CA2153508A1 - A method of operating a computer system - Google Patents

A method of operating a computer system

Info

Publication number
CA2153508A1
CA2153508A1 CA002153508A CA2153508A CA2153508A1 CA 2153508 A1 CA2153508 A1 CA 2153508A1 CA 002153508 A CA002153508 A CA 002153508A CA 2153508 A CA2153508 A CA 2153508A CA 2153508 A1 CA2153508 A1 CA 2153508A1
Authority
CA
Canada
Prior art keywords
storage device
operating
backup process
microcomputer
record
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
CA002153508A
Other languages
French (fr)
Other versions
CA2153508C (en
Inventor
Peter Bryan Malcolm
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.)
Cheyenne Advanced Technology Ltd
Original Assignee
Peter Bryan Malcolm
Intelligence Quotient International Limited
Cheyenne Advanced Technology Limited
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 Peter Bryan Malcolm, Intelligence Quotient International Limited, Cheyenne Advanced Technology Limited filed Critical Peter Bryan Malcolm
Priority to CA002153508A priority Critical patent/CA2153508C/en
Priority claimed from PCT/GB1994/001581 external-priority patent/WO1995019599A1/en
Publication of CA2153508A1 publication Critical patent/CA2153508A1/en
Application granted granted Critical
Publication of CA2153508C publication Critical patent/CA2153508C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/16—Protection against loss of memory contents
    • 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
    • G06F11/1448—Management of the data involved in backup or backup restore
    • G06F11/1451—Management of the data involved in backup or backup restore by selection of backup contents
    • 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
    • G06F11/14—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
    • G06F11/1469—Backup restoration techniques

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)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Multi Processors (AREA)
  • Hardware Redundancy (AREA)

Abstract

A method of operating a computer system, in particular a microcomputer having a storage device shared between several application programs, comprises a backup process including a process for maintaining a record of changes made to the data on the storage device whilst the backup process is executing. The record is used to ensure that the data seen by the backup process does not change while it is executing whilst allowing other processes to continue to update the storage device normally thereby avoiding delays associated with file locking techniques. The additional operations are executed at the level of the operating system interface of the microcomputer in such a manner that normal use of the computer is unaffected.
CA002153508A 1994-07-20 1994-07-20 A method of operating a computer system Expired - Fee Related CA2153508C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002153508A CA2153508C (en) 1994-07-20 1994-07-20 A method of operating a computer system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002153508A CA2153508C (en) 1994-07-20 1994-07-20 A method of operating a computer system
PCT/GB1994/001581 WO1995019599A1 (en) 1994-07-20 1994-07-20 File backup system

Publications (2)

Publication Number Publication Date
CA2153508A1 true CA2153508A1 (en) 1996-01-21
CA2153508C CA2153508C (en) 2005-07-19

Family

ID=4156186

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002153508A Expired - Fee Related CA2153508C (en) 1994-07-20 1994-07-20 A method of operating a computer system

Country Status (1)

Country Link
CA (1) CA2153508C (en)

Also Published As

Publication number Publication date
CA2153508C (en) 2005-07-19

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed