Economics of Resilient Cloud Services

Abstract

Today's computer systems 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 (SCIT). Further, we will demonstrate that SCIT provides an effective resilient cloud implementation making cost effective utilization of cloud's 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.

Performance evaluation of heterogeneous cloud functions

“…A detailed performance and cost comparison of traditional clouds with microservices and the AWS Lambda serverless architecture is presented in the work of Villamizar et al, using an enterprise application. Similarly, Wagner and Sood discuss the advantages of using cloud services and AWS Lambda for systems that require higher resilience. An interesting discussion of serverless paradigm is given in the work of McGrath et al, where the case studies are blogging and media management application.…”

Ubi-Flex-Cloud: ubiquitous flexible cloud computing: status quo and research imperatives

“…A core principle of today's cloud computing is ubiquity and availability, regardless of the underlying communication networks. However, if mission-critical and latency-sensitive constraints, as well as the quality of experience and resilient cloud service requirements [67] are not met, there is an economic loss. Therefore, a hybrid cloud architecture envisioned in [68] with software-defined intelligence, e.g.…”

Right Scaling for Right Pricing: A Case Study on Total Cost of Ownership Measurement for Cloud Migration

“…Research on serverless computing is at a very early stage of development and is primarily based on AWS Lambda [43]. While most of the research is focused on use cases, Lynn et al [43] report a small number of studies that report cost efficiencies resulting from serverless implementations [40,60,61]. Given the novelty of serverless computing, the novelty of serverless pricing models, emerging use cases, and the dearth of research on business value and serverless migration, this area would seem to be a fruitful area for research moving forward.…”