DE69721654T2 - Fehlereingrenzung - Google Patents

Fehlereingrenzung

Info

Publication number
DE69721654T2
DE69721654T2 DE69721654T DE69721654T DE69721654T2 DE 69721654 T2 DE69721654 T2 DE 69721654T2 DE 69721654 T DE69721654 T DE 69721654T DE 69721654 T DE69721654 T DE 69721654T DE 69721654 T2 DE69721654 T2 DE 69721654T2
Authority
DE
Germany
Prior art keywords
fault isolation
fault
isolation
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.)
Expired - Lifetime
Application number
DE69721654T
Other languages
English (en)
Other versions
DE69721654D1 (de
Inventor
Alan L Goodrum
Jeffrey S Autor
Paul R Culley
Joseph P Miller
Siamak Tavallaei
Barry S Basile
Elizabeth A Richard
Eric E Rose
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.)
Compaq Computer Corp
Original Assignee
Compaq Computer Corp
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 Compaq Computer Corp filed Critical Compaq Computer Corp
Application granted granted Critical
Publication of DE69721654D1 publication Critical patent/DE69721654D1/de
Publication of DE69721654T2 publication Critical patent/DE69721654T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G06F11/2002—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 where interconnections or communication control functionality are redundant
    • G06F11/2005—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 where interconnections or communication control functionality are redundant using redundant communication controllers
    • 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
    • G06F11/2002—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 where interconnections or communication control functionality are redundant
    • G06F11/2007—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 where interconnections or communication control functionality are redundant using redundant communication media
    • 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
    • G06F11/2002—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 where interconnections or communication control functionality are redundant
    • G06F11/2012—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 where interconnections or communication control functionality are redundant and using different communication protocols
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G06F11/2221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test input/output devices or peripheral units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
    • G06F11/3466—Performance evaluation by tracing or monitoring
    • G06F11/349—Performance evaluation by tracing or monitoring for interfaces, buses
    • 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
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
    • G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
DE69721654T 1996-06-05 1997-06-04 Fehlereingrenzung Expired - Lifetime DE69721654T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/658,750 US6032271A (en) 1996-06-05 1996-06-05 Method and apparatus for identifying faulty devices in a computer system

Publications (2)

Publication Number Publication Date
DE69721654D1 DE69721654D1 (de) 2003-06-12
DE69721654T2 true DE69721654T2 (de) 2003-12-04

Family

ID=24642524

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69721654T Expired - Lifetime DE69721654T2 (de) 1996-06-05 1997-06-04 Fehlereingrenzung

Country Status (5)

