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Asked: 2024-09-27T16:00:20+05:30 In:

how to change instance type in aws

I’m currently facing an issue with my AWS instance and need some guidance on how to change its type. I originally launched my instance using the t2.micro type for testing purposes, but now that my application has grown and the workload has increased, I’m finding that the performance is lacking. I’ve heard about larger instance types like t3 or m5 that could better handle the load, but I’m not sure how to make the switch without causing downtime or disrupting my services.

Could someone walk me through the process of changing the instance type? Specifically, I’m concerned about what steps I need to take to prepare for this change and whether I need to stop the instance first. Also, will changing the instance type affect my data or any of my configurations? I want to ensure that everything remains intact. Lastly, if I do change to a different instance type, are there any additional considerations or costs I should be aware of? I’d really appreciate any detailed instructions or best practices on how to approach this. Thank you in advance for your help!

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    2 Answers

    1. Changing Instance Type in AWS

      So, you want to change your AWS instance type? No worries, it’s not as scary as it sounds! Just follow these simple steps:

      1. Log in to your AWS account – Go to the AWS console and sign in like you always do.
      2. Find the EC2 Dashboard – Look for “EC2” in your services list; it’s usually towards the top-left corner. Click on it!
      3. Select Instances – In the left sidebar, click on “Instances.” Here you’ll see all your running instances (like your virtual computers).
      4. Choose the Instance – Click on the instance you want to change. Make sure it’s the right one! You don’t want to mess with the wrong instance, right?
      5. Stop the Instance – You can’t change the type while it’s running. Click on “Instance State” at the top, and select “Stop.” Wait a tiny bit until it’s stopped.
      6. Change the Instance Type – With your instance selected, click on “Actions” → “Instance Settings” → “Change Instance Type.”
      7. Pick a New Type – Now, you’ll see a bunch of types! Choose the one you want—hopefully, one that’s better or cheaper!
      8. Review and Apply – Check everything looks okay and then click the button to apply your changes.
      9. Start Your Instance Again – Go back to “Instance State” and hit “Start.” Your instance will start up with the new type!

      And that’s pretty much it! Just remember that changing instance types might take a little time and could temporary affect anything running on it. Don’t panic if it feels confusing at first—just take it step by step!

      Good luck!


    2. To change an EC2 instance type in AWS, the first step is to stop the instance you wish to modify. This can be accomplished via the AWS Management Console, AWS CLI, or SDKs. For the command line approach, you can use the AWS CLI command `aws ec2 stop-instances –instance-ids `. Ensure that you have the necessary permissions, as stopping an instance may result in data loss if you’re using instance store volumes. Be mindful of the instance’s state, and make sure you have backups of any non-persistent data before proceeding.

      Once the instance is stopped, you can then change the instance type. In the AWS Management Console, navigate to the EC2 Dashboard, select the instance, and click on the “Actions” dropdown, choosing “Instance Settings” followed by “Change Instance Type.” Select the desired instance type from the list that is compatible with your instance’s configuration and click “Apply.” If using the CLI, execute the command `aws ec2 modify-instance-attribute –instance-id –instance-type “{\”Value\”: \”\”}”`. After the change, start your instance back up using `aws ec2 start-instances –instance-ids `, and verify that the type has been updated correctly by querying the instance details or by checking the EC2 Dashboard.

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