JPS60148647U - CPU switching device with file protection function - Google Patents

CPU switching device with file protection function

Info

Publication number
JPS60148647U
JPS60148647U JP3526584U JP3526584U JPS60148647U JP S60148647 U JPS60148647 U JP S60148647U JP 3526584 U JP3526584 U JP 3526584U JP 3526584 U JP3526584 U JP 3526584U JP S60148647 U JPS60148647 U JP S60148647U
Authority
JP
Japan
Prior art keywords
cpu
switching device
protection function
file protection
cpu switching
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
JP3526584U
Other languages
Japanese (ja)
Inventor
工藤　要
石橋　敏秀
Original Assignee
株式会社日立製作所
株式会社日立コントロールシステムズ
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 株式会社日立製作所, 株式会社日立コントロールシステムズ filed Critical 株式会社日立製作所
Priority to JP3526584U priority Critical patent/JPS60148647U/en
Publication of JPS60148647U publication Critical patent/JPS60148647U/en
Pending legal-status Critical Current

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  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のＣＰＵ切換え方式を示すブロン　　　□
り図、第２図は本考案の一実施例のブロック図、第３図
、第４図は本考案めプログラム例の動作フローチャート
である。 １１・・・・・−ｃｐｕ、　４２・・・・・・多スク動
作監視タスク、４３・・・・・・ＣＰＵ切換えフラグ、
４４・・、・・・・タスクＥＸＩＴ処理プログラム、４
５・・・・・・ファイル、５１〜５ｎ・・・・・・アプ
リケーションタスク。Figure 1 shows the conventional CPU switching method.
2 is a block diagram of an embodiment of the present invention, and FIGS. 3 and 4 are operational flowcharts of an example program of the present invention. 11...-cpu, 42...Multi-sk operation monitoring task, 43...CPU switching flag,
44...Task EXIT processing program, 4
5...File, 51-5n...Application task.

Claims (1)

【実用新案登録請求の範囲】 ′共有メモリ４、ｃｐｔｙ間連絡用リンケージバスで互
いに接続し、オンライン業務を行なうＣＰＵと、オンラ
インＣＰＵのバックアップを行なうＣＰＵとで構成され
たマルチコンピュータシステムにおいて１ 、　　　　オペレータの要求によるＣＰＵ切換え時に、
切換え対象の前記オンラインＣＰＵのタスク動作を打切
ることな（ＣＰＵ切換えを行なう手段を設けたことを特
徴とするファイル保護機能をもｐＣＰＵ切換え装置。[Scope of Claim for Utility Model Registration] 'In a multi-computer system consisting of a shared memory 4, a CPU that performs online operations, and a CPU that backs up the online CPU, which are connected to each other by a linkage bus for communication between CPTYs, 1. An operator. When switching the CPU due to the request of
A pCPU switching device having a file protection function, characterized in that a means is provided for performing CPU switching without aborting the task operation of the online CPU to be switched.
JP3526584U 1984-03-14 1984-03-14 CPU switching device with file protection function Pending JPS60148647U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3526584U JPS60148647U (en) 1984-03-14 1984-03-14 CPU switching device with file protection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3526584U JPS60148647U (en) 1984-03-14 1984-03-14 CPU switching device with file protection function

Publications (1)

Publication Number Publication Date
JPS60148647U true JPS60148647U (en) 1985-10-02

Family

ID=30539388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3526584U Pending JPS60148647U (en) 1984-03-14 1984-03-14 CPU switching device with file protection function

Country Status (1)

Country Link
JP (1) JPS60148647U (en)

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