JPS5688549A - Multiplex system for external memory device in electronic computer system - Google Patents
Multiplex system for external memory device in electronic computer systemInfo
- Publication number
- JPS5688549A JPS5688549A JP16636079A JP16636079A JPS5688549A JP S5688549 A JPS5688549 A JP S5688549A JP 16636079 A JP16636079 A JP 16636079A JP 16636079 A JP16636079 A JP 16636079A JP S5688549 A JPS5688549 A JP S5688549A
- Authority
- JP
- Japan
- Prior art keywords
- external memory
- memory device
- electronic computer
- computer system
- information
- 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
Links
Abstract
PURPOSE: To enable continuous operation without stopping an electronic computer system by transferring information in the electronic computer system fo one external memory device while storing the information in the other external memory device.
CONSTITUTION: External memory devices 31 and 32 are provided in parallel to CPU1 and handled equally and information from signal line 41 is processed as to both devices 31 and 32. Writing information of the same contents in both devices 31 and 32 equally makes it possible to continue the operation of the electronic computer system even if one external memory device stopps due to a fault.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16636079A JPS5688549A (en) | 1979-12-21 | 1979-12-21 | Multiplex system for external memory device in electronic computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16636079A JPS5688549A (en) | 1979-12-21 | 1979-12-21 | Multiplex system for external memory device in electronic computer system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5688549A true JPS5688549A (en) | 1981-07-18 |
Family
ID=15829937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16636079A Pending JPS5688549A (en) | 1979-12-21 | 1979-12-21 | Multiplex system for external memory device in electronic computer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5688549A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5134619A (en) * | 1990-04-06 | 1992-07-28 | Sf2 Corporation | Failure-tolerant mass storage system |
US5140592A (en) * | 1990-03-02 | 1992-08-18 | Sf2 Corporation | Disk array system |
US5146574A (en) * | 1989-06-27 | 1992-09-08 | Sf2 Corporation | Method and circuit for programmable selecting a variable sequence of element using write-back |
US5202856A (en) * | 1990-04-05 | 1993-04-13 | Micro Technology, Inc. | Method and apparatus for simultaneous, interleaved access of multiple memories by multiple ports |
US5212785A (en) * | 1990-04-06 | 1993-05-18 | Micro Technology, Inc. | Apparatus and method for controlling data flow between a computer and memory devices |
US5214778A (en) * | 1990-04-06 | 1993-05-25 | Micro Technology, Inc. | Resource management in a multiple resource system |
US5315708A (en) * | 1990-02-28 | 1994-05-24 | Micro Technology, Inc. | Method and apparatus for transferring data through a staging memory |
US5414818A (en) * | 1990-04-06 | 1995-05-09 | Mti Technology Corporation | Method and apparatus for controlling reselection of a bus by overriding a prioritization protocol |
US5461723A (en) * | 1990-04-05 | 1995-10-24 | Mit Technology Corp. | Dual channel data block transfer bus |
US5469453A (en) * | 1990-03-02 | 1995-11-21 | Mti Technology Corporation | Data corrections applicable to redundant arrays of independent disks |
-
1979
- 1979-12-21 JP JP16636079A patent/JPS5688549A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146574A (en) * | 1989-06-27 | 1992-09-08 | Sf2 Corporation | Method and circuit for programmable selecting a variable sequence of element using write-back |
US5349686A (en) * | 1989-06-27 | 1994-09-20 | Mti Technology Corporation | Method and circuit for programmably selecting a variable sequence of elements using write-back |
US5315708A (en) * | 1990-02-28 | 1994-05-24 | Micro Technology, Inc. | Method and apparatus for transferring data through a staging memory |
US5140592A (en) * | 1990-03-02 | 1992-08-18 | Sf2 Corporation | Disk array system |
US5469453A (en) * | 1990-03-02 | 1995-11-21 | Mti Technology Corporation | Data corrections applicable to redundant arrays of independent disks |
US5202856A (en) * | 1990-04-05 | 1993-04-13 | Micro Technology, Inc. | Method and apparatus for simultaneous, interleaved access of multiple memories by multiple ports |
US5461723A (en) * | 1990-04-05 | 1995-10-24 | Mit Technology Corp. | Dual channel data block transfer bus |
US5134619A (en) * | 1990-04-06 | 1992-07-28 | Sf2 Corporation | Failure-tolerant mass storage system |
US5212785A (en) * | 1990-04-06 | 1993-05-18 | Micro Technology, Inc. | Apparatus and method for controlling data flow between a computer and memory devices |
US5214778A (en) * | 1990-04-06 | 1993-05-25 | Micro Technology, Inc. | Resource management in a multiple resource system |
US5361347A (en) * | 1990-04-06 | 1994-11-01 | Mti Technology Corporation | Resource management in a multiple resource system where each resource includes an availability state stored in a memory of the resource |
US5414818A (en) * | 1990-04-06 | 1995-05-09 | Mti Technology Corporation | Method and apparatus for controlling reselection of a bus by overriding a prioritization protocol |
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