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Lecture Notes in Computer Science
We propose and analyze an architecture for storage servers in large Video on Demand (VoD) systems. We describe a method for distributing the collection of titles among the levels of the storage hierarchy, based on estimates of the mean demand for each title. The resulting distribution minimizes cost for a given level of performance. Since high availability is desirable in VoD systems, we consider the use of mirroring or parity-based redundancy ( a l a RAID) and estimate the e ect on thedoi:10.1007/bfb0019284 fatcat:zfwwhp4odzdt3prcvff5mllqsm