Country Link
US (3) US6032271A (de)
EP (1) EP0820012B1 (de)
JP (1) JPH10116208A (de)
DE (1) DE69721654T2 (de)
TW (1) TW378292B (de)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6032271A (en) * 1996-06-05 2000-02-29 Compaq Computer Corporation Method and apparatus for identifying faulty devices in a computer system
US6134665A (en) * 1998-01-20 2000-10-17 Digital Equipment Corporation Computer with remote wake up and transmission of a status packet when the computer fails a self test
US6226762B1 (en) * 1998-04-20 2001-05-01 National Instruments Corporation System and method for providing delayed start-up of an activity monitor in a distributed I/O system
US6138247A (en) * 1998-05-14 2000-10-24 Motorola, Inc. Method for switching between multiple system processors
US6463550B1 (en) 1998-06-04 2002-10-08 Compaq Information Technologies Group, L.P. Computer system implementing fault detection and isolation using unique identification codes stored in non-volatile memory
US6141757A (en) * 1998-06-22 2000-10-31 Motorola, Inc. Secure computer with bus monitoring system and methods
JP4132322B2 (ja) * 1998-12-16 2008-08-13 株式会社日立製作所 記憶制御装置およびその制御方法
WO2000051000A1 (fr) * 1999-02-24 2000-08-31 Hitachi, Ltd. Systeme informatique et procede pour gerer les perturbations affectant un systeme informatique
JP4371466B2 (ja) * 1999-04-15 2009-11-25 株式会社東芝 コンピュータシステム及びそのｉ／ｏ装置の制御方法
FI107207B (fi) * 1999-04-28 2001-06-15 Nokia Networks Oy Menetelmä, järjestelmä ja laite viallisen yksikön tunnistamiseksi
US6453429B1 (en) * 1999-04-29 2002-09-17 International Business Machines Corporation Method and apparatus for bus hang detection and identification of errant agent for fail safe access to trapped error information
US6813251B1 (en) * 1999-07-27 2004-11-02 Intel Corporation Split Transaction protocol for a bus system
FI19991735A (fi) * 1999-08-16 2001-02-17 Nokia Networks Oy Menetelmä ja laite tietokonejärjestelmän toimintavarmuuden parantamiseksi
US7266728B1 (en) * 1999-10-01 2007-09-04 Stmicroelectronics Ltd. Circuit for monitoring information on an interconnect
US7260745B1 (en) * 1999-10-01 2007-08-21 Stmicroelectronics Ltd. Detection of information on an interconnect
US6771664B1 (en) 1999-12-28 2004-08-03 Intel Corporation Transaction scheduling for a bus system in a multiple speed environment
JP2001222385A (ja) * 2000-02-10 2001-08-17 Hitachi Ltd 記憶装置および情報処理システム
US6636928B1 (en) * 2000-02-18 2003-10-21 Hewlett-Packard Development Company, L.P. Write posting with global ordering in multi-path systems
TW525053B (en) * 2000-03-29 2003-03-21 Mitac Int Corp Apparatus of PCI bus cycle single step interrupt debug card and its method
US6687851B1 (en) 2000-04-13 2004-02-03 Stratus Technologies Bermuda Ltd. Method and system for upgrading fault-tolerant systems
US6691257B1 (en) 2000-04-13 2004-02-10 Stratus Technologies Bermuda Ltd. Fault-tolerant maintenance bus protocol and method for using the same
US6708283B1 (en) 2000-04-13 2004-03-16 Stratus Technologies, Bermuda Ltd. System and method for operating a system with redundant peripheral bus controllers
US6633996B1 (en) 2000-04-13 2003-10-14 Stratus Technologies Bermuda Ltd. Fault-tolerant maintenance bus architecture
US6820213B1 (en) 2000-04-13 2004-11-16 Stratus Technologies Bermuda, Ltd. Fault-tolerant computer system with voter delay buffer
US6735715B1 (en) 2000-04-13 2004-05-11 Stratus Technologies Bermuda Ltd. System and method for operating a SCSI bus with redundant SCSI adaptors
