Efficient Content Sharing Using Multi-Cloud Storage with Selective RAID-like Chunk Retention Control Hyuga Nakazawa, Kengo Koyama, Shinji Sugawara
Department of Information and Communication Systems Engineering, Faculty of Engineering, Chiba Institute of Technology
Abstract
Recently, not a few cloud-based content sharing methods to avoid a total system failure, data breach, or vendor-lock-in has been proposed by bundling storage services of multiple cloud vendors using a content broker system. We have proposed an efficient multi-cloud based content sharing method that added an effect to shorten the shared content^s upload and download times by dividing each content item to be deposited at cloud vendors into chunks and redundantly distributing them into each cloud storage just like RAID systems. In this paper, we newly propose a method to reduce the management cost, and at the same time, suppress the damage at the time of a system failure by adding the function of selecting the RAID level per each content item depending on its usefulness. In addition, the effectiveness of the proposed method is evaluated by using computer simulations.
