JPS52123137A - Duplication memory control unit - Google Patents

Duplication memory control unit

Info

Publication number
JPS52123137A
JPS52123137A JP3919876A JP3919876A JPS52123137A JP S52123137 A JPS52123137 A JP S52123137A JP 3919876 A JP3919876 A JP 3919876A JP 3919876 A JP3919876 A JP 3919876A JP S52123137 A JPS52123137 A JP S52123137A
Authority
JP
Japan
Prior art keywords
control unit
memory control
duplication memory
duplication
state
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.)
Granted
Application number
JP3919876A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5632720B2 (OSRAM
Inventor
Yoshiki Kobayashi
Hideo Maejima
Tadaaki Bando
Hiroaki Nakanishi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3919876A priority Critical patent/JPS52123137A/ja
Publication of JPS52123137A publication Critical patent/JPS52123137A/ja
Publication of JPS5632720B2 publication Critical patent/JPS5632720B2/ja
Priority to US06/485,020 priority patent/US4486834A/en
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G06F11/2056—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 by mirroring
    • G06F11/2082—Data synchronisation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/26—Functional testing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • G06F15/163—Interprocessor communication
    • G06F15/167—Interprocessor communication using a common memory, e.g. mailbox
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/70—Masking faults in memories by using spares or by reconfiguring
    • G11C29/74—Masking faults in memories by using spares or by reconfiguring using duplex memories, i.e. using dual copies
    • 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
    • G06F11/2056—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 by mirroring
    • G06F11/2064—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 by mirroring while ensuring consistency

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Software Systems (AREA)
  • Hardware Redundancy (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
JP3919876A 1976-04-09 1976-04-09 Duplication memory control unit Granted JPS52123137A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3919876A JPS52123137A (en) 1976-04-09 1976-04-09 Duplication memory control unit
US06/485,020 US4486834A (en) 1976-04-09 1983-04-14 Multi-computer system having dual common memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3919876A JPS52123137A (en) 1976-04-09 1976-04-09 Duplication memory control unit

Publications (2)

Publication Number Publication Date
JPS52123137A true JPS52123137A (en) 1977-10-17
JPS5632720B2 JPS5632720B2 (OSRAM) 1981-07-29

Family

ID=12546413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3919876A Granted JPS52123137A (en) 1976-04-09 1976-04-09 Duplication memory control unit

Country Status (2)

Country Link
US (1) US4486834A (OSRAM)
JP (1) JPS52123137A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419458A (en) * 1987-07-15 1989-01-23 Hitachi Ltd Distributed shared memory device
US5963976A (en) * 1990-09-18 1999-10-05 Fujitsu Limited System for configuring a duplex shared storage

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914062A (ja) * 1982-07-15 1984-01-24 Hitachi Ltd 二重化共有メモリ制御方法
JPS62206658A (ja) * 1986-03-07 1987-09-11 Hitachi Ltd 記憶管理装置
US4774660A (en) * 1987-02-20 1988-09-27 Gte Communication Systems Corporation Increased bandwidth for multi-processor access of a common resource
JPH0831061B2 (ja) * 1987-07-24 1996-03-27 株式会社日立製作所 バツフア制御方式
DE69124285T2 (de) * 1990-05-18 1997-08-14 Fujitsu Ltd Datenverarbeitungssystem mit einem Eingangs-/Ausgangswegetrennmechanismus und Verfahren zur Steuerung des Datenverarbeitungssystems
US5909541A (en) * 1993-07-14 1999-06-01 Honeywell Inc. Error detection and correction for data stored across multiple byte-wide memory devices
US5513351A (en) * 1994-07-28 1996-04-30 International Business Machines Corporation Protecting a system during system maintenance by usage of temporary filenames in an alias table
US6715059B2 (en) 2000-07-26 2004-03-30 Tas Holdings, Inc. Methods and systems for a shared memory unit with extendable functions
US6892298B2 (en) 2000-07-26 2005-05-10 Times N Systems, Inc. Load/store micropacket handling system
US6782440B2 (en) 2000-07-26 2004-08-24 T.N.S. Holdings, Inc. Resource locking and thread synchronization in a multiprocessor environment
US20020013822A1 (en) * 2000-07-26 2002-01-31 West Karlon K. Shared as needed programming model
US6665777B2 (en) 2000-07-26 2003-12-16 Tns Holdings, Inc. Method, apparatus, network, and kit for multiple block sequential memory management
US6675277B2 (en) 2000-07-26 2004-01-06 Tns Holdings, Inc. Method and apparatus for demand usable adapter memory access management
US20020029334A1 (en) * 2000-07-26 2002-03-07 West Karlon K. High availability shared memory system
KR100546403B1 (ko) * 2004-02-19 2006-01-26 삼성전자주식회사 감소된 메모리 버스 점유 시간을 가지는 시리얼 플레쉬메모리 컨트롤러
FR3126249B1 (fr) * 2021-08-18 2023-07-07 Continental Automotive Procédé, dispositif et système d’autorisation d’accès à un véhicule partagé

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866182A (en) * 1968-10-17 1975-02-11 Fujitsu Ltd System for transferring information between memory banks
US3668644A (en) * 1970-02-09 1972-06-06 Burroughs Corp Failsafe memory system
US3676851A (en) * 1970-03-31 1972-07-11 Ibm Information retrieval system and method
GB1472885A (en) * 1974-05-01 1977-05-11 Int Computers Ltd Digital code conversion arrangements
US4228496A (en) * 1976-09-07 1980-10-14 Tandem Computers Incorporated Multiprocessor system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419458A (en) * 1987-07-15 1989-01-23 Hitachi Ltd Distributed shared memory device
US5963976A (en) * 1990-09-18 1999-10-05 Fujitsu Limited System for configuring a duplex shared storage

Also Published As

Publication number Publication date
US4486834A (en) 1984-12-04
JPS5632720B2 (OSRAM) 1981-07-29

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