JPH07509088A - フォールトトレラント・コンピュータシステム - Google Patents
フォールトトレラント・コンピュータシステムInfo
- Publication number
- JPH07509088A JPH07509088A JP6504273A JP50427394A JPH07509088A JP H07509088 A JPH07509088 A JP H07509088A JP 6504273 A JP6504273 A JP 6504273A JP 50427394 A JP50427394 A JP 50427394A JP H07509088 A JPH07509088 A JP H07509088A
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- Prior art keywords
- bus
- cpu
- data
- central processing
- line
- 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.)
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Classifications
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- 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
- G06F11/1629—Error detection by comparing the output of redundant processing systems
- G06F11/1654—Error detection by comparing the output of redundant processing systems where the output of only one of the redundant processing components can drive the attached hardware, e.g. memory or I/O
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- 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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0709—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in a distributed system consisting of a plurality of standalone computer nodes, e.g. clusters, client-server systems
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- 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
- G06F11/1604—Error detection or correction of the data by redundancy in hardware where the fault affects the clock signals of a processing unit and the redundancy is at or within the level of clock signal generation hardware
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- 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
- G06F11/1629—Error detection by comparing the output of redundant processing systems
- G06F11/165—Error detection by comparing the output of redundant processing systems with continued operation after detection of the error
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- 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
- G06F11/1658—Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit
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- 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
- G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
- G06F11/181—Eliminating the failing redundant component
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- 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
- G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
- G06F11/183—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits by voting, the voting not being performed by the redundant components
- G06F11/184—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits by voting, the voting not being performed by the redundant components where the redundant components implement processing functionality
- G06F11/185—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits by voting, the voting not being performed by the redundant components where the redundant components implement processing functionality and the voting is itself performed redundantly
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- 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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/079—Root cause analysis, i.e. error or fault diagnosis
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- 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
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
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- 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
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
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- 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
- G06F11/1629—Error detection by comparing the output of redundant processing systems
- G06F11/1641—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components
