AWS Trusted Advisor is a cloud optimization tool that inspects your AWS environment and provides real-time recommendations to help you follow AWS best practices. It is designed to help you increase performance, reduce costs, improve security, and ensure fault tolerance for your AWS resources.
Here are some key features and capabilities of AWS Trusted Advisor:
Cost Optimization:
- Identifies idle or underutilized resources that can be downsized or terminated to save costs.
- Provides recommendations on Reserved Instance purchase opportunities to reduce on-demand instance costs.
Performance:
- Analyzes your service limits and usage to help you provision resources optimally.
- Identifies over-utilized instances that may require scaling up or out for better performance.
Security:
- Checks for security vulnerabilities and deviations from AWS security best practices.
- Provides recommendations for enabling security features like AWS CloudTrail, AWS Config, and multi-factor authentication (MFA).
Fault Tolerance:
- Identifies resources that are not fault-tolerant or lack redundancy across multiple Availability Zones.
- Recommends architecture changes to improve fault tolerance and business continuity.
Service Limits:
- Monitors your service limits (e.g., EIPs, VPCs, EBS volumes) and alerts you when you are approaching the maximum allowed limits.
AWS Trusted Advisor categorizes its checks and recommendations into five categories: Cost Optimization, Performance, Security, Fault Tolerance, and Service Limits. Some of these checks are available with the AWS Basic Support plan, while others require a Business or Enterprise Support plan.
By following the recommendations provided by AWS Trusted Advisor, you can optimize your AWS environment, reduce costs, improve security posture, and ensure high availability and fault tolerance for your applications and workloads.