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WO2009030365A1 - Dispositif et procédé de réalisation d'adaptations de matériel sur un serveur dans un système informatique distribué comportant au moins deux serveurs - Google Patents

Dispositif et procédé de réalisation d'adaptations de matériel sur un serveur dans un système informatique distribué comportant au moins deux serveurs Download PDF

Info

Publication number
WO2009030365A1
WO2009030365A1 PCT/EP2008/006821 EP2008006821W WO2009030365A1 WO 2009030365 A1 WO2009030365 A1 WO 2009030365A1 EP 2008006821 W EP2008006821 W EP 2008006821W WO 2009030365 A1 WO2009030365 A1 WO 2009030365A1
Authority
WO
WIPO (PCT)
Prior art keywords
server
computer
computer system
hardware
virtual machine
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.)
Ceased
Application number
PCT/EP2008/006821
Other languages
German (de)
English (en)
Inventor
Christian M. Stich
Marcel Dix
Mats A. Petterson
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.)
ABB Research Ltd Switzerland
Original Assignee
ABB Research Ltd Switzerland
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 ABB Research Ltd Switzerland filed Critical ABB Research Ltd Switzerland
Publication of WO2009030365A1 publication Critical patent/WO2009030365A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G06F8/656—Updates while running
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • G06F2009/45562—Creating, deleting, cloning virtual machine instances

Definitions

  • the invention relates to an apparatus and method for making hardware adjustments to a server in a distributed computer system that includes at least two physical servers.
  • Such hardware adjustments can be z. B. refer to a repair or upgrade or maintenance of a computer with server function, which usually require a shutdown of the computer. As a rule, this also means an interruption of the entire operation or at least the failure of a partial operation, which can result in significant costs. In industrial automation systems, for example, there is typically the requirement that hardware adjustments be carried out without interrupting the operation.
  • a known system design with which these requirements can be met is a redundantly designed computer system, or at least temporarily connect the system to an additional computer, which takes over the function of the computer to be turned off.
  • a redundantly designed computer system is complex. But also the availability of another computer and facilities such as switches and cable connections for its integration into the system in case of need mean a considerable effort. If no additional computer is kept available, it must first be procured if necessary, which is at least time-consuming.
  • the invention is therefore based on the object to provide a method and a device with which hardware adjustments to computers with server function in a non-redundant distributed computer system without interruption and with relatively little overhead are feasible.
  • the invention therefore proposes to provide the redundancy required for carrying out hardware adjustments or changes to computers with server function without interruption in a distributed computer system by means of temporary virtual machines.
  • the virtual machines assume the server function of the affected system part.
  • the provisions required for such a procedure are much less complicated than in the above known solutions.
  • a non-redundant distributed computer system for example an industrial automation system as the starting system.
  • a system typically has a plurality of physical computers, of which only three physical computers R1, R2, and R3 are shown here for the sake of simplicity.
  • R1 software for a first server functionality a is installed in the first computer R1.
  • R2 software for a second server functionality b is installed in the second computer R2 software for a second server functionality b is installed.
  • the third computer R3 is a client.
  • the computers R1, R2, and R3 are interconnected via a network N.
  • step 1 and 2 of FIG. 1 shown and explained below procedure proposed.
  • step 1 an operation is shown by way of example, in which first a virtual machine V1 with the function of the first server a is installed on the second computer R2.
  • the second computer R2 thus temporarily assumes the function of the two servers a and b.
  • the first computer R1 is then disconnected from the network N, and the intended hardware adaptation or modification of the first server takes place offline.
  • step 2 after a retransmission of the server functionality of the server a from the virtual machine V1 to the first computer R1, the first computer R1 is again connected to the network N, and the virtual machine V1 is removed from the second computer R2 , This concludes the change process.
  • read-only operation may be provided.
  • a back migration of the server functionality and / or the further adjustments to the modified computer can take place before it is switched back to the network and the virtual machine is uninstalled.
  • a redundant operation of the changed physical server and the virtual server may be provided for a while until an automatic synchronization has taken place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Hardware Redundancy (AREA)

Abstract

L'invention concerne un procédé et un dispositif correspondant de réalisation d'adaptations serveur-matériel dans un système informatique distribué comportant plusieurs ordinateurs physiques (R1, R2, R3), au moins deux ordinateurs (par ex. R1 et R2) étant conçus en tant que serveurs (a, b). Pour éviter toute interruption de la mise à disposition de fonctions de serveur lors de la réalisation d'adaptations de matériel de façon temporaire dans un ordinateur non concerné par la modification, une machine virtuelle est respectivement pourvue de la fonction de serveur d'un serveur concerné par une adaptation.
PCT/EP2008/006821 2007-09-03 2008-08-20 Dispositif et procédé de réalisation d'adaptations de matériel sur un serveur dans un système informatique distribué comportant au moins deux serveurs Ceased WO2009030365A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007041652.2 2007-09-03
DE102007041652A DE102007041652A1 (de) 2007-09-03 2007-09-03 Einrichtung und Verfahren zur Durchführung von Hardware-Anpassungen an einem Server in einem verteilten Computersystem mit wenigstens zwei Servern

Publications (1)

Publication Number Publication Date
WO2009030365A1 true WO2009030365A1 (fr) 2009-03-12

Family

ID=40176222

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/006821 Ceased WO2009030365A1 (fr) 2007-09-03 2008-08-20 Dispositif et procédé de réalisation d'adaptations de matériel sur un serveur dans un système informatique distribué comportant au moins deux serveurs

Country Status (2)

Country Link
DE (1) DE102007041652A1 (fr)
WO (1) WO2009030365A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097624A2 (fr) * 2001-05-25 2002-12-05 Neverfail Group Plc Perfectionnements apportes a des reseaux insensibles aux defaillances
US20060015641A1 (en) * 2004-07-13 2006-01-19 Teneros, Inc. Autonomous service backup and migration
US20070174658A1 (en) * 2005-11-29 2007-07-26 Yoshifumi Takamoto Failure recovery method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146073B2 (en) * 2004-09-30 2012-03-27 Microsoft Corporation Updating software while it is running

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097624A2 (fr) * 2001-05-25 2002-12-05 Neverfail Group Plc Perfectionnements apportes a des reseaux insensibles aux defaillances
US20060015641A1 (en) * 2004-07-13 2006-01-19 Teneros, Inc. Autonomous service backup and migration
US20070174658A1 (en) * 2005-11-29 2007-07-26 Yoshifumi Takamoto Failure recovery method

Also Published As

Publication number Publication date
DE102007041652A1 (de) 2009-03-05

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