A Note on Disk Drag Dynamics
Performance
2012-02-01 v1 Databases
Classical Physics
Abstract
The electrical power consumed by typical magnetic hard disk drives (HDD) not only increases linearly with the number of spindles but, more significantly, it increases as very fast power-laws of speed (RPM) and diameter. Since the theoretical basis for this relationship is neither well-known nor readily accessible in the literature, we show how these exponents arise from aerodynamic disk drag and discuss their import for green storage capacity planning.
Cite
@article{arxiv.1201.6402,
title = {A Note on Disk Drag Dynamics},
author = {Neil J. Gunther},
journal= {arXiv preprint arXiv:1201.6402},
year = {2012}
}
Comments
5 pages, 3 figures