2.6.5. AWS Trusted Advisor

💡 First Principle: AWS Trusted Advisor provides real-time guidance to optimize your AWS infrastructure by identifying opportunities to save money, improve performance, enhance security, and increase fault tolerance.

AWS Trusted Advisor is an online tool that provides recommendations to help you follow AWS best practices. It inspects your AWS environment and provides recommendations in five categories.

Key Categories of AWS Trusted Advisor Checks:

• Cost Optimization: Identifies opportunities to save money by reducing idle or underutilized resources (e.g., underutilized EC2 instances).
• Performance: Recommends ways to improve the speed and responsiveness of your applications (e.g., using correct instance types).
• Security: Identifies security weaknesses and deviations from security best practices (e.g., open security groups, MFA disabled for root account).
• Fault Tolerance: Provides recommendations to improve the reliability and availability of your applications (e.g., Multi-AZ deployments for RDS).
• Service Limits: Alerts you when you are nearing service limits for various AWS services, helping prevent service interruptions.

Scenario: A company is concerned about its AWS bill, application performance, and overall security posture. They want to receive automated recommendations for improving their AWS setup without manually auditing all resources.

Reflection Question: How does AWS Trusted Advisor, by providing real-time guidance across cost optimization, performance, security, and fault tolerance, fundamentally help businesses optimize their AWS infrastructure and adhere to best practices?