JPH01106958U - - Google Patents

Info

Publication number
JPH01106958U
JPH01106958U JP20011287U JP20011287U JPH01106958U JP H01106958 U JPH01106958 U JP H01106958U JP 20011287 U JP20011287 U JP 20011287U JP 20011287 U JP20011287 U JP 20011287U JP H01106958 U JPH01106958 U JP H01106958U
Authority
JP
Japan
Prior art keywords
backup
master
storage means
data
notification
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
JP20011287U
Other languages
Japanese (ja)
Other versions
JPH0620191Y2 (en
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 filed Critical
Priority to JP1987200112U priority Critical patent/JPH0620191Y2/en
Publication of JPH01106958U publication Critical patent/JPH01106958U/ja
Application granted granted Critical
Publication of JPH0620191Y2 publication Critical patent/JPH0620191Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Techniques For Improving Reliability Of Storages (AREA)

Description

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

第１図はこの考案の機能ブロツク図、第２図は
実施例の構成図、第３図は実施例の回路ブロツク
図、第４図は実施例のメモリ内容の一致化処理を
示すフローチヤートである。 ２……ＣＰＵ、３……ＲＡＭ、７……伝送制御
部、Ｍ……マスタ装置、ＢＭ……バツクアツプマ
スタ装置、Ｍ１……ＰＬＵ別売上合計メモリ。 Fig. 1 is a functional block diagram of this invention, Fig. 2 is a configuration diagram of an embodiment, Fig. 3 is a circuit block diagram of the embodiment, and Fig. 4 is a flowchart showing the memory content matching process of the embodiment. be. 2...CPU, 3...RAM, 7...Transmission control section, M...Master device, BM...Backup master device, M1...Sales total memory by PLU.

Claims (1)

【実用新案登録請求の範囲】 同一のデータを相互に記憶するマスタ記憶手段
を有するマスタ側と、バツクアツプ記憶手段を有
するバツクアツプ側とを備えたデータ処理装置に
おいて、 マスタ側、あるいはバツクアツプ側が故障から
回復した際、その旨を故障していない方のバツク
アツプ側、あるいはマスタ側へ通知する通知手段
と、 この通知手段からの通知に基づいて、故障して
いない方のバツクアツプ側のバツクアツプ記憶手
段、あるいはマスタ側のマスタ記憶手段中の、少
なくとも他方の故障中に更新されたデータを、故
障から回復した方のマスタ側のマスタ記憶手段、
あるいはバツクアツプ側のバツクアツプ記憶手段
に、所定単位で、順次、複写する第１の複写手段
と、 この第１の複写手段による複写中に、複写元の
バツクアツプ記憶手段、あるいはマスタ記憶手段
中の複写済みのデータが更新された際、更新後の
データをマスタ記憶手段、あるいはバツクアツプ
記憶手段に再複写する第２の複写手段と、 を備えたことを特徴とするデータ処理装置。[Scope of Claim for Utility Model Registration] In a data processing device equipped with a master side having a master storage means for mutually storing the same data and a backup side having a backup storage means, the master side or the backup side can recover from a failure. When a failure occurs, a notification means notifies the non-faulty backup side or the master side, and based on the notification from this notification means, the backup storage means of the non-faulty backup side or the master side. master storage means on the master side of the master side that has recovered from the failure;
Alternatively, a first copying means that sequentially copies data in predetermined units to a backup storage means on a backup side; A data processing device comprising: second copying means for recopying the updated data to a master storage means or a backup storage means when the data is updated.
JP1987200112U 1987-12-31 1987-12-31 Data processing device Expired - Lifetime JPH0620191Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987200112U JPH0620191Y2 (en) 1987-12-31 1987-12-31 Data processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987200112U JPH0620191Y2 (en) 1987-12-31 1987-12-31 Data processing device

Publications (2)

Publication Number Publication Date
JPH01106958U true JPH01106958U (en) 1989-07-19
JPH0620191Y2 JPH0620191Y2 (en) 1994-05-25

Family

ID=31490537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987200112U Expired - Lifetime JPH0620191Y2 (en) 1987-12-31 1987-12-31 Data processing device

Country Status (1)

Country Link
JP (1) JPH0620191Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012038253A (en) * 2010-08-11 2012-02-23 Sii Data Service Kk Order data management apparatus and order data management method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59220854A (en) * 1983-05-30 1984-12-12 Hitachi Ltd Online file copy method
JPS60134964A (en) * 1983-12-23 1985-07-18 Tokyo Electric Co Ltd Pos system
JPS6162918A (en) * 1984-09-05 1986-03-31 Nippon Telegr & Teleph Corp <Ntt> Restoration system for duplex file

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59220854A (en) * 1983-05-30 1984-12-12 Hitachi Ltd Online file copy method
JPS60134964A (en) * 1983-12-23 1985-07-18 Tokyo Electric Co Ltd Pos system
JPS6162918A (en) * 1984-09-05 1986-03-31 Nippon Telegr & Teleph Corp <Ntt> Restoration system for duplex file

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012038253A (en) * 2010-08-11 2012-02-23 Sii Data Service Kk Order data management apparatus and order data management method

Also Published As

Publication number Publication date
JPH0620191Y2 (en) 1994-05-25

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