An auto-scaling mechanism for cloud-based multimedia storage systems: a fuzzy-based elastic controller

Cloud computing is a new technology that is increasing in popularity day-by-day. One of the reasons for its popularity can be its elasticity feature. In other words, cloud computing considers the consumer’s resource capacity to be infinite, where the consumer can obtain the resources on-demand and increase or decrease the number of resources. Although various solutions for elasticity management have been developed so far, more work is needed to manage the elasticity of the cloud-based multimedia storage systems more effectively. Accordingly, this paper presents the Observe–Orient–Decide–Act (OODA) loop to improve the resource elasticity in cloud-based multimedia storage systems. In the proposed solution, elasticity management is performed using the OODA loop and fuzzy logic theory. Our simulation results demonstrate that the proposed solution reduces the read time, write time, response time by 7.2%, 6.9%, and 8.4%, respectively, compared with existing elastic cloud-based storage mechanisms.