of the most simple & reasonable storage services for disaster recovery.
#4: Testing of the DR Plan
Automating the DR plan makes your business disaster-proof. To maintain the health of your cloud infrastructure, try to identify the critical areas that are more prone to get affected during a disaster, and then try to automate DR/Backup tests for those areas. Through periodic testing, you can ensure all policies are well aligned.
AWS Disaster Recovery Strategy: THE DONT’S
#1: Postponing a Disaster Recovery Plan
You never know when a disaster hits your infrastructure and that a DR strategy in place will only make your business DR ready for the disaster. Consistently, testing the AWS architecture will only help you in keeping your data unharmed even when a disaster strikes. So, don’t just wait for a disaster to happen for backing up your system, do it proactively.
#2: Opting for a Single-Region Replication
In the worst outage scenario, even the AWS region where you have backed up your data may go through a disaster. This is why it is highly recommended to back up your data across multiple AWS regions. Opting for a single-region replication may not be called a good DR strategy.
The disasters are not biased and so can happen to any infrastructure whether your on-premise or AWS’s. Did you know, in 2017, S3, the Amazon storage service, suffered a major disaster due to a human error and the servers remained offline for up to 4 hours? Irrespective of whether AWS is called the master of cloud computing, you should follow the industry best practices and abide by the common do’s & don’ts to stay away from disaster ill-effects. Of course, you can hire a team of business continuity specialists and crisis management experts who can develop the DR plan for you. Or else if you don’t want to pay a huge capital, you can outsource the development of your DR plan to an AWS cloud partner who has years of experience in managing the crisis that too for different clients.
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