Analysis and Optimization of Disk Storage Devices for Time-Sharing Systems
Journal of the ACM (JACM)
Performance of Movable-Head Disk Storage Devices
Journal of the ACM (JACM)
Minimal-total-processing time drum and disk scheduling disciplines
Communications of the ACM
ACM '72 Proceedings of the ACM annual conference - Volume 2
A comparative analysis of disk scheduling policies
SOSP '71 Proceedings of the third ACM symposium on Operating systems principles
Jobstream simulation using a channel multiprogramming feature
Proceedings of the fourth annual conference on Applications of simulation
The role of disk scheduling in multiprogrammed computer systems
The role of disk scheduling in multiprogrammed computer systems
Channel and direct access device architecture
IBM Systems Journal
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Techniques for scheduling disk drives are of two types: those which schedule transfers (based on rotational position) and those which schedule seeks (based on cylinder position). A simulation model has been developed to evaluate both of these approaches in a multiple drive environment. Use of this model for a comparison of two techniques for transfer scheduling has recently been reported [13]. This paper presents additional results of that study and extends it with a preliminary exploration of seek scheduling effects. The results indicate that seek scheduling can be effective for large configurations only when used in conjunction with a transfer scheduling technique.