Title :
Database reorganization in parallel disk arrays with I/O service stealing
Author :
Zabback, Peter ; Onyuksei, I. ; Scheuermann, Peter ; Welkum, G.
Author_Institution :
Tandem Comput. Inc., Cupertino, CA, USA
Abstract :
We present a model for data reorganization in parallel disk systems that is geared toward 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 actions
Keywords :
database theory; distributed databases; queueing theory; resource allocation; software performance evaluation; I/O service stealing; approximate queueing model; cooling requests; data reorganization; database reorganization; disk cooling; effective arrival rates; load balancing; migrating files; parallel database systems; parallel disk arrays; periodic access patterns; temporal access patterns; Computer Society; Cooling; Costs; Database systems; File systems; Load management; Transaction databases; Utility programs;
Journal_Title :
Knowledge and Data Engineering, IEEE Transactions on
