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Amazon Elastic Compute Cloud (EC2)

How is EC2 Health Determined?

The CloudStatus service reports EC2 health based on EC2's network availability and compute availability. A health status of Service Failure indicates intermittent network failures or an availability zone failure.

EC2 Metrics

  • Deployment Latency—the time it takes to start an m1.small instance, from the time startup is initiated to the time that the instance is available.

What is Service Health?

The health of an AWS service is an indicator of its current and recent quality of service. Health reflects the availability of a service and the performance of key service operations, invoked from both inside and outside the cloud. Service health is indicated on charts as:

  • Healthy—indicates full health and satisfactory performance
  • Issues—indicates partial health, instances of less than satisfactory performance, or both
  • Service Failure—indicates service not available, or poor health

Other Amazon Services



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