[go: up one dir, main page]

HK203496A - Combining small records into a single record block for recording on a record media - Google Patents

Combining small records into a single record block for recording on a record media Download PDF

Info

Publication number
HK203496A
HK203496A HK203496A HK203496A HK203496A HK 203496 A HK203496 A HK 203496A HK 203496 A HK203496 A HK 203496A HK 203496 A HK203496 A HK 203496A HK 203496 A HK203496 A HK 203496A
Authority
HK
Hong Kong
Prior art keywords
format
data
record
block
recorded
Prior art date
Application number
HK203496A
Other languages
German (de)
English (en)
French (fr)
Inventor
Charles Dunn Edwin
Milton Fry Scott
Arie Jackson Scott
Hector Maclean Neil Jr
Porter Reynolds Richard
Anthony Ripberger Richard
Original Assignee
International Business Machines Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corporation filed Critical International Business Machines Corporation
Publication of HK203496A publication Critical patent/HK203496A/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0614—Improving the reliability of storage systems
    • G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0638—Organizing or formatting or addressing of data
    • G06F3/064—Management of blocks
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device
    • G06F3/0682—Tape device
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1262—Formatting, e.g. arrangement of data block or words on the record carriers with more than one format/standard, e.g. conversion from CD-audio format to R-DAT format
    • 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
    • G11B2020/1087—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing
    • 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
    • G11B2020/1087—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing
    • G11B2020/10879—Digital recording or reproducing wherein a selection is made among at least two alternative ways of processing the kind of record carrier being the selection criterion

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
HK203496A 1989-06-28 1996-11-07 Combining small records into a single record block for recording on a record media HK203496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/372,744 US5200864A (en) 1989-06-28 1989-06-28 Combining small records into a single record block for recording on a record media

Publications (1)

Publication Number Publication Date
HK203496A true HK203496A (en) 1996-11-15

Family

ID=23469454

Family Applications (1)

Application Number Title Priority Date Filing Date
HK203496A HK203496A (en) 1989-06-28 1996-11-07 Combining small records into a single record block for recording on a record media

Country Status (11)

Country Link
US (2) US5200864A (zh)
EP (1) EP0406188B1 (zh)
JP (1) JPH0341672A (zh)
KR (1) KR930005437B1 (zh)
CN (1) CN1019341B (zh)
AU (1) AU628572B2 (zh)
BR (1) BR9003022A (zh)
CA (1) CA2011234C (zh)
DE (1) DE69026652T2 (zh)
HK (1) HK203496A (zh)
MY (1) MY105839A (zh)

