What should the Administrator do to receive email alerts before low storage space affects EC2 instance performance?
Use built-in Amazon CloudWatch metrics, and configure CloudWatch alarms and an Amazon SNS topic for email notifications
Use AWS CloudTrail logs and configure the trail to send notifications to an Amazon SNS topic
Use the Amazon CloudWatch agent to send disk space metrics, then set up CloudWatch alarms using an Amazon SNS topic
Use AWS Trusted Advisor and enable email notification alerts for EC2 disk space
Explanations:
Amazon CloudWatch does not provide built-in metrics for EBS disk space on Windows-based EC2 instances. CloudWatch only tracks instance-level metrics by default, not specific file system storage metrics.
AWS CloudTrail logs are for auditing API activity, not for monitoring resource utilization or disk space on EC2 instances. This option would not help in monitoring EBS disk space.
The Amazon CloudWatch agent can be installed on Windows EC2 instances to send disk space usage metrics. CloudWatch alarms can then be set up to monitor these metrics and trigger notifications via SNS when disk space is low.
AWS Trusted Advisor provides general best practice checks and recommendations, but it does not specifically monitor or alert on disk space usage for EC2 instances, making it unsuitable for this requirement.
I structure that the answer is:
Use the Amazon CloudWatch agent to send disk space metrics, then set up CloudWatch alarms using an Amazon SNS topic