QoS Management in Cloud@Home Infrastructures

Cloud is strongly emerging as the new deal of distributed computing. One of the reason behind the Cloud success is its business/commercial-oriented nature, proof of its effectiveness and applicability to real problems. There are actually a lot of open-private Cloud infrastructures aiming at providing dynamic-on demand resource provisioning according to the IAAS paradigm. To this purpose they usually apply a best effort policy, without taking into account service level agreements (SLA) and related quality of service (QoS) requirements. In such a context, the main goal of Cloud@Home is to implement a volunteer-Cloud paradigm which allows to aggregate Cloud infrastructure providers. In this work we specifically focus on SLA-QoS aspects, describing how to provide SLA based QoS guarantees through Cloud@Home on top of non-QoS oriented Cloud Providers. Aim of the paper is to demonstrate how Cloud@Home can fulfil such goal, providing and specifying the architecture, the algorithms and the components that implement SLA-QoS management features.