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2712656B2 (ja) * 1989-10-25 1998-02-16 日本電気ホームエレクトロニクス株式会社 Ｃｄ―ｒｏｍ記録方法
GB2240896B (en) * 1990-02-06 1994-04-27 Sony Corp Methods of and apparatus for coding television signals
DE69031031T2 (de) * 1990-05-29 1997-10-30 Hewlett Packard Ltd Bandspeicherung
US5268798A (en) * 1991-01-10 1993-12-07 Hewlett-Packard Company Method for detecting the start of data field in a recording medium by detecting the sequence of bit codes
JP2546076B2 (ja) * 1991-02-27 1996-10-23 日本ビクター株式会社 磁気記録補正回路
US5272691A (en) * 1991-05-30 1993-12-21 Matsushita Electric Industrial Co., Ltd. Method for recording and reproducing compressed data
JP2962335B2 (ja) * 1991-06-24 1999-10-12 日本電気株式会社 空き領域検索方式
JP3198550B2 (ja) * 1991-09-03 2001-08-13 ソニー株式会社 圧縮データ記録方法及び圧縮データ記録再生装置
US5617265A (en) * 1991-09-20 1997-04-01 Mita Industrial Co., Ltd. Magnetic tape recording device comprising a variable data region length system
JPH05198099A (ja) * 1992-01-22 1993-08-06 Sony Corp 情報送出装置及び情報再生装置
US5388012A (en) * 1992-02-28 1995-02-07 E-Systems, Inc. Partitioning of magnetic tape into sequentially occurring partitions between and around regularly occurring system zones
US5543977A (en) * 1992-02-28 1996-08-06 Ampex Systems Corporation Data recording system having improved longitudinal and helical search capability
JP3175371B2 (ja) * 1992-03-06 2001-06-11 三菱電機株式会社 データ記憶フォーマット変換方式及びその変換方法及びアクセス制御装置及びデータアクセス方法
US5721954A (en) * 1992-04-13 1998-02-24 At&T Global Information Solutions Company Intelligent SCSI-2/DMA processor
US5390315A (en) * 1992-06-15 1995-02-14 International Business Machines Corporation Allocation of uniform contiguous blocks of DASD storage by maintaining both a bit and a bit map record of available storage
US5488517A (en) * 1992-10-08 1996-01-30 U.S. Philips Corporation System comprising a magnetic-tape cassette and a magnetic-tape apparatus, and magnetic-tape cassette, tape-cleaning means and tape-cleaning element for use in the system
JP2525122B2 (ja) * 1992-11-09 1996-08-14 インターナショナル・ビジネス・マシーンズ・コーポレイション コンピュ―タ・システムのバックアップ記録方法、復元方法およびシステム
JP3431030B2 (ja) * 1992-11-12 2003-07-28 ソニー株式会社 再生装置および再生方法
TW223171B (en) * 1993-01-06 1994-05-01 Sony Co Ltd Playback method and device
US5448702A (en) * 1993-03-02 1995-09-05 International Business Machines Corporation Adapters with descriptor queue management capability
US5706260A (en) * 1993-03-09 1998-01-06 Sony Corporation Apparatus for and method of synchronously recording signals onto a disk medium by a single head
US5394280A (en) * 1993-06-14 1995-02-28 International Business Machines Corporation Detecting a servo error on a magnetic tape and identifying extent and location of the detected servo error by linked control marks
AU682032B2 (en) * 1993-06-29 1997-09-18 Sony Corporation Audio signal transmitting apparatus and the method thereof
CA2124752C (en) * 1993-06-30 2005-04-12 Mark Zbikowski Meta-data structure and handling
CA2124754C (en) * 1993-06-30 2005-06-28 Mark Zbikowski Storage of file data on disk in multiple representations
US5634123A (en) * 1993-07-08 1997-05-27 Park City Group, Inc. Data management using nested records and code points
KR0167587B1 (ko) * 1993-07-26 1999-03-20 모리시타 요이찌 디지털데이터기록재생장치
JP2982571B2 (ja) * 1993-08-05 1999-11-22 日本ビクター株式会社 デジタルデータ記録再生方法
JP2557203B2 (ja) * 1993-12-27 1996-11-27 インターナショナル・ビジネス・マシーンズ・コーポレイション ファジィ・パッキング方法及びデータ記憶システム
US5802599A (en) * 1994-02-08 1998-09-01 International Business Machines Corporation System and method for allocating storage in a fragmented storage space
WO1995024035A1 (en) * 1994-03-03 1995-09-08 Cirrus Logic, Inc. A table driven method and apparatus for automatic split field processing
JPH10500520A (ja) * 1994-03-03 1998-01-13 シーラス ロジック， インコーポレイテッド Ｉｄフィールドなしの自動トラック処理のための欠陥マネジメント
US5455721A (en) * 1994-03-03 1995-10-03 Cirrus Logic, Inc. Method and apparatus for automatic sector pulse generation and split field calculation in disk drives
US6025966A (en) * 1994-03-03 2000-02-15 Cirrus Logic, Inc. Defect management for automatic track processing without ID field
US5592342A (en) * 1994-05-23 1997-01-07 Quantum Corporation Method for packing variable size user data records into fixed size blocks on a storage medium
US5696775A (en) * 1994-09-23 1997-12-09 Cirrus Logic, Inc. Method and apparatus for detecting the transfer of a wrong sector
US5872767A (en) * 1995-02-17 1999-02-16 Matsushita Electric Industrial Co., Ltd. Optical disk and an optical disk recording/reproduction device having address blocks located on boundary lines between adjoining tracks
JP2871534B2 (ja) * 1995-06-26 1999-03-17 株式会社日立製作所 ディジタル信号記録方法、ディスク再生装置、及び、ディスク再生方法
US5819297A (en) * 1995-09-27 1998-10-06 Emc Corporation Method and apparatus for creating reliably duplicatable tape volumes without copying any padding
US6023385A (en) * 1997-02-21 2000-02-08 Storage Technology Corporation Tape servo pattern with enhanced synchronization properties
US5926339A (en) * 1997-02-21 1999-07-20 Storage Technology Corporation Method for servo track identification
US5920439A (en) * 1997-02-21 1999-07-06 Storage Technology Corporation Method for determining longitudinal position on a magnetic tape having an embedded position count field
US6018429A (en) * 1997-02-21 2000-01-25 Storage Technology Corporation Tape servo pattern with embedded servo track number identification
US6075666A (en) * 1997-02-21 2000-06-13 Storage Technology Corporation Tape servo pattern having an embedded position count field
US5963400A (en) * 1997-02-21 1999-10-05 Storage Technology Corporation Thin film tape head including split top pole
