Economics of Resilient Cloud Services

TL;DR

This paper introduces SCIT, a cyber resilience system for cloud services that enhances availability, security, and performance through shared redundancy and isolation, and discusses cost-effective serverless architectures using AWS Lambda.

Contribution

It presents the SCIT system for resilient cloud services and explores serverless architectures to reduce operational costs in cloud environments.

Findings

SCIT improves resilience and cost efficiency in cloud systems.

Serverless architectures with AWS Lambda significantly lower operational costs.

Shared redundancy and isolation enhance service availability and security.

Abstract

Computer systems today must meet and maintain service availability, performance, and security requirements. Each of these demands requires redundancy and some form of isolation. When service requirements are implemented separately, the system architecture cannot easily share common components of redundancy and isolation. We will present these service traits collectively as cyber resilience with a system called Self Cleansing Intrusion Tolerance or SCIT. Further, we will demonstrate that SCIT provides an effective resilient cloud implementation making cost effective utilization of cloud excess capacity and economies of scale. Lastly, we will introduce the notion of serverless applications utilizing AWS Lambda and how a stateless architecture can drastically reduce operational costs by utilizing cloud function services.