Research of the Mobile-Code-Based File System for Portable Information Device
ICCNMC '01 Proceedings of the 2001 International Conference on Computer Networks and Mobile Computing (ICCNMC'01)
Horizon: efficient deadline-driven disk I/O management for distributed storage systems
Proceedings of the 19th ACM International Symposium on High Performance Distributed Computing
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This (short) paper presents the Clockwise, a mixed-media file system. The primary goal of the Clockwise is to provide a storage architecture that supports the storage and retrieval of best-effort and real-time file system data. Clockwise provides an abstraction called a dynamic partition that groups lists of related (large) blocks on one or more disks. Dynamic partition can grow and shrink in size and reading or writing of dynamic partitions can be scheduled explicitly. With respect to scheduling, Clockwise uses a novel strategy to pre-calculate schedule slack time and it schedules best-effort requests before queued real-time requests in this slack time.