AU4652493A - Remote dual copy of data in computer systems - Google Patents

Remote dual copy of data in computer systems

Info

Publication number
AU4652493A
AU4652493A AU46524/93A AU4652493A AU4652493A AU 4652493 A AU4652493 A AU 4652493A AU 46524/93 A AU46524/93 A AU 46524/93A AU 4652493 A AU4652493 A AU 4652493A AU 4652493 A AU4652493 A AU 4652493A
Authority
AU
Australia
Prior art keywords
data
computer systems
dual copy
remote dual
remote
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.)
Abandoned
Application number
AU46524/93A
Inventor
James Bergsten
James Bodwin
David King
William Nadzam
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.)
ANDOR SYSTEMS Inc
Original Assignee
ANDOR SYSTEMS Inc
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 ANDOR SYSTEMS Inc filed Critical ANDOR SYSTEMS Inc
Publication of AU4652493A publication Critical patent/AU4652493A/en
Abandoned 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
    • G06F11/2053—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 persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2071—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • G06F11/1458—Management of the backup or restore process
    • G06F11/1466—Management of the backup or restore process to make the backup process non-disruptive
    • 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
    • G06F11/2053—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 persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2071—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of controllers
    • G06F11/2074—Asynchronous techniques
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0806—Multiuser, multiprocessor or multiprocessing cache systems
    • G06F12/0815—Cache consistency protocols
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/70—Masking faults in memories by using spares or by reconfiguring
    • G11C29/74—Masking faults in memories by using spares or by reconfiguring using duplex memories, i.e. using dual copies
    • 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
    • G06F11/2053—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 persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—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 persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2066—Optimisation of the communication load

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
AU46524/93A 1992-06-18 1993-06-17 Remote dual copy of data in computer systems Abandoned AU4652493A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US90063692A 1992-06-18 1992-06-18
US900636 1992-06-18
PCT/US1993/005853 WO1994000816A1 (en) 1992-06-18 1993-06-17 Remote dual copy of data in computer systems

Publications (1)

Publication Number Publication Date
AU4652493A true AU4652493A (en) 1994-01-24

Family

ID=25412842

Family Applications (1)

Application Number Title Priority Date Filing Date
AU46524/93A Abandoned AU4652493A (en) 1992-06-18 1993-06-17 Remote dual copy of data in computer systems

Country Status (2)

Country Link
AU (1) AU4652493A (en)
WO (1) WO1994000816A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5544347A (en) * 1990-09-24 1996-08-06 Emc Corporation Data storage system controlled remote data mirroring with respectively maintained data indices
US5459857A (en) * 1992-05-15 1995-10-17 Storage Technology Corporation Fault tolerant disk array data storage subsystem
GB2284494B (en) * 1993-11-26 1998-09-09 Hitachi Ltd Distributed shared memory management system
US5799141A (en) * 1995-06-09 1998-08-25 Qualix Group, Inc. Real-time data protection system and method
US5680640A (en) 1995-09-01 1997-10-21 Emc Corporation System for migrating data by selecting a first or second transfer means based on the status of a data element map initialized to a predetermined state
US6029175A (en) * 1995-10-26 2000-02-22 Teknowledge Corporation Automatic retrieval of changed files by a network software agent
US5948062A (en) * 1995-10-27 1999-09-07 Emc Corporation Network file server using a cached disk array storing a network file directory including file locking information and data mover computers each having file system software for shared read-write file access
US6061504A (en) * 1995-10-27 2000-05-09 Emc Corporation Video file server using an integrated cached disk array and stream server computers
US5933603A (en) * 1995-10-27 1999-08-03 Emc Corporation Video file server maintaining sliding windows of a video data set in random access memories of stream server computers for immediate video-on-demand service beginning at any specified location
US6405294B1 (en) 1995-12-29 2002-06-11 Mci Communications Corporation Data center migration method and system using data mirroring
US5893140A (en) * 1996-08-14 1999-04-06 Emc Corporation File server having a file system cache and protocol for truly safe asynchronous writes
US6298386B1 (en) 1996-08-14 2001-10-02 Emc Corporation Network file server having a message collector queue for connection and connectionless oriented protocols
US6073209A (en) * 1997-03-31 2000-06-06 Ark Research Corporation Data storage controller providing multiple hosts with access to multiple storage subsystems
US5892915A (en) * 1997-04-25 1999-04-06 Emc Corporation System having client sending edit commands to server during transmission of continuous media from one clip in play list for editing the play list
US5974503A (en) * 1997-04-25 1999-10-26 Emc Corporation Storage and access of continuous media files indexed as lists of raid stripe sets associated with file names
US5987621A (en) * 1997-04-25 1999-11-16 Emc Corporation Hardware and software failover services for a file server
US6145066A (en) * 1997-11-14 2000-11-07 Amdahl Corporation Computer system with transparent data migration between storage volumes
JP2000305856A (en) 1999-04-26 2000-11-02 Hitachi Ltd Disk subsystems and integration system for them
TW454120B (en) 1999-11-11 2001-09-11 Miralink Corp Flexible remote data mirroring
US7203732B2 (en) 1999-11-11 2007-04-10 Miralink Corporation Flexible remote data mirroring
KR20030066331A (en) * 2000-06-05 2003-08-09 미라링크 코포레이션 Flexible remote data mirroring
US6938071B1 (en) 2000-10-31 2005-08-30 Hewlett-Packard Development Company, L.P. Fault tolerant storage system having an interconnection fabric that also carries network traffic
US20050050115A1 (en) * 2003-08-29 2005-03-03 Kekre Anand A. Method and system of providing cascaded replication
JP2005157712A (en) * 2003-11-26 2005-06-16 Hitachi Ltd Remote copy network
JP4434857B2 (en) 2003-12-04 2010-03-17 株式会社日立製作所 Remote copy system and system
US8069322B2 (en) 2008-08-15 2011-11-29 International Business Machines Corporation Active-active remote configuration of a storage system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045781A (en) * 1976-02-13 1977-08-30 Digital Equipment Corporation Memory module with selectable byte addressing for digital data processing system
US4819159A (en) * 1986-08-29 1989-04-04 Tolerant Systems, Inc. Distributed multiprocess transaction processing system and method
DE3854384T2 (en) * 1987-11-30 1996-03-28 Ibm Method for operating a multiprocessor system using a shared virtual memory.
US5222217A (en) * 1989-01-18 1993-06-22 International Business Machines Corporation System and method for implementing operating system message queues with recoverable shared virtual storage
US5155845A (en) * 1990-06-15 1992-10-13 Storage Technology Corporation Data storage system for providing redundant copies of data on different disk drives

Also Published As

Publication number Publication date
WO1994000816A1 (en) 1994-01-06

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