Availability and reliability in the cloud: Amazon Web Services

Companies are increasingly moving applications to the public cloud to take advantage of lower initial and ongoing cost and reduce capital expenditures. However, high-profile efforts to spread fear, uncertainty, and doubt about the reliability of cloud infrastructure and availability of applications run in the cloud — particularly on Amazon Web Services (AWS) — have given some decision makers pause. To better understand the actual reliability of cloud infrastructure and the availability of applications run in the cloud as it directly compares to the availability and reliability of running workloads on-premise, Nucleus surveyed 198 AWS customers that reported moving existing workloads from on-premise to the cloud using AWS. Analysts found customers were able to reduce unplanned downtime by 32 percent and reduce planned downtime by 29 percent.