Towards Transparent Personal Content Storage in Multi-service Access Networks
نویسندگان
چکیده
Anytime, anywhere and anyhow access to personalized services requires the complete decoupling of devices for accessing the service and the supporting personal data storage. When deploying such transparent personalized services, an important question that needs answering is where to install the storage servers. In this respect, this paper considers the deployment of a personal content storage service in multi-service access networks. The storage server placement problem is formulated as a binary integer linear programming (BILP) problem and a heuristic storage server placement algorithm (SSPA) is presented and evaluated. First it is assumed that servers do not fail. Consequently, the problem formulation is extended to include replication and striping and both BILP and heuristic methods are modified to cope with the additional constraints. The extended SSPA heuristic is used to analyze several resilience and striping scenarios. It is shown that the SSPA produces close to optimal results and is very efficient for optimizing server placement in personal content storage deployments.
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