Amazon EC2 Auto Scaling · Finder + guided fix
ASG Manual Optimization
Optimize
Right-size EC2 instances in Auto Scaling Groups based on actual utilization. CloudFix analyzes ASG metrics and recommends optimal instance types.
What happens, in order.
Finder · read-only
Finds the opportunity
Scans your connected accounts with a read-only role. It can see resource metadata and usage; it can’t change anything.
You
Review in Recommendations
It appears in your Recommendations view with what it would save.
Guided fix
You make the change
You apply it yourself, following the fix’s step-by-step instructions; the write-up below explains it.
Finder role
Read-only. It can see resource metadata and usage. It can’t change anything.
Fixer role
Not used here: this one is a guided fix, so the change is yours to make.
Saves by
The Finder optimizes ASG EC2 instances using AWS Compute Optimizer to find the optimal resource configurations. It focuses on retyping opportunities, including IaC-governed instances and those employing attribute-based type selections, recommending Graviton, AMD, and the latest generation instances.
Auto Scaling Groups (ASGs) are a powerful AWS feature that helps maintain application availability by automatically adjusting the number of EC2 instances. However, if not properly optimized, ASGs can lead to unnecessary costs. CloudFix’s EC2 Resize ASG Instances Finder/Fixer helps identify and implement cost-saving opportunities for your Auto Scaling Groups while maintaining performance.
Overview
The EC2 Resize ASG Instances Finder/Fixer analyzes your Auto Scaling Groups to identify instances that could be optimized for better cost efficiency. It leverages AWS Compute Optimizer recommendations to ensure all suggested changes maintain performance while reducing costs.
How It Works
The CloudFix Finder works read-only. It uses your cost and usage data and AWS Compute Optimizer recommendations to find EC2 instances in your Auto Scaling Groups that could move to a cheaper instance type without losing performance, and skips groups that are unsafe to change or that you have excluded. Each opportunity appears in your Recommendations with its estimated savings.
You review the recommendation, can raise a change ticket through the JIRA integration, make the instance type change in the group’s launch template yourself, and then verify performance after the change.
Benefits
- Typical cost savings of 10-15% on applicable ASGs
- Zero performance impact due to AWS validation
- Automated identification of optimization opportunities
- Safe implementation through manual verification
- Continuous optimization as new instance types become available
AWS Services Affected
Requirements
- AWS Compute Optimizer must be enabled
- ASGs must use launch templates (not launch configurations)
- ASGs with more complex configurations may not be eligible
Related Resources
- AWS Auto Scaling User Guide
- AWS Compute Optimizer User Guide
- AWS Blog: Cost Optimization with EC2 Auto Scaling
Ready to start saving on AWS? See how much you could cut from your cloud bill with a free cost optimization assessment, or explore CloudFix automated Finder/Fixers that eliminate waste across 30+ AWS services.
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