Struggling with AWS EC2 instance optimization? Learn how AWS Trusted Advisor and AWS Compute Optimizer can help right-size your instances for better performance and cost savings. When a company migrates to AWS Cloud, determining whether Amazon EC2 instances are properly sized and typed is crucial for optimizing performance and costs.
Table of Contents
Question
A company recently migrated to the AWS cloud and needs to determine if its newly imported Amazon EC2 instances are properly sized and typed.
A. AWS Auto Scaling
B. AWS Control Tower
C. AWS Trusted Advisor
D. AWS Compute Optimizer
E. Amazon Forecast
Answer
C. AWS Trusted Advisor
D. AWS Compute Optimizer
Explanation
AWS Trusted Advisor provides best practice recommendations and can help identify underutilized or idle EC2 instances, suggesting ways to reduce costs and improve performance. AWS Compute Optimizer analyzes the configuration and utilization metrics of EC2 instances and delivers recommendations for optimal instance types, sizes, and configurations.
AWS Trusted Advisor
AWS Trusted Advisor provides recommendations across multiple categories, including cost optimization, performance, security, fault tolerance, and service limits. For EC2 instance optimization, it specifically helps by:
- Identifying underutilized resources such as idle or low-utilization EC2 instances.
- Recommending rightsizing or terminating underused resources to reduce costs.
- Highlighting opportunities to switch to Reserved Instances or Spot Instances for further savings.
Trusted Advisor is ideal for organizations looking for high-level guidance on architectural best practices, including cost management across various AWS services.
AWS Compute Optimizer
AWS Compute Optimizer uses machine learning to analyze historical utilization data from Amazon CloudWatch. It provides detailed recommendations tailored to compute resources like EC2 instances, Auto Scaling groups, Amazon EBS volumes, and Lambda functions. Key features include:
- Identifying over-provisioned (underutilized) or under-provisioned (overloaded) EC2 instances.
- Offering up to three alternative instance types with projected cost savings and performance impacts.
- Providing insights into CPU, memory, disk I/O, and network utilization metrics.
Compute Optimizer focuses on maximizing compute efficiency while minimizing costs, making it an excellent tool for detailed resource-specific optimizations.
Why Other Options Are Incorrect
A. AWS Auto Scaling: While Auto Scaling adjusts the number of running instances based on demand, it does not evaluate whether existing instances are properly sized or typed.
B. AWS Control Tower: This service is designed for governance and compliance in multi-account setups and does not provide insights into instance sizing or optimization.
E. Amazon Forecast: This tool is used for time-series forecasting (e.g., sales predictions) and is unrelated to EC2 instance management.
How These Tools Complement Each Other
While both tools aim to optimize resources:
- Trusted Advisor provides broad recommendations across multiple AWS services.
- Compute Optimizer offers deeper insights specifically into compute resource configurations.
Using both together ensures comprehensive optimization of your EC2 environment.
By leveraging these tools effectively, organizations can ensure their EC2 instances are appropriately sized and configured for optimal performance and cost efficiency.
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