JPS5750193A - Backup system for installed data - Google Patents

Backup system for installed data

Info

Publication number
JPS5750193A
JPS5750193A JP12628280A JP12628280A JPS5750193A JP S5750193 A JPS5750193 A JP S5750193A JP 12628280 A JP12628280 A JP 12628280A JP 12628280 A JP12628280 A JP 12628280A JP S5750193 A JPS5750193 A JP S5750193A
Authority
JP
Japan
Prior art keywords
memory device
installed data
mem0
main body
failure
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
JP12628280A
Other languages
Japanese (ja)
Inventor
Yukio Shigeta
Hidekazu Igarashi
Norio Nagai
Hanji Kobayashi
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.)
Meisei Electric Co Ltd
Original Assignee
Meisei 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 Meisei Electric Co Ltd filed Critical Meisei Electric Co Ltd
Priority to JP12628280A priority Critical patent/JPS5750193A/en
Publication of JPS5750193A publication Critical patent/JPS5750193A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
    • H04Q3/54541—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme using multi-processor systems
    • H04Q3/54558—Redundancy, stand-by

Abstract

PURPOSE:To simplify the maintenance and to enable the restart of exchange processing at failure quickly, by storing the installed data in two internal memory device of the same functions. CONSTITUTION:If a failure takes place in the 1st memory device MEM0, the readout of the installed data by a central controller CPU is inputted for the switching instruction of the memory device with a keyboard KBD so that it is made from the 2nd memory device MEM1. After that, the MEM0 caused by the failure is removed from an electronic exchanger main body, and a new memory device is fitted to the main body as the 1st memory device MEM0. Since the installed data is not stored in this new memory device, after it is fitted to the exchanger main body, the copy instruction of the installed data is transmitted to the central controller CPU with the keyboard KBD. Thus, the installed data stored in the MEM1 can be copied to the MEM0 newly.
JP12628280A 1980-09-11 1980-09-11 Backup system for installed data Pending JPS5750193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12628280A JPS5750193A (en) 1980-09-11 1980-09-11 Backup system for installed data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12628280A JPS5750193A (en) 1980-09-11 1980-09-11 Backup system for installed data

Publications (1)

Publication Number Publication Date
JPS5750193A true JPS5750193A (en) 1982-03-24

Family

ID=14931348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12628280A Pending JPS5750193A (en) 1980-09-11 1980-09-11 Backup system for installed data

Country Status (1)

Country Link
JP (1) JPS5750193A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267242A (en) * 1991-09-05 1993-11-30 International Business Machines Corporation Method and apparatus for substituting spare memory chip for malfunctioning memory chip with scrubbing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267242A (en) * 1991-09-05 1993-11-30 International Business Machines Corporation Method and apparatus for substituting spare memory chip for malfunctioning memory chip with scrubbing

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