JPS5744298A - Control system of patrol action - Google Patents

Control system of patrol action

Info

Publication number
JPS5744298A
JPS5744298A JP55119366A JP11936680A JPS5744298A JP S5744298 A JPS5744298 A JP S5744298A JP 55119366 A JP55119366 A JP 55119366A JP 11936680 A JP11936680 A JP 11936680A JP S5744298 A JPS5744298 A JP S5744298A
Authority
JP
Japan
Prior art keywords
patrol
line mode
storage devices
request generating
simultaneous
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
JP55119366A
Other languages
Japanese (ja)
Inventor
Takahiro Sakuraba
Shozo Taniguchi
Kiyokatsu Iijima
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP55119366A priority Critical patent/JPS5744298A/en
Publication of JPS5744298A publication Critical patent/JPS5744298A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing

Landscapes

  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To give a simultaneous patrol to all storage devices in the on-line mode, by installing a patrol request generating circuit also at the side of a processor to carry out the control for the storage device in the on-line mode. CONSTITUTION:Storage devices 1', 2', etc. are patrolled in the off-line mode by each of incorporated patrol request generating circuits 12, 22, etc. respectively, and the erasion of the stored contents is prevented even in the off-line mode. On the other hand, a patrol request generating circuit 32 is provided also at the side of a processor 3'. Thus the devces 1', 2', etc. select the circuit 32 via the selecting circuits 15 and 25 respectively to perform a patrol interruption. Therefore, a simultaneous patrol is possible for all storage devices in the on-line mode. As a fesult, the loss time due to the access time by the patrol can be reduced to increase the processing speed of information.
JP55119366A 1980-08-29 1980-08-29 Control system of patrol action Pending JPS5744298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55119366A JPS5744298A (en) 1980-08-29 1980-08-29 Control system of patrol action

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55119366A JPS5744298A (en) 1980-08-29 1980-08-29 Control system of patrol action

Publications (1)

Publication Number Publication Date
JPS5744298A true JPS5744298A (en) 1982-03-12

Family

ID=14759712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55119366A Pending JPS5744298A (en) 1980-08-29 1980-08-29 Control system of patrol action

Country Status (1)

Country Link
JP (1) JPS5744298A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519214A (en) * 1983-01-17 1985-05-28 Tokyo Shibaura Denki Kabushiki Kaisha Air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519214A (en) * 1983-01-17 1985-05-28 Tokyo Shibaura Denki Kabushiki Kaisha Air conditioner

Similar Documents

Publication Publication Date Title
JPS5744298A (en) Control system of patrol action
JPS5730170A (en) Buffer memory control system
JPS54148334A (en) Memory protection system
JPS56161202A (en) Commodity control device
JPS5731064A (en) Space control system in direct access storage device
JPS52142441A (en) Memory . access control method
JPS6431238A (en) System for controlling store buffer
JPS56143583A (en) Buffer memory control system
JPS536982A (en) Working time calculator for numerical controlled machine tool
JPS56135252A (en) Computer system for process control
JPS54125932A (en) Protective device for memory unit
JPS56135260A (en) Inter-processor information transfer system
JPS54148333A (en) Memory protection system
JPS5750378A (en) Control system of data processor
JPS57120284A (en) High-speed buffer memory control system
JPS5741748A (en) Program debugging system of data processor
JPS57201949A (en) Secondary storage controller
JPS54139446A (en) Process mode control unit
JPS6472242A (en) Self-diagnosing device for computer for control
JPS52133738A (en) Caluculation control system
JPS5792476A (en) Cash memory controller
JPS57176442A (en) Information processing system
JPS56127231A (en) Controlling system of data transfer
JPS57100547A (en) Log-out control system
JPS5530756A (en) Small size electronic calculator