US6802022B1 (en) 2000-04-14 2004-10-05 Stratus Technologies Bermuda Ltd. Maintenance of consistent, redundant mass storage images
US6901481B2 (en) * 2000-04-14 2005-05-31 Stratus Technologies Bermuda Ltd. Method and apparatus for storing transactional information in persistent memory
US7168032B2 (en) * 2000-12-15 2007-01-23 Intel Corporation Data synchronization for a test access port
US6769078B2 (en) * 2001-02-08 2004-07-27 International Business Machines Corporation Method for isolating an I2C bus fault using self bus switching device
US6886171B2 (en) 2001-02-20 2005-04-26 Stratus Technologies Bermuda Ltd. Caching for I/O virtual address translation and validation using device drivers
US6766479B2 (en) 2001-02-28 2004-07-20 Stratus Technologies Bermuda, Ltd. Apparatus and methods for identifying bus protocol violations
US7065672B2 (en) * 2001-03-28 2006-06-20 Stratus Technologies Bermuda Ltd. Apparatus and methods for fault-tolerant computing using a switching fabric
US20020184576A1 (en) * 2001-03-29 2002-12-05 International Business Machines Corporation Method and apparatus for isolating failing hardware in a PCI recoverable error
US6928583B2 (en) * 2001-04-11 2005-08-09 Stratus Technologies Bermuda Ltd. Apparatus and method for two computing elements in a fault-tolerant server to execute instructions in lockstep
JP2002312199A (ja) * 2001-04-13 2002-10-25 Mitsubishi Electric Corp 異常検知電子機器及び異常検知方法及び異常検知電子機器システム及び異常検知プログラム及び異常検知プログラムを記録したコンピュータ読み取り可能な記録媒体
US6996750B2 (en) * 2001-05-31 2006-02-07 Stratus Technologies Bermuda Ltd. Methods and apparatus for computer bus error termination
US7028124B2 (en) * 2001-09-26 2006-04-11 Intel Corporation Method and apparatus for dual queue head processing of interrupt endpoints
US6701403B2 (en) * 2001-10-01 2004-03-02 International Business Machines Corporation Service processor access of non-volatile memory
US20030101310A1 (en) * 2001-11-29 2003-05-29 Granato Jack L. Using a PC for testing devices
US6938188B1 (en) * 2002-01-29 2005-08-30 Advanced Digital Information Corporation Method for verifying functional integrity of computer hardware, particularly data storage devices
US20030191978A1 (en) * 2002-04-04 2003-10-09 International Business Machines Corporation Multiple fault location in a series of devices
US6971049B2 (en) * 2002-05-23 2005-11-29 International Business Machines Corporation Method and apparatus for detecting and isolating failures in equipment connected to a data bus
US6832286B2 (en) * 2002-06-25 2004-12-14 Hewlett-Packard Development Company, L.P. Memory auto-precharge
US6944796B2 (en) * 2002-06-27 2005-09-13 Intel Corporation Method and system to implement a system event log for system manageability
US7069477B2 (en) * 2002-10-30 2006-06-27 International Business Machines Corporation Methods and arrangements to enhance a bus
US7039736B2 (en) * 2003-01-15 2006-05-02 Hewlett-Packard Development Company, L.P. Systems and methods for accessing bus-mastered system resources
US7080288B2 (en) * 2003-04-28 2006-07-18 International Business Machines Corporation Method and apparatus for interface failure survivability using error correction
US7134052B2 (en) 2003-05-15 2006-11-07 International Business Machines Corporation Autonomic recovery from hardware errors in an input/output fabric
KR100503796B1 (ko) * 2003-06-05 2005-07-26 삼성전자주식회사 액세스 대기신호 오류 검출방법 및 장치
US7082488B2 (en) 2003-06-12 2006-07-25 Hewlett-Packard Development Company, L.P. System and method for presence detect and reset of a device coupled to an inter-integrated circuit router