US5898533A (en) * 1997-02-21 1999-04-27 Storage Technology Corporation Tape servo pattern with embedded servo track number identification
US5973869A (en) * 1997-02-21 1999-10-26 Storage Technology Corporation Servo frame edge detection for tape servo pattern with synchronization field
JPH10289537A (ja) * 1997-04-11 1998-10-27 Sony Corp デジタルデータ記録方法およびデジタルデータ記録媒体
US6031698A (en) * 1997-06-10 2000-02-29 Iomega Corporation Multiple partition tape cartridge detection means
US6337642B1 (en) * 1999-12-28 2002-01-08 Texas Instruments Incorporated Method for efficient interleaving of variable length packets with maximized block size
US6721843B1 (en) 2000-07-07 2004-04-13 Lexar Media, Inc. Flash memory architecture implementing simultaneously programmable multiple flash memory banks that are host compatible
US7240288B2 (en) 2000-12-18 2007-07-03 Microsoft Corporation Method and system for making resources available
US7111075B2 (en) * 2000-12-18 2006-09-19 Microsoft Corporation Method and system for processing data records having multiple formats
JP3495709B2 (ja) * 2001-01-12 2004-02-09 三洋電機株式会社 データ記録装置
US6618795B2 (en) * 2001-01-24 2003-09-09 Sony Corporation Method and apparatus for concurrent access to a sequential device
US6775087B2 (en) 2001-06-18 2004-08-10 Sony Corporation Method and apparatus to read past EOD marker
US6862149B2 (en) * 2001-06-18 2005-03-01 Hewlett-Packard Development Company, L.P. Searching for append point in data storage device
US6747829B2 (en) * 2001-06-29 2004-06-08 International Business Machines Corporation Pad eliminating decoding method and apparatus for a direct access storage device
US6978414B2 (en) * 2001-07-17 2005-12-20 Hewlett-Packard Development Company, L.P. Method and apparatus for protecting against errors occurring in data storage device buffers
US7042667B2 (en) * 2001-07-31 2006-05-09 Hewlett-Packard Development Company, L.P. Data storage
US6883122B2 (en) * 2001-07-31 2005-04-19 Hewlett-Packard Development Company, L.P. Write pass error detection
US6958873B2 (en) * 2001-07-31 2005-10-25 Hewlett-Packard Development Company, L.P. Data rewrite control in data transfer and storage apparatus
US6804075B1 (en) 2002-03-01 2004-10-12 Sony Corporation Logical expiration of media having embedded non-volatile memory
DE10227165A1 (de) * 2002-06-18 2004-01-29 Siemens Ag Verfahren und Anordnung zur Codierung bzw. Decodierung einer Folge digitaler Daten
US7248230B2 (en) * 2002-10-15 2007-07-24 Piccionelli Gregory A Ornament apparatus, system and method
US6970311B2 (en) * 2003-08-18 2005-11-29 International Business Machines Corporation Storing data to magnetic tape both to one set of tracks and in the same operation rewritten to another set of tracks
JP2005190057A (ja) * 2003-12-25 2005-07-14 Hitachi Ltd ディスクアレイ装置及びディスクアレイ装置のリモートコピー制御方法
US7343451B2 (en) * 2003-12-25 2008-03-11 Hitachi, Ltd. Disk array device and remote copying control method for disk array device
JP4047836B2 (ja) * 2004-04-02 2008-02-13 株式会社東芝 通信装置、通信システム、通信方法、および通信制御プログラム
US6950257B1 (en) 2004-04-29 2005-09-27 International Business Machines Corporation Writing to magnetic tape with backhitchless backspacing and data set invalidation
US8139610B1 (en) * 2006-01-17 2012-03-20 Xilinx, Inc. Method for framing data for transmission over an encoded channel
US7962499B2 (en) 2006-08-18 2011-06-14 Falconstor, Inc. System and method for identifying and mitigating redundancies in stored data
US9564988B2 (en) * 2007-07-26 2017-02-07 The Directv Group, Inc. Method and system for forming a formatted content stream and using a cyclic redundancy check
US8069317B2 (en) * 2007-10-12 2011-11-29 International Business Machines Corporation Providing and utilizing high performance block storage metadata
US9141477B2 (en) * 2007-10-12 2015-09-22 International Business Machines Corporation Data protection for variable length records by utilizing high performance block storage metadata
US8230317B2 (en) * 2008-04-09 2012-07-24 International Business Machines Corporation Data protection method for variable length records by utilizing high performance block storage metadata
US8190832B2 (en) 2009-01-29 2012-05-29 International Business Machines Corporation Data storage performance enhancement through a write activity level metric recorded in high performance block storage metadata
CA2754357A1 (en) * 2009-03-03 2010-09-10 Gregory A. Piccionelli Ornament apparatus, system and method
US8780475B2 (en) 2012-08-30 2014-07-15 International Business Machines Corporation Tape drive buffer utilization
JP6277276B2 (ja) * 2013-08-31 2018-02-07 ヒューレット パッカード エンタープライズ デベロップメント エル ピーＨｅｗｌｅｔｔ Ｐａｃｋａｒｄ Ｅｎｔｅｒｐｒｉｓｅ Ｄｅｖｅｌｏｐｍｅｎｔ ＬＰ 記述オブジェクト及び記述子
US10804930B2 (en) 2015-12-16 2020-10-13 International Business Machines Corporation Compressed data layout with variable group size
US10803018B2 (en) 2015-12-16 2020-10-13 International Business Machines Corporation Compressed data rearrangement to optimize file compression
US10037148B2 (en) * 2016-01-05 2018-07-31 Microsoft Technology Licensing, Llc Facilitating reverse reading of sequentially stored, variable-length data
US10311026B2 (en) 2016-05-27 2019-06-04 International Business Machines Corporation Compressed data layout for optimizing data transactions
US10191693B2 (en) 2016-10-14 2019-01-29 Microsoft Technology Licensing, Llc Performing updates on variable-length data sequentially stored and indexed to facilitate reverse reading
US10158611B2 (en) 2016-11-17 2018-12-18 Bank Of America Corporation System for multiplexing and demultiplexing blockchain ledgers via a cryptographic hash
CN117632039B (zh) 2024-01-25 2024-05-03 合肥兆芯电子有限公司 存储器管理方法、存储器存储装置及存储器控制电路单元

