Holistic Quota Management: The Natural Path to a Better, More Efficient Quota System

  • Authors:
  • Affiliations:
  • Venue:
  • LISA '02 Proceedings of the 16th USENIX conference on System administration
  • Year:
  • 2002

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Abstract

Disk quota systems exist to protect a limited resource and ensure that users can share it. However, existing quota management systems concentrate on controlling user privileges, rather than protecting resources. This paper suggests a new management model based upon a holistic view of resources and their controls. By acting upon a resource globally rather than upon individual users, the new approach exposes trends, allows for better resource planning, and allows for easy understanding of the impact of changes on a user's ability to accomplish work. A new tool 'Qualm' is the first component of a new system for dynamic resource management that allows for decisions based not upon fixed limits for resource usage, but upon limits that change with usage patterns and demand.