Mitigating impact of starting new session in zoned disk

Cycle based disk scheduling approach is widely used to satisfy the timing constraints of the multimedia data retrieval. When new service request arrives at the server, the length of cycle needs to be extended to accommodate the new service session. Under legacy cycle based disk scheduling paradigm, the amount of blocks fetched for a session in each cycle becomes insufficient when the cycle is extended to accommodate a new stream and subsequently some of the ongoing sessions suffer from jitter. In this article, we present a technique called "prebuffering" which makes the streaming server resilient to the cycle extension. Our model is based upon the zone based disk.