- G06F11/1645—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components and the comparison itself uses redundant hardware
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- 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
- G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
- G06F11/1679—Temporal synchronisation or re-synchronisation of redundant processing components at clock signal level
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- 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
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Hardware Redundancy (AREA)
- Debugging And Monitoring (AREA)
- Multi Processors (AREA)
Abstract
Description
Claims (10)
- 1.主データバスと、関連する読出し書き込み用メモリをそれぞれ有する複数の プロセッサ手段とからなり、前記各プロセッサ手段が、ローカルデータバスと、 前記ローカルデータバスを前記主データバスに相互接続するデータ転送インタフ ェースとを有し、前記データ転送インタフェースが、前記主データバスに存在す るデータ及び/又はアドレスを、前記各ローカルデータバスに存在するデータ及 び/又はアドレスと比較するように構成され、かつ更に比較した前記データ及び /又はアドレスに何らかの不整合が検出されると、前記全プロセッサ手段に割込 み信号を印加するように構成されたコンパレータ手段からなることを特徴とする フォールトトレラント・コンピュータシステム。
- 2.各中央処理手段が、更にその前記ローカルデータバスに接続された第1の複 数のハードウェア要素からなり、前記コンパレータ手段が、前記主データバスに あるデータを前記ローカルデータバスにあるデータと比較し、かつそれに応答し て復数の状態出力信号を生成し、前記データ転送インタフェース即ち第1バスイ ンタフェースの一部分であるパリティ検査回路からなり、前記パリティ検査回路 が、前記主データバスのデータ線を監視し、かつそれに応答してパリティ出力信 号を生成し、前記パリティ出力信号が、前記コンパレータ手段への入力信号とし て使用され、第2のバスインタフェースを介して前記ローカルデータバスに接続 された専用データバスと、前記専用データバスに接続された第2の複数のバード ウェア要素と、他の前記中央処理手段の中央処理装置と概ね同期して動作する中 央処理装置と、前記第1及び第2のマスインタフェースに接続されかつそれらを 制御する制御論理回路とからなり、前記制御論理回路が、他の全ての前記中央処 理手段から前記状態出力信号を入力信号として受け取り、かつそれに応答して、 故障が生じているかどうかを前記中央処理装置に示す制御論理出力信号を生成す ることを特徴とする第1請求項に記載のフォールトトレラント・コンピュータシ ステム。
- 3.前記各中央処理装置が、68040集積回路からなることを特徴とする第2 請求項に記載のフォールトトレラント・コンピュータシステム。
- 4.前記第1の複数のハードウェア要素が、第1の読出し書き込み用メモリと、 読出し専用メモリと、第2の読出し書き込み用メモリとからなることを特徴とす る第2請求項又は第3請求項に記載のフォールトトレラント・コンピュータシス テム。
- 5.前記第2の読出し書き込み用メモリが、データが書き込まれている前記第1 の読出し書き込み用メモリ内の記憶場所に対応して情報を記憶するためのダーテ ィ読出し書き込み用メモリからなり、前記ダーティ読出し書き込み用メモリによ って、ある前記中央処理手段から別の前記中央処理手段への複写が容易になるこ とを特徴とする第3請求項又は第4請求項記載のフォールトトレラント・コンピ ュータシステム。
- 6.前記第2の複数のバードウェア要素が、読出し書き込み用メモリと、非同期 レシーバ/トランスミッタ回路と、タイマ回路と、複数の制御・状態レジスタと 、別の読出し書き込み用メモリとからなることを特徴とする第4請求項又は第5 請求項に記載のフォールトトレラント・コンピュータシステム。
- 7.前記別の読出し書き込み用メモリが、欠陥を有する又は存在しないコンピュ ータサブシステムを有する前記主データバスのインタフェーススロットに対応し て情報を記憶するように構成されていることを特徴とする第6請求項に記載のフ ォールトトレラント・コンピュータシステム。
- 8.前記非同期レシーバ/トランスミッタ回路が、RS−232インタフェース を提供する2692集積回路からなることを特徴とする第6請求項又は第7請求 項に記載のフォールトトレラント・コンピュータシステム。
- 9.前記タイマ回路が9513集積回路からなることを特徴とする第6請求項乃 至第8請求項のいずれか記載のフォールトトレラント・コンピュータシステム。
- 10.コンピュータサブシステムを相互接続するための複数のインタフェースス ロットを有する主データパスと、前記インタフェーススロットによって前記主デ ータバスに接続された複数のコンピュータサブシステムと、概ね同期して動作す る複数の中央処理モジュールとからなり、前記中央処理モジュールが、前記主デ ータバスからの読出し及び該バスヘの書込みを行うことができるマスタ中央処理 モジュールを有し、前記マスタ中央処理モジュールが、最初に前記中央処理モジ ュールの中から任意に選択され、前記各中央処理モジュールが、前記主データバ スにあるデータを前記中央処理モジュールの副バスにあるデータと前記中央処理 モジュールが比較し、かつそれに応答して状態出力信号を生成することができる ようにする手段からなり、前記中央処理モジュールを相互接続する同期バスを備 え、前記同期バスが、前記各中央処理モジュールから他の前記各中央処理モジュ ールに前記状態出力信号を伝送する信号線からなり、ハードウェアの効果を減少 させるようにしたことを特徴とするフォールトトレラント・コンピュータシステ ム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9215212A GB2268817B (en) | 1992-07-17 | 1992-07-17 | A fault-tolerant computer system |
GB9215212.3 | 1992-07-17 | ||
PCT/GB1993/001514 WO1994002896A1 (en) | 1992-07-17 | 1993-07-19 | A fault-tolerant computer system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07509088A true JPH07509088A (ja) | 1995-10-05 |
JP3713554B2 JP3713554B2 (ja) | 2005-11-09 |
Family
ID=10718868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50427394A Expired - Lifetime JP3713554B2 (ja) | 1992-07-17 | 1993-07-19 | フォールトトレラント・コンピュータシステム |
Country Status (8)
Country | Link |
---|---|
US (12) | US5627965A (ja) |
EP (1) | EP0650615B1 (ja) |
JP (1) | JP3713554B2 (ja) |
AT (1) | ATE162898T1 (ja) |
AU (1) | AU4713493A (ja) |
DE (1) | DE69316755T2 (ja) |
GB (1) | GB2268817B (ja) |
WO (1) | WO1994002896A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015088103A (ja) * | 2013-11-01 | 2015-05-07 | 富士通株式会社 | 情報処理装置、及び、情報処理装置の制御方法 |
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US6049893A (en) | 2000-04-11 |
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