Time-varying management of data storage

  • Authors:
  • Ranjita Bhagwan;Fred Douglis;Kirsten Hildrum;Jeffrey O. Kephart;William E. Walsh

  • Affiliations:
  • IBM T. J. Watson Research Center;IBM T. J. Watson Research Center;IBM T. J. Watson Research Center;IBM T. J. Watson Research Center;IBM T. J. Watson Research Center

  • Venue:
  • HotDep'05 Proceedings of the First conference on Hot topics in system dependability
  • Year:
  • 2005

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Abstract

The efficiency of large-scale applications is strongly dependent on good data management techniques. In this paper, we claim that the ability to specify data requirements in a time-varying manner facilitates data management and improves application efficiency. This is because requirements such as availability, bandwidth and latency can vary significantly with time. Consequently, the storage system can dynamically change the allocation of resources to data objects. We describe how an application may specify these dynamic requirements using utility functions, and outline a strategy towards achieving an optimal allocation of resources to data objects.