Analysis and design trade-offs for magnetic hard disk access time

Xiao Zhang; Renjeng Su; Andrew Pleszkun

doi:10.1117/12.448019

8 November 2001 Analysis and design trade-offs for magnetic hard disk access time

Xiao Zhang, Renjeng Su, Andrew Pleszkun

Proceedings Volume 4534, Optoelectronic and Wireless Data Management, Processing, Storage, and Retrieval; (2001) https://doi.org/10.1117/12.448019
Event: ITCom 2001: International Symposium on the Convergence of IT and Communications, 2001, Denver, CO, United States

Abstract

Data access time is an important performance measure for any mass data storage system. It is the time between a data request received by the data storage system and the last bit of requested data sent to the host. For a magnetic hard disk drive, its data access time depends on how fast the actuator moves from tracks to tracks, the rotational speed of the platter, the size of the buffer for storing requests and data, and the algorithm that schedules the data requests. To improve the data access time, designers need to consider these parameters and perform trade-offs. This paper considers this problem. We derive analytical relations that are useful for design trade-offs.

Citation Download Citation

Xiao Zhang, Renjeng Su, and Andrew Pleszkun "Analysis and design trade-offs for magnetic hard disk access time", Proc. SPIE 4534, Optoelectronic and Wireless Data Management, Processing, Storage, and Retrieval, (8 November 2001); https://doi.org/10.1117/12.448019

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