US7206973B2 (en) * 2003-12-11 2007-04-17 Lsi Logic Corporation PCI validation
US20050193246A1 (en) * 2004-02-19 2005-09-01 Marconi Communications, Inc. Method, apparatus and software for preventing switch failures in the presence of faults
TW200537305A (en) * 2004-05-04 2005-11-16 Quanta Comp Inc Communication system, transmission device and the control method thereof
US7428665B2 (en) * 2004-11-12 2008-09-23 Lsi Corporation Methods and structure for detection and handling of catastrophic SCSI errors
US7904906B2 (en) * 2004-11-23 2011-03-08 Stratus Technologies Bermuda Ltd. Tracking modified pages on a computer system
US7496787B2 (en) * 2004-12-27 2009-02-24 Stratus Technologies Bermuda Ltd. Systems and methods for checkpointing
US7095217B1 (en) * 2005-03-31 2006-08-22 O2Micro International Limited Method circuitry and electronic device for controlling a variable output dc power source
US7478286B2 (en) * 2005-04-08 2009-01-13 Linear Technology Corporation Circuit and method of detecting and resolving stuck I2C buses
US20070028144A1 (en) * 2005-07-29 2007-02-01 Stratus Technologies Bermuda Ltd. Systems and methods for checkpointing
US20070038891A1 (en) * 2005-08-12 2007-02-15 Stratus Technologies Bermuda Ltd. Hardware checkpointing system
JP2007094706A (ja) * 2005-09-28 2007-04-12 Konica Minolta Business Technologies Inc データ処理装置、システムおよびケーブル接続異常対応方法
US20080148104A1 (en) * 2006-09-01 2008-06-19 Brinkman Michael G Detecting an Agent Generating a Parity Error on a PCI-Compatible Bus
US8006122B2 (en) * 2007-01-10 2011-08-23 International Business Machines Corporation Methods, systems, and computer products for detection of and policy directed resolution of signaling sympathy sickness in a multisystem cluster
TWI403920B (zh) * 2008-03-31 2013-08-01 Aten Int Co Ltd 多電腦切換器及可提供螢幕之擴充顯示識別資料之方法
US9077628B2 (en) * 2008-05-15 2015-07-07 Hewlett-Packard Development Company, L.P. Network device having a normal operational configuration and fail-safe configuration and method of operating the same
JP5539080B2 (ja) * 2010-07-15 2014-07-02 キヤノン株式会社 情報処理装置、情報処理システム、情報処理装置の制御方法、通信状態確認方法、及びプログラム
CN102955718B (zh) * 2011-08-17 2016-02-24 赛恩倍吉科技顾问（深圳）有限公司 服务器保护系统
CN102628921B (zh) * 2012-03-01 2014-12-03 华为技术有限公司 一种集成电路及对集成电路中总线状态进行监控的方法
JP2014095994A (ja) * 2012-11-08 2014-05-22 Azbil Corp 入出力機器、システムおよびデバイス
US9251002B2 (en) 2013-01-15 2016-02-02 Stratus Technologies Bermuda Ltd. System and method for writing checkpointing data
US9267965B2 (en) * 2013-11-19 2016-02-23 Advantest Corporation Flexible test site synchronization
US9588844B2 (en) 2013-12-30 2017-03-07 Stratus Technologies Bermuda Ltd. Checkpointing systems and methods using data forwarding
JP6518672B2 (ja) 2013-12-30 2019-05-22 ストラタス・テクノロジーズ・バミューダ・リミテッド 動的チェックポインティングシステムおよび方法
US9760442B2 (en) 2013-12-30 2017-09-12 Stratus Technologies Bermuda Ltd. Method of delaying checkpoints by inspecting network packets
US9830287B2 (en) 2015-02-24 2017-11-28 Red Hat Israel, Ltd. Determination of a device function asserting a detected spurious interrupt
EP3279796B1 (de) * 2016-08-02 2020-07-15 NXP USA, Inc. Ressourcenzugangsverwaltungskomponente und verfahren dafür
US10691519B2 (en) * 2016-09-15 2020-06-23 International Business Machines Corporation Hang detection and recovery
CN110474686B (zh) * 2018-05-11 2022-09-16 佛山市顺德区顺达电脑厂有限公司 网络交换装置及其运作方法
CN109491951B (zh) * 2018-09-28 2022-05-10 超聚变数字技术有限公司 一种配置数据的方法以及计算设备
CN112306781B (zh) * 2020-11-20 2022-08-19 新华三大数据技术有限公司 一种线程故障处理方法、装置、介质及设备

