JPS58200500A - Storage device - Google Patents

Storage device

Info

Publication number
JPS58200500A
JPS58200500A JP57084580A JP8458082A JPS58200500A JP S58200500 A JPS58200500 A JP S58200500A JP 57084580 A JP57084580 A JP 57084580A JP 8458082 A JP8458082 A JP 8458082A JP S58200500 A JPS58200500 A JP S58200500A
Authority
JP
Japan
Prior art keywords
write
readout
register
circuit
control
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
JP57084580A
Other languages
Japanese (ja)
Inventor
Kenzo Masumoto
Masaru Katagiri
Original Assignee
Nec Corp
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 Nec Corp filed Critical Nec Corp
Priority to JP57084580A priority Critical patent/JPS58200500A/en
Publication of JPS58200500A publication Critical patent/JPS58200500A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076Parity data used in redundant arrays of independent storages, e.g. in RAID systems
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices

Abstract

PURPOSE:To attain sectioning of position in failure, by reading out data at a write control section and a readout control section respectively in the timing period when they are not in use and checking the error in write information. CONSTITUTION:During the period when the readout control using a bus via a readout register 18 and a readout data selecting circuit 24 in a refresh period without accessing from a CPU is not performed, when the preceding write information stored in a write register 16 is checked for humming at a readout control circuit 19 and an error is detected, the information is stored in an error register 21. During where succeeding write control is not done, the content of the register 21 is humming-checked at a write control circuit 140 and a fialure of the circuit 140 is extracted. Similarly, the failure in the circuit 19 and a memory module is extracted and a storage device sectioning the point in failure is attained.
JP57084580A 1982-05-18 1982-05-18 Storage device Pending JPS58200500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57084580A JPS58200500A (en) 1982-05-18 1982-05-18 Storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57084580A JPS58200500A (en) 1982-05-18 1982-05-18 Storage device

Publications (1)

Publication Number Publication Date
JPS58200500A true JPS58200500A (en) 1983-11-22

Family

ID=13834608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57084580A Pending JPS58200500A (en) 1982-05-18 1982-05-18 Storage device

Country Status (1)

Country Link
JP (1) JPS58200500A (en)

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