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JPS57101950A - Double storage device control system - Google Patents

Double storage device control system

Info

Publication number
JPS57101950A
JPS57101950A JP55178488A JP17848880A JPS57101950A JP S57101950 A JPS57101950 A JP S57101950A JP 55178488 A JP55178488 A JP 55178488A JP 17848880 A JP17848880 A JP 17848880A JP S57101950 A JPS57101950 A JP S57101950A
Authority
JP
Japan
Prior art keywords
control parts
storage device
parts
dissidence
collating
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
JP55178488A
Other languages
Japanese (ja)
Other versions
JPS614128B2 (en
Inventor
Toshihiko Nihei
Tadashi Kawanobe
Ikutoshi Igawa
Yutaka Amano
Nobuharu Kanazawa
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
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon Electric Co 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, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP55178488A priority Critical patent/JPS57101950A/en
Publication of JPS57101950A publication Critical patent/JPS57101950A/en
Publication of JPS614128B2 publication Critical patent/JPS614128B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F11/1666—Error detection or correction of the data by redundancy in hardware where the redundant component is memory or memory area
    • G06F11/167—Error detection by comparing the memory output

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Hardware Redundancy (AREA)

Abstract

PURPOSE:To detect a latent fault on the operation in its early stage, by mutually comparing and collating the display signals showing the operation in each storage device, in case of a synchronizing operation mode of a double storage device. CONSTITUTION:A memory request generated by a processing device 2 is transferred to receiving control parts 11a, 11b of storage devices 1a, 1b, and the control parts 11a, 11b decide whether this request is receivable or not. The received memory request designates a sort of operation to sequence control parts 12a, 12b through the control parts 11a, 11b, the control parts 12a, 12b start timing control parts 13a, 13b, operate memories 14a, 14b, and execute each memory operation which has been requested. On the other hand, display signals showing the operations are transferred to collating parts 15a, 15b through signal lines 16a, 16b and 17a, 17b from the control parts 12a, 12b, 13a and 13b, compared and collated, and each operation status is checked. In this case, when dissidence is detected, it is displayed on a dissidence displaying circuit.
JP55178488A 1980-12-17 1980-12-17 Double storage device control system Granted JPS57101950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55178488A JPS57101950A (en) 1980-12-17 1980-12-17 Double storage device control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55178488A JPS57101950A (en) 1980-12-17 1980-12-17 Double storage device control system

Publications (2)

Publication Number Publication Date
JPS57101950A true JPS57101950A (en) 1982-06-24
JPS614128B2 JPS614128B2 (en) 1986-02-07

Family

ID=16049329

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55178488A Granted JPS57101950A (en) 1980-12-17 1980-12-17 Double storage device control system

Country Status (1)

Country Link
JP (1) JPS57101950A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6095663A (en) * 1983-10-31 1985-05-29 Toshiba Corp Automatic switching device of dual type magnetic disk device
JPS6182229U (en) * 1984-11-05 1986-05-31
JPS62219049A (en) * 1986-03-19 1987-09-26 Fujitsu Ltd Out data timing matching circuit
JPH05189325A (en) * 1992-01-16 1993-07-30 Railway Technical Res Inst Double system electronic computer
JPH09160836A (en) * 1995-12-13 1997-06-20 Nec Corp Memory parity error monitoring device
US7047450B2 (en) 2003-07-11 2006-05-16 Hitachi, Ltd. Storage system and a method for diagnosing failure of the storage system
EP1703400A2 (en) 2005-03-17 2006-09-20 Fujitsu Limited Dual storage apparatus and control method for the dual storage apparatus
WO2012169114A1 (en) * 2011-06-10 2012-12-13 日本電気株式会社 Semiconductor storage device, control method for same, and non-transitory computer readable medium in which control program is stored

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63238315A (en) * 1987-03-27 1988-10-04 Matsushita Electric Ind Co Ltd Burner

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6095663A (en) * 1983-10-31 1985-05-29 Toshiba Corp Automatic switching device of dual type magnetic disk device
JPS6182229U (en) * 1984-11-05 1986-05-31
JPH0431564Y2 (en) * 1984-11-05 1992-07-29
JPS62219049A (en) * 1986-03-19 1987-09-26 Fujitsu Ltd Out data timing matching circuit
JPH0476141B2 (en) * 1986-03-19 1992-12-02 Fujitsu Ltd
JP2731656B2 (en) * 1992-01-16 1998-03-25 財団法人鉄道総合技術研究所 Dual computer
JPH05189325A (en) * 1992-01-16 1993-07-30 Railway Technical Res Inst Double system electronic computer
JPH09160836A (en) * 1995-12-13 1997-06-20 Nec Corp Memory parity error monitoring device
US7047450B2 (en) 2003-07-11 2006-05-16 Hitachi, Ltd. Storage system and a method for diagnosing failure of the storage system
US7437615B2 (en) 2003-07-11 2008-10-14 Hitachi, Ltd. Storage system and a method for diagnosing failure of the storage system
EP1703400A2 (en) 2005-03-17 2006-09-20 Fujitsu Limited Dual storage apparatus and control method for the dual storage apparatus
US7467261B2 (en) 2005-03-17 2008-12-16 Fujitsu Limited Dual storage apparatus and control method for the dual storage apparatus
WO2012169114A1 (en) * 2011-06-10 2012-12-13 日本電気株式会社 Semiconductor storage device, control method for same, and non-transitory computer readable medium in which control program is stored

Also Published As

Publication number Publication date
JPS614128B2 (en) 1986-02-07

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