Describe what issues that might affect the accuracy of benchmark results.  Are there results where drives perform better than others but shouldn't be ie an older SATA drive or the ratio of benchmarked speed compared to theoretical speed is way off - Document your results and try to explain any anomalies

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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question for computer hardware, Describe what issues that might affect the accuracy of benchmark results.  Are there results where drives perform better than others but shouldn't be ie an older SATA drive or the ratio of benchmarked speed compared to theoretical speed is way off - Document your results and try to explain any anomalies

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Comparison between SSD and HDD :

Solid state drives (SSDs) are quicker than ordinary hard plate drives (HDDs) and they are additionally more dependable and utilize less force. That implies that with regards to picking between SSD or HDD stockpiling, SSDs would be ideally to HDDs in all cases if not for one reality: SSDs are more costly than HDDs when estimated by cost per Gigabyte of capacity. 

A HDD is comprised of various turning attractive platters that stores information, and various read/compose heads on mechanical arms that move over the outside of the platters. To peruse or compose information at a particular area of a platter, the head needs to move to the suitable position, and afterward trust that the area will pass underneath it as the platter turns. 

This method of activity presents two clear wellsprings of deferral: 

  • It requires some investment for the head to move to the correct position, known as look for time. 
  • There is a deferral as the head sits tight for the correct aspect of the platter to come around, known as rotational inactivity, or just inertness. 
  • The look for time relies upon where the head is toward the beginning of an activity and where it needs to move to, and the inactivity relies upon the situation of the plate in its cycle, so for a given HDD it isn't unexpected to discuss normal look for time and normal dormancy.

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