THE FEASIBILITY OF MOVING TERABYTE FILES BETWEEN CAMPUS AND CLOUD

摘要

Cloud/Grid computing is envisioned to be a predominantrncomputing model of the future. The movement of filesrnbetween cloud and client is intrinsic to this model. Withrnthe creation of ever expanding data sets, the sizes of filesrnhave increased dramatically. Consequently, terabyte filerntransfers are expected to be the “next big” Internet application.rnThis application is different from other Internet applicationsrnin that it requires extensive bandwidth, orders ofrnmagnitude larger than the bandwidth requirements of existingrnapplications. It is essential to determine whether or notrnexisting network infrastructures can handle the augmentedrnworkload that terabyte transfers would create. This is particularlyrncritical for academic campus networks that are alreadyrnunder strain from high user demand. The paper evaluatesrnthe system level challenges of incorporating terabyterntransfers into an existing campus network. The evaluationrnfinds that large file transfers can be handled by the currentrncampus network without making major changes to the infrastructure.rnIt is vital to employ a system level service thatrnschedules and monitors the terabyte transfers on users’ behalf.rnBy removing control from users, the service is able tornleverage low demand periods and dynamically repurposernunused bandwidth.