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471457A (en) * 1980-08-21 1984-09-11 International Business Machines Corporation Supervisory control of peripheral subsystems
FR2496375B1 (fr) * 1980-12-17 1985-12-20 Sony Corp Appareil d'enregistrement/reproduction de signaux de television avec des signaux autio multiplexes
US4393445A (en) * 1981-03-06 1983-07-12 International Business Machines Corporation Information-signal recording apparatus employing record volume oriented identification signals
US4403286A (en) * 1981-03-06 1983-09-06 International Business Machines Corporation Balancing data-processing work loads
US4423480A (en) * 1981-03-06 1983-12-27 International Business Machines Corporation Buffered peripheral system with priority queue and preparation for signal transfer in overlapped operations
US4435762A (en) * 1981-03-06 1984-03-06 International Business Machines Corporation Buffered peripheral subsystems
JPS5848279A (ja) * 1981-09-14 1983-03-22 Sony Corp キユ−信号処理装置
US4434487A (en) * 1981-10-05 1984-02-28 Digital Equipment Corporation Disk format for secondary storage system
US4475192A (en) * 1982-02-16 1984-10-02 At&T Bell Laboratories Data packet flow control scheme for switching networks
US4558380A (en) * 1983-05-11 1985-12-10 Pertec Peripherals Corporation Digital tape transport for selectively recording in either a parallel or serial mode
US4603382A (en) * 1984-02-27 1986-07-29 International Business Machines Corporation Dynamic buffer reallocation
JPS61233468A (ja) * 1985-04-08 1986-10-17 Hitachi Ltd 回転型情報記録媒体への情報書込み制御方式
US4730222A (en) * 1985-04-22 1988-03-08 Eastman Kodak Company Video recording apparatus having low and high resolution operational modes
US4644533A (en) * 1985-05-06 1987-02-17 American Telephone & Telegraph Company Packet switch trunk circuit queueing arrangement
US4935824A (en) * 1985-07-19 1990-06-19 Sony Corporation Information recording apparatus
JP2647649B2 (ja) * 1986-07-03 1997-08-27 パイオニア株式会社 光ディスク記録方法
JPS63197057A (ja) * 1987-02-12 1988-08-15 Hitachi Ltd 情報記録方法
EP0303230B1 (en) * 1987-08-12 1994-06-01 Hitachi, Ltd. PCM signal reproducing/recording apparatus
JP2725257B2 (ja) * 1987-09-16 1998-03-11 ソニー株式会社 ディジタル記録装置
GB8800351D0 (en) * 1988-01-08 1988-02-10 Hewlett Packard Ltd Data recorder
GB8829919D0 (en) * 1988-12-22 1989-02-15 Int Computer Limited File system