Family Cites Families (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810120A (en) * 1971-02-12 1974-05-07 Honeywell Inf Systems Automatic deactivation device
US4047157A (en) * 1974-02-01 1977-09-06 Digital Equipment Corporation Secondary storage facility for data processing
US4145734A (en) * 1975-04-22 1979-03-20 Compagnie Honeywell Bull (Societe Anonyme) Method and apparatus for implementing the test of computer functional units
FR2319264A1 (fr) * 1975-07-22 1977-02-18 Labo Cent Telecommunicat Systeme de commande perfectionne d'un equipement de commutation
US4347563A (en) * 1980-06-16 1982-08-31 Forney Engineering Company Industrial control system
US4381543A (en) * 1981-02-02 1983-04-26 International Business Machines Corporation Controller port switch arrangement for sharing stored data among different systems
US4597084A (en) * 1981-10-01 1986-06-24 Stratus Computer, Inc. Computer memory apparatus
US4486826A (en) * 1981-10-01 1984-12-04 Stratus Computer, Inc. Computer peripheral control apparatus
US4459693A (en) * 1982-01-26 1984-07-10 Genrad, Inc. Method of and apparatus for the automatic diagnosis of the failure of electrical devices connected to common bus nodes and the like
JPS58136473A (ja) * 1982-02-08 1983-08-13 Hitachi Ltd プリント装置
US4514845A (en) * 1982-08-23 1985-04-30 At&T Bell Laboratories Method and apparatus for bus fault location
US4590554A (en) * 1982-11-23 1986-05-20 Parallel Computers Systems, Inc. Backup fault tolerant computer system
US4710926A (en) * 1985-12-27 1987-12-01 American Telephone And Telegraph Company, At&T Bell Laboratories Fault recovery in a distributed processing system
US4819159A (en) * 1986-08-29 1989-04-04 Tolerant Systems, Inc. Distributed multiprocess transaction processing system and method
JPS6375963A (ja) * 1986-09-19 1988-04-06 Hitachi Ltd システム回復方式
JP2834122B2 (ja) * 1987-07-08 1998-12-09 株式会社日立製作所 制御装置
US4857833A (en) * 1987-08-27 1989-08-15 Teradyne, Inc. Diagnosis of faults on circuit board
EP0306211A3 (de) * 1987-09-04 1990-09-26 Digital Equipment Corporation Synchronisiertes Doppelrechnersystem
JPH0746322B2 (ja) * 1988-05-23 1995-05-17 日本電気株式会社 障害装置特定システム
US4951283A (en) * 1988-07-08 1990-08-21 Genrad, Inc. Method and apparatus for identifying defective bus devices
US5293586A (en) * 1988-09-30 1994-03-08 Hitachi, Ltd. Data processing system for development of outline fonts
US4943919A (en) * 1988-10-17 1990-07-24 The Boeing Company Central maintenance computer system and fault data handling method
US4972457A (en) * 1989-01-19 1990-11-20 Spectrum Information Technologies, Inc. Portable hybrid communication system and methods
US5228046A (en) * 1989-03-10 1993-07-13 International Business Machines Fault tolerant computer memory systems and components employing dual level error correction and detection with disablement feature
WO1991008535A1 (en) * 1989-11-27 1991-06-13 Olin Corporation Method and apparatus for providing backup process control
JPH03268553A (ja) * 1990-03-16 1991-11-29 Fujitsu Ltd 無線電話経由の全二重パソコン通信システム
JPH0456455A (ja) * 1990-06-25 1992-02-24 Sharp Corp コードレス・ファクシミリ装置
JPH0456454A (ja) * 1990-06-25 1992-02-24 Sharp Corp コードレス・ファクシミリ装置
US5155729A (en) * 1990-05-02 1992-10-13 Rolm Systems Fault recovery in systems utilizing redundant processor arrangements
US5271013A (en) * 1990-05-09 1993-12-14 Unisys Corporation Fault tolerant computer system
JPH0451742A (ja) * 1990-06-20 1992-02-20 Fujitsu Ltd コードレス電話機
US5289589A (en) * 1990-09-10 1994-02-22 International Business Machines Corporation Automated storage library having redundant SCSI bus system
JPH04126423A (ja) * 1990-09-17 1992-04-27 Omron Corp データ処理システム
US5157663A (en) * 1990-09-24 1992-10-20 Novell, Inc. Fault tolerant computer system
JPH04354229A (ja) * 1991-05-30 1992-12-08 Hitachi Ltd コードレス電話機
WO1993009494A1 (en) * 1991-10-28 1993-05-13 Digital Equipment Corporation Fault-tolerant computer processing using a shadow virtual processor
JP3213766B2 (ja) * 1992-03-16 2001-10-02 株式会社日立製作所 レプリケートファイル更新システム
US5404465A (en) * 1992-03-18 1995-04-04 Aeg Transportation Systems, Inc. Method and apparatus for monitoring and switching over to a back-up bus in a redundant trainline monitor system
US5249218A (en) * 1992-04-06 1993-09-28 Spectrum Information Technologies, Inc. Programmable universal interface system
US5390324A (en) * 1992-10-02 1995-02-14 Compaq Computer Corporation Computer failure recovery and alert system
US5428766A (en) * 1992-12-01 1995-06-27 Digital Equipment Corporation Error detection scheme in a multiprocessor environment
US5581794A (en) * 1992-12-18 1996-12-03 Amdahl Corporation Apparatus for generating a channel time-out signal after 16.38 milliseconds
