JPS57195383A - System controller - Google Patents

System controller

Info

Publication number
JPS57195383A
JPS57195383A JP56078155A JP7815581A JPS57195383A JP S57195383 A JPS57195383 A JP S57195383A JP 56078155 A JP56078155 A JP 56078155A JP 7815581 A JP7815581 A JP 7815581A JP S57195383 A JPS57195383 A JP S57195383A
Authority
JP
Japan
Prior art keywords
control
system controller
main storage
storage part
master
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
JP56078155A
Other languages
Japanese (ja)
Other versions
JPH0150039B2 (en
Inventor
Rikuro Yoshimoto
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56078155A priority Critical patent/JPS57195383A/en
Publication of JPS57195383A publication Critical patent/JPS57195383A/en
Publication of JPH0150039B2 publication Critical patent/JPH0150039B2/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

Abstract

PURPOSE:To obtain the complete continuity of operation while avoiding deterioration of system performance, by synchronizing the refreshment control of plural main storage devices with one system controller. CONSTITUTION:Pieces of information showing whether main storage devices 1 and 2 are effective or ineffective, which is used as a master and which is used as a slave, and whether doubled control is exercised or not are stored in the status storage part 7 of a system controller 3. According to the pieces of effective-ineffective information on the main storage parts 1 and 2, the status storage part 7 outputs control signals 10 and 10' to control reception parts 6 and 6'. A refreshment control part 8 decides on the contents of refreshing operation by a control signal 11 showing a doubled control state and a control signal 11' for master/slave discrimination from said status storage part 7.
JP56078155A 1981-05-25 1981-05-25 System controller Granted JPS57195383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56078155A JPS57195383A (en) 1981-05-25 1981-05-25 System controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56078155A JPS57195383A (en) 1981-05-25 1981-05-25 System controller

Publications (2)

Publication Number Publication Date
JPS57195383A true JPS57195383A (en) 1982-12-01
JPH0150039B2 JPH0150039B2 (en) 1989-10-26

Family

ID=13654019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56078155A Granted JPS57195383A (en) 1981-05-25 1981-05-25 System controller

Country Status (1)

Country Link
JP (1) JPS57195383A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0294194A (en) * 1988-09-30 1990-04-04 Nec Corp Interleave buffer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0294194A (en) * 1988-09-30 1990-04-04 Nec Corp Interleave buffer

Also Published As

Publication number Publication date
JPH0150039B2 (en) 1989-10-26

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