Promote-IT: An efficient Real-Time Tertiary-Storage Scheduler

Lijding, Maria Eva and Mullender, Sape and Jansen, Pierre (2004) Promote-IT: An efficient Real-Time Tertiary-Storage Scheduler. In: 21st IEEE Conference on Mass Storage Systems and Technologies, MSST, Apr 13-16, 2004, College Park, Maryland.

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Abstract:	Promote-IT is an efficient heuristic scheduler that provides QoS guarantees for accessing data from tertiary storage. It can deal with a wide variety of requests and jukebox hardware. It provides short response and confirmation times, and makes good use of the jukebox resources. It separates the scheduling and dispatching functionality and effectively uses this separation to dispatch tasks earlier than scheduled, provided that the resource constraints are respected and no task misses its deadline. To prove the efficiency of Promote-IT we implemented alternative schedulers based on different scheduling models and scheduling paradigms. The evaluation shows that Promote-IT performs better than the other heuristic schedulers. Additionally, Promote-IT provides response-times near the optimum in cases where the optimal scheduler can be computed.
Item Type:	Conference or Workshop Item
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Pervasive Systems (PS)
Link to this item:	http://purl.utwente.nl/publications/48654
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