Research on the Characteristics of the RadialErrors of SelfServowriting in Hard Disks

DIAO Xiao-Gang; WANG Hai-Wei; XIE Chang-Sheng; LI Bo

doi:10.3969/j.issn.1007130X.2010.

Computer Engineering & Science >

2010 , Vol. 32 >Issue 1: 117 - 119

DOI: https://doi.org/10.3969/j.issn.1007130X.2010.

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Research on the Characteristics of the RadialErrors of SelfServowriting in Hard Disks

DIAO Xiao-Gang ,
WANG Hai-Wei ,
XIE Chang-Sheng ,
LI Bo

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(1.School of Computer Science and Technology,Huazhong University of Science and Technology,Wuhan 430074;)

Received date: 2008-09-10

Revised date: 2008-12-03

Online published: 2010-01-18

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Abstract

Servo information is the bottleneck of the hard disk production. Selfservowriting can greatly improve the production efficiency of hard disk servo information. But the radial error accumulation can degrade seriously the quality of servo information written by the selfservowriting process. This paper analyzes the theory and model of selfservowriting. The course and reason of radial error generation are deduced from them. A method is proposed in the paper and the experimental result shows that the growth of radial errors is controlled. 

Key words： servo information;selfservowriting;radial error accumulation

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DIAO Xiao-Gang , WANG Hai-Wei , XIE Chang-Sheng , LI Bo . Research on the Characteristics of the RadialErrors of SelfServowriting in Hard Disks[J]. Computer Engineering & Science, 2010 , 32(1) : 117 -119 . DOI: 10.3969/j.issn.1007130X.2010.

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