US5394526A (en) * 1993-02-01 1995-02-28 Lsc, Inc. Data server for transferring selected blocks of remote file to a distributed computer network involving only single data transfer operation
US5586294A (en) * 1993-03-26 1996-12-17 Digital Equipment Corporation Method for increased performance from a memory stream buffer by eliminating read-modify-write streams from history buffer
US5390326A (en) * 1993-04-30 1995-02-14 The Foxboro Company Local area network with fault detection and recovery
US5408649A (en) * 1993-04-30 1995-04-18 Quotron Systems, Inc. Distributed data access system including a plurality of database access processors with one-for-N redundancy
US5388247A (en) * 1993-05-14 1995-02-07 Digital Equipment Corporation History buffer control to reduce unnecessary allocations in a memory stream buffer
JP3249648B2 (ja) * 1993-07-19 2002-01-21 富士通株式会社 Ａｔｍ交換機及びその試験方法
US5446736A (en) * 1993-10-07 1995-08-29 Ast Research, Inc. Method and apparatus for connecting a node to a wireless network using a standard protocol
US5450578A (en) * 1993-12-23 1995-09-12 Unisys Corporation Method and apparatus for automatically routing around faults within an interconnect system
US5471634A (en) * 1994-03-29 1995-11-28 The United States Of America As Represented By The Secretary Of The Navy Network file server with automatic sensing means
US5471482A (en) * 1994-04-05 1995-11-28 Unisys Corporation VLSI embedded RAM test
US5526344A (en) * 1994-04-15 1996-06-11 Dsc Communications Corporation Multi-service switch for a telecommunications network
US5581482A (en) * 1994-04-26 1996-12-03 Unisys Corporation Performance monitor for digital computer system
US5566297A (en) * 1994-06-16 1996-10-15 International Business Machines Corporation Non-disruptive recovery from file server failure in a highly available file system for clustered computing environments
US5504882A (en) * 1994-06-20 1996-04-02 International Business Machines Corporation Fault tolerant data storage subsystem employing hierarchically arranged controllers
US5528749A (en) * 1994-08-05 1996-06-18 Thomson Consumer Electronics, Inc. Automatic instrument turn off/on for error correction
US5838899A (en) * 1994-09-20 1998-11-17 Stratus Computer Digital data processing methods and apparatus for fault isolation
US5664124A (en) * 1994-11-30 1997-09-02 International Business Machines Corporation Bridge between two buses of a computer system that latches signals from the bus for use on the bridge and responds according to the bus protocols
BR9509870A (pt) * 1994-12-08 1997-11-25 Intel Corp Método e aparelho para permitir a um processador acessar um componente externo através de um barramento privado ou um barramento compartílhado
US5594882A (en) * 1995-01-04 1997-01-14 Intel Corporation PCI split transactions utilizing dual address cycle
US5513314A (en) * 1995-01-27 1996-04-30 Auspex Systems, Inc. Fault tolerant NFS server system and mirroring protocol
US5832241A (en) * 1995-02-23 1998-11-03 Intel Corporation Data consistency across a bus transactions that impose ordering constraints
US5696895A (en) * 1995-05-19 1997-12-09 Compaq Computer Corporation Fault tolerant multiple network servers
EP0745941B1 (de) * 1995-06-02 2003-08-06 Sun Microsystems, Inc. System und Verfahren zur Bereitstellung einer flexiblen Speicherhierarchie
US5568437A (en) * 1995-06-20 1996-10-22 Vlsi Technology, Inc. Built-in self test for integrated circuits having read/write memory
US5771359A (en) * 1995-10-13 1998-06-23 Compaq Computer Corporation Bridge having a data buffer for each bus master
US5857116A (en) * 1995-10-27 1999-01-05 Compaq Computer Corporation Circuit for disabling an address masking control signal when a microprocessor is in a system management mode
US5754804A (en) * 1996-01-30 1998-05-19 International Business Machines Corporation Method and system for managing system bus communications in a data processing system
US5784558A (en) * 1996-04-26 1998-07-21 Integrated Network Corporation Method and apparatus for testing of extended ISDN BRI service
US6032271A (en) * 1996-06-05 2000-02-29 Compaq Computer Corporation Method and apparatus for identifying faulty devices in a computer system

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EP0820012B1 (de) 2003-05-07
EP0820012A3 (de) 1999-01-13
US6032271A (en) 2000-02-29
US6321286B1 (en) 2001-11-20
TW378292B (en) 2000-01-01
EP0820012A2 (de) 1998-01-21
JPH10116208A (ja) 1998-05-06
US6098137A (en) 2000-08-01
DE69721654D1 (de) 2003-06-12

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