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Database Reorganization in Parallel Disk Arrays with I/O Service StealingWe present a model for data reorganization in parallel disk systems that is geared towards load balancing in an environment with periodic access patterns. Data reorganization is performed by disk cooling, i.e. migrating files or extents from the hottest disks to the coldest ones. We develop an approximate queueing model for determining the effective arrival rates of cooling requests and discuss its use in assessing the costs versus benefits of cooling.
Document ID
19990009131
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Zabback, Peter (Tandem Computers, Inc. Cupertino, CA United States)
Onyuksel, Ibrahim (University of Northern Illinois De Kalb, IL United States)
Scheuermann, Peter (Northwestern Univ. Evanston, IL United States)
Weikum, Gerhard (Saarland Univ. Saarbruecken, Germany)
Date Acquired
September 6, 2013
Publication Date
January 1, 1996
Subject Category
Documentation And Information Science
Report/Patent Number
NASA/CR-1997-112996
NAS 1.26:112996
Funding Number(s)
CONTRACT_GRANT: NSF IRI-93-03583
CONTRACT_GRANT: NAG2-846
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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