JPS57143799A - Storage device - Google Patents

Storage device

Info

Publication number
JPS57143799A
JPS57143799A JP56026773A JP2677381A JPS57143799A JP S57143799 A JPS57143799 A JP S57143799A JP 56026773 A JP56026773 A JP 56026773A JP 2677381 A JP2677381 A JP 2677381A JP S57143799 A JPS57143799 A JP S57143799A
Authority
JP
Japan
Prior art keywords
error
information
bus
register
readout
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.)
Pending
Application number
JP56026773A
Other languages
Japanese (ja)
Inventor
Shiro Hoshi
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 JP56026773A priority Critical patent/JPS57143799A/en
Publication of JPS57143799A publication Critical patent/JPS57143799A/en
Pending 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
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076—Parity data used in redundant arrays of independent storages, e.g. in RAID systems
    • 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
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Detection And Correction Of Errors (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To achieve quick information processing with a simple constitution, by providing a bus transmitting readout data to an access device directly so that an error detecting and correcting mechanism do not interfer this bus. CONSTITUTION:The content of a storage section 14 of a storage device 30 is read out throug the access of a processor 11, and readout information is transmitted to the device 11 directly via a data transferring bus 20 not through the error detecting and correcting mechanism and stored in a data register 12. In this case, if readout information has errors, the error is given to the device 11 via a humming circuit 13 of a correcting device 10 and the storage section 14 is inhibited. The content of storage of the register 12 is error-corrected via a syndrome register 19, a decoder 17, and an error correction circuit 18, outputted on a bus 22 and transferred to the device 11. With a simple constitution due to unnecessary switching circuits, if no error is present, information is transferred directly from the storage section, and the result of humming check is inputted not through a readout register at error generation and a storage device which can achieve quick processing of information can be obtained.
JP56026773A 1981-02-27 1981-02-27 Storage device Pending JPS57143799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56026773A JPS57143799A (en) 1981-02-27 1981-02-27 Storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56026773A JPS57143799A (en) 1981-02-27 1981-02-27 Storage device

Publications (1)

Publication Number Publication Date
JPS57143799A true JPS57143799A (en) 1982-09-06

Family

ID=12202612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56026773A Pending JPS57143799A (en) 1981-02-27 1981-02-27 Storage device

Country Status (1)

Country Link
JP (1) JPS57143799A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165300A (en) * 1983-03-10 1984-09-18 Fujitsu Ltd Memory fault correcting system
JPS6266354A (en) * 1985-09-18 1987-03-25 Nec Corp Storage device
JPS63121933A (en) * 1986-11-12 1988-05-26 Hitachi Ltd Error detecting and correcting system
JPS63240658A (en) * 1987-03-27 1988-10-06 Nec Corp Memory device
JPH05334110A (en) * 1992-06-04 1993-12-17 Nec Corp Delay error correcting device
JPH0784814A (en) * 1993-09-16 1995-03-31 Nec Corp Error detecting device of computer
JP2008517359A (en) * 2004-10-15 2008-05-22 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ Apparatus and method for checking and determining control values

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165300A (en) * 1983-03-10 1984-09-18 Fujitsu Ltd Memory fault correcting system
JPS6266354A (en) * 1985-09-18 1987-03-25 Nec Corp Storage device
JPS63121933A (en) * 1986-11-12 1988-05-26 Hitachi Ltd Error detecting and correcting system
JPS63240658A (en) * 1987-03-27 1988-10-06 Nec Corp Memory device
JPH05334110A (en) * 1992-06-04 1993-12-17 Nec Corp Delay error correcting device
JPH0784814A (en) * 1993-09-16 1995-03-31 Nec Corp Error detecting device of computer
JP2008517359A (en) * 2004-10-15 2008-05-22 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ Apparatus and method for checking and determining control values

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