Also Published As

Publication number Publication date
BR9003022A (pt) 1991-08-20
KR910001676A (ko) 1991-01-31
CA2011234A1 (en) 1990-12-28
AU628572B2 (en) 1992-09-17
EP0406188A1 (en) 1991-01-02
DE69026652T2 (de) 1996-11-21
KR930005437B1 (en) 1993-06-21
CA2011234C (en) 1995-04-25
DE69026652D1 (de) 1996-05-30
CN1048462A (zh) 1991-01-09
MY105839A (en) 1995-01-30
EP0406188B1 (en) 1996-04-24
JPH0341672A (ja) 1991-02-22
AU5603490A (en) 1991-01-03
US5200864A (en) 1993-04-06
US5384669A (en) 1995-01-24
CN1019341B (zh) 1992-12-02
JPH0574148B2 (zh) 1993-10-15

Similar Documents

Publication Publication Date Title
EP0406188B1 (en) Combining small records into a single record block for recording on a record media
US5274772A (en) Data processing systems having means for selectively combining records into signal blocks for recording in a record medium
US5335328A (en) Methods for recording and reading data from a record member having data in any one of a plurality of block formats including determining length of records being transferred
US5442638A (en) Apparatus and method for recording over defects in storage media
US6182191B1 (en) Recording and reproducing system
TWI234768B (en) Magnetic tape drive and recording system therefor and method for writing received synchronized data to magnetic tape
US5539914A (en) Method and system for preprocessing data block headers during access of data in a data storage system
JPH01217770A (ja) データ記憶方法およびデータ検索方法
JP3652372B2 (ja) データ及び補助情報を記憶するための方法及び装置
KR20000071178A (ko) 파일기록방법, 데이터 기록장치, 기록매체 관리방법, 파일의 취급방법, 수신데이터를 기록매체에 기입하는 방법 및 프로그램 기록매체
JPH04263182A (ja) テープ上の論理ブロック番号により識別される所望の論理データブロックに迅速にアクセスする方法
US5966263A (en) Method and apparatus to increase head/AE select robustness for a system using multiple head servo write
US7062682B2 (en) Data recorder and data recording method avoiding data loss due to data transfer error
JP2620012B2 (ja) デュアルヘッド記録装置および記録方法
WO1992000589A1 (en) Read/write control for disk drive
JPH1011896A (ja) データ記録装置及び再生装置
JPH09231508A (ja) デマーキング機能を有するデータ記録システム及び方法
EP1267349B1 (en) Data recording method and data recording and reproducing apparatus
JP2595096B2 (ja) 磁気テープ装置とバッファメモリの制御方式
JP2544327B2 (ja) 磁気デイスク制御装置
JP3446361B2 (ja) 記録再生装置、情報信号記録再生システム及び無効領域情報の管理方法
JPS6139286A (ja) デ−タ管理方法
JP3567492B2 (ja) 磁気記録及び／又は再生装置
JPH0812613B2 (ja) ポインタ制御論理装置及びポインタ制御方法
JPH04286755A (ja) 磁気記録再生装置

Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20090521