KR970008059A - Zone Size Optimization Method on Magnetic Discs in Constant-Density Recording Type - Google Patents

Zone Size Optimization Method on Magnetic Discs in Constant-Density Recording Type Download PDF

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Publication number
KR970008059A
KR970008059A KR1019950019803A KR19950019803A KR970008059A KR 970008059 A KR970008059 A KR 970008059A KR 1019950019803 A KR1019950019803 A KR 1019950019803A KR 19950019803 A KR19950019803 A KR 19950019803A KR 970008059 A KR970008059 A KR 970008059A
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KR
South Korea
Prior art keywords
zone
errors
zones
change
magnetic disk
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KR1019950019803A
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Korean (ko)
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KR100264795B1 (en
Inventor
조재덕
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김광호
삼성전자 주식회사
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Priority to KR1019950019803A priority Critical patent/KR100264795B1/en
Publication of KR970008059A publication Critical patent/KR970008059A/en
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Publication of KR100264795B1 publication Critical patent/KR100264795B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10481—Improvement or modification of read or write signals optimisation methods
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

콘스턴트-덴시티 기록형태를 채용한 자기 디스크 구동장치에서 자기 디스크상의 기록 영역을 분할하여 형성한 다수의 존들의 크기를 할당하는 방법이다.A method of allocating the sizes of a plurality of zones formed by dividing a recording area on a magnetic disk in a magnetic disk driving apparatus employing a constant-density recording form.

2. 발명이 해결하고자 하는 기술적 과제2. Technical problem to be solved by the invention

자기 디스크 구동장치마다 각각의 특성에 맞게 각각의 자기 디스크상의 존의 크기를 조정하여 에러를 감소시킬 수 있는 최적화방법을 제공한다.For each magnetic disk drive, there is provided an optimization method that can reduce errors by adjusting the size of the zone on each magnetic disk according to each characteristic.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

자기 디스크들의 각 면에 대하여 리드 채널 최적화 시험을 하여 각 디스크 면 및 존마다에 대한 시험에 따른 에러 갯수가 미리 설정된 수 이상일 경우, 디스크면들 중 불량 디스크면의 외주부터 모든 존들의 트랙 수를 일정 감소시켜 재할당하고 양호한 디스크면의 외주부터 모든 존들의 트랙 수르 일정 증사기켜 재할당하여 각 존들의 크기를 변경하며, 변경된 디스크들의 각 면에 대하여 다시 리드 채널 최적화 시험을 하여 각 디스크 면 및 존마다에 대한 시험에 따른 에러 갯수를 측정하고, 존들의 크기 변경 전후에 에러 갯수를 비교하여 변경전의 에러 갯수가 변경 후의 에러 갯수보다 많을 경우 초기 설정된 존 레이아웃 정보를 변경된 존 레이아웃 정보를 갱신한다.If the number of errors according to the test for each disk surface and zone is more than the preset number, the track number of all zones is fixed from the outer periphery of the defective disk surface among the disk surfaces. Reallocate and change the size of each zone by re-allocating the track number of all zones from the outer periphery of the good disk surface, and re-calibrate the lead channel for each side of the changed disks. The number of errors according to each test is measured, and the number of errors before and after the size change of the zones is compared, and when the number of errors before the change is larger than the number of errors after the change, the zone layout information changed from the initially set zone layout information is updated.

4. 발명의 중요한 용도4. Important uses of the invention

콘스턴트-덴시티 기록형태를 채용한 자기 디스크 구동장치에 이용된다.It is used in a magnetic disk drive apparatus employing a constant-density recording form.

Description

콘스턴트-덴시티 기록형태의 자기 디스크상의 존 크기 최적화방법Zone Size Optimization Method on Magnetic Discs in Constant-Density Recording Type

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 따른 존들의 크기 최적화 처리 흐름도.3 is a flowchart of a process for optimizing the size of zones in accordance with the present invention.

