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> resize ec2 instance cpu count
resize ec2 instance cpu count
Pre-Resizing Considerations
Review the current instance type and CPU count.
Determine the desired instance type and CPU count.
Back up any important data or create an AMI of the instance.
Stopping the Instance
Log in to the AWS Management Console.
Navigate to the EC2 Dashboard.
Select the instance you want to resize.
Click on the "Instance State" dropdown.
Choose "Stop Instances" and confirm the action.
Wait until the instance status changes to "stopped."
Modifying the Instance Type
With the instance still selected, click on the "Actions" dropdown.
Hover over "Instance Settings" and select "Change Instance Type."
Choose the new instance type with the desired CPU count.
Review the pricing and specifications of the new instance type.
Click "Update" to apply the changes.
Starting the Instance
After modifying the instance type, click on the "Instance State" dropdown again.
Select "Start Instances" to start the instance with the new CPU count.
Wait for the instance status to change to "running."
Post-Resizing Verification
Check the instance's CPU count in the EC2 Dashboard.
Verify that applications and services are running correctly.
Monitor performance metrics to ensure the new instance type meets your needs.
Update any documentation or system architecture diagrams to reflect the changes.
Troubleshooting
If the instance fails to start, review the AWS Console for error messages.
Check the instance status checks for any issues.
Consult AWS documentation or support if needed.
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