DE3275138D1 - Data memory systems - Google Patents

Data memory systems

Info

Publication number
DE3275138D1
DE3275138D1 DE8282305774T DE3275138T DE3275138D1 DE 3275138 D1 DE3275138 D1 DE 3275138D1 DE 8282305774 T DE8282305774 T DE 8282305774T DE 3275138 T DE3275138 T DE 3275138T DE 3275138 D1 DE3275138 D1 DE 3275138D1
Authority
DE
Germany
Prior art keywords
data memory
memory systems
systems
data
memory
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE8282305774T
Other languages
German (de)
English (en)
Inventor
Takashi Koike
Hajime Sugiura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE3275138D1 publication Critical patent/DE3275138D1/de
Expired legal-status Critical Current

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
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2089—Redundant storage control functionality
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2094—Redundant storage or storage space
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE8282305774T 1981-10-30 1982-10-29 Data memory systems Expired DE3275138D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56173989A JPS5876959A (ja) 1981-10-30 1981-10-30 デイスク制御方式

Publications (1)

Publication Number Publication Date
DE3275138D1 true DE3275138D1 (en) 1987-02-19

Family

ID=15970707

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282305774T Expired DE3275138D1 (en) 1981-10-30 1982-10-29 Data memory systems

Country Status (4)

Country Link
US (1) US4494215A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0078683B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5876959A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3275138D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120819A (en) * 1982-05-21 1983-12-07 Pitney Bowes Inc Disk drive size selector circuit
US4600990A (en) * 1983-05-16 1986-07-15 Data General Corporation Apparatus for suspending a reserve operation in a disk drive
JPS60179861A (ja) * 1984-02-27 1985-09-13 Fujitsu Ltd 入出力システムのメモリ診断方式
US4803653A (en) * 1986-08-06 1989-02-07 Hitachi, Ltd. Memory control system
USRE34282E (en) * 1985-08-15 1993-06-15 Hitachi, Ltd. Memory control system
JPS6278623A (ja) * 1985-10-02 1987-04-10 Toshiba Corp 磁気デイスク装置
JP2550311B2 (ja) * 1985-11-20 1996-11-06 株式会社日立製作所 磁気デイスクの多重制御方式
FR2590700B1 (fr) * 1985-11-28 1988-02-05 Copernique Dispositif d'adaptation d'une unite de memoire auxiliaire a au moins un controleur de cette unite et ensemble informatique comportant un tel dispositif
JPH0831241B2 (ja) * 1986-11-10 1996-03-27 日本電気株式会社 周辺制御プロセツサ
US5051887A (en) * 1987-08-25 1991-09-24 International Business Machines Corporation Maintaining duplex-paired storage devices during gap processing using of a dual copy function
US5737632A (en) * 1989-12-19 1998-04-07 Hitachi, Ltd. Magnetic disc control apparatus with parallel data transfer between disc control unit and encoder/decoder circuit
JP2752247B2 (ja) * 1990-11-29 1998-05-18 富士通株式会社 情報記憶装置
GB2297636B (en) * 1995-02-02 1999-12-01 Spring Consultants Limited Storing data
US6295587B1 (en) * 1999-09-03 2001-09-25 Emc Corporation Method and apparatus for multiple disk drive access in a multi-processor/multi-disk drive system
JP3747407B2 (ja) * 2001-11-13 2006-02-22 インターナショナル・ビジネス・マシーンズ・コーポレーション ディスクエンクロージャおよびディスクストレージ
JP4715286B2 (ja) * 2004-05-11 2011-07-06 株式会社日立製作所 計算機システムおよび計算機システムの制御方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623022A (en) * 1969-12-29 1971-11-23 Ibm Multiplexing system for interleaving operations of a processing unit
JPS52153714A (en) * 1976-06-16 1977-12-21 Matsushita Electric Ind Co Ltd Filing device
US4207609A (en) * 1978-05-08 1980-06-10 International Business Machines Corporation Method and means for path independent device reservation and reconnection in a multi-CPU and shared device access system

Also Published As

Publication number Publication date
EP0078683A2 (en) 1983-05-11
US4494215A (en) 1985-01-15
JPS5876959A (ja) 1983-05-10
EP0078683A3 (en) 1984-05-09
EP0078683B1 (en) 1987-01-14
JPS6360412B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-11-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee