EC2 Instance Recovery with CloudWatch

• Use alarms on StatusCheckFailed_System to detect system failures.

• Instance Status – health of the VM.

• System Status – health of underlying hardware.

• Attached EBS Status – health of attached volumes.

• Automatically restores the same: private IP, public IP, Elastic IP, metadata, and placement group.

• Can send SNS notifications upon recovery.

Good to Know

• Alarms can be based on CloudWatch Logs Metric Filters.

• Enables triggering alerts from specific log patterns or extracted values.