Claims (3)

콘스턴트-덴시티 기록형태의 다수의 자기 디스크를 구비한 자기 디스크 구동장치에서 상기 자기 디스크상의 존 크기 최적화방법에 있어서, 상기 디스크들의 각 면에 대하여 리드 채널 최적화 시험을 하여 각 디스크 면 및 존마다에 대한 시험에 따른 에러 갯수를 측정하는 과정과, 상기 측정된 에러 갯수가 미리 설정된 수 이상일 경우 상기 디스크 면들중 불량 디스크면의 외주부터 모든 존들의 트랙 수를 일정 감소시켜 재할당하며 양호한 디스크면의 외주부터 모든 존들의 트랙 수를 일정 증가시켜 재할당하여 각 존들의 크기를 변경하는 과정과, 상기 변경된 디스크들의 각 면에 대하여 다시 리드 채널 최적화 시험을 하여 각 디스크 면 및 존마다에 대한 시험에 따른 에러 갯수를 측정하는 과정과, 상기 존들의 크기 변경 전후에 에러 갯수를 비교하는 과정과, 상기 변경 전의 에러 갯수가 변경 후의 에러 갯수보다 많을 경우 초기 설정된 존 레이아웃 정보를 상기 변경된 존 레이아웃 정보를 갱신하는 과정으로 이루어지는 것을 특징으로 하는 존 크기 최적화방법.In a magnetic disk driving apparatus having a plurality of magnetic disks in the form of constant-density recording, in the method for optimizing the zone size on the magnetic disk, a read channel optimization test is performed on each surface of the disks and the respective disk surfaces and zones. The process of measuring the number of errors according to the test for, and if the measured error number is more than the preset number, the real number of tracks of all zones from the outer periphery of the bad disk surface of the disk surface is reallocated and reallocated The process of changing the size of each zone by reallocating and re-allocating the track number of all zones from the outer periphery, and conducting the read channel optimization test on each side of the changed discs again according to the test for each disc side and zone Measuring the number of errors and comparing the number of errors before and after resizing the zones. And updating the changed zone layout information from the initially set zone layout information when the number of errors before the change is greater than the number of errors after the change. 제1항에 있어서, 상기 변경 전의 에러 갯수가 변경 후의 에러 갯수보다 적을 경우 상기 초기 설정된 존레이아웃 정보를 변경하지 않고 그 대로 유지하는 과정을 구비하는 것을 특징으로 하는 존 크기 최적화방법.The zone size optimization method of claim 1, further comprising: maintaining the initial zone information without changing the initial zone information when the number of errors before the change is less than the number after the change. 제2항에 있어서, 상기 존 레이아웃 정보가 상기 디스크상의 유지관리 영역에 기록되는 것을 특징으로 하는 존 크기 최적화방법.3. The zone size optimization method according to claim 2, wherein the zone layout information is recorded in a maintenance area on the disc. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950019803A 1995-07-06 1995-07-06 Zone magnitude optimizing method of constant density recording type magnetic disc KR100264795B1 (en)

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KR1019950019803A KR100264795B1 (en) 1995-07-06 1995-07-06 Zone magnitude optimizing method of constant density recording type magnetic disc

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Application Number Priority Date Filing Date Title
KR1019950019803A KR100264795B1 (en) 1995-07-06 1995-07-06 Zone magnitude optimizing method of constant density recording type magnetic disc

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KR100264795B1 KR100264795B1 (en) 2000-09-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100461470B1 (en) * 1996-09-05 2005-04-06 삼성전자주식회사 Variable method of main turn area for improving reliability of hard disk drive
KR100505586B1 (en) * 1998-01-14 2005-09-30 삼성전자주식회사 Apparatus and method for determining burn-in test progress status of hard disk drive

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100464439B1 (en) * 2002-11-25 2004-12-31 삼성전자주식회사 Method and apparatus for processing adaptive defect scan according to characteristic of channel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05314659A (en) * 1992-05-08 1993-11-26 Fuji Electric Co Ltd Method for setting data recording zone for disk storage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100461470B1 (en) * 1996-09-05 2005-04-06 삼성전자주식회사 Variable method of main turn area for improving reliability of hard disk drive
KR100505586B1 (en) * 1998-01-14 2005-09-30 삼성전자주식회사 Apparatus and method for determining burn-in test progress status of hard disk drive

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