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    5.
    发明专利
    未知

    公开(公告)号：DE602006009708D1

    公开(公告)日：2009-11-19

    申请号：DE602006009708

    申请日：2006-11-21

    Applicant: IBM

    Inventor： BOYD KENNETH WAYNE ,  FLYNN JOHN THOMAS ,  KERN ROBERT FREDERIC ,  MCBRIDE GREGORY EDWARD ,  MICKA WILLIAM FRANK ,  SHACKELFORD DAVID MICHAEL

    IPC: G06F11/14

    Abstract: An apparatus, system, and method are disclosed for continuously protecting data. A mirror module mirrors a primary record set to a base record set. A log module accumulates each record change to the primary record set in a log. A change selection module selects a record change from the log. A change application module applies the selected record change to the base record set to form a recovered record set.

    6.
    发明专利
    未知

    公开(公告)号：DE69502125D1

    公开(公告)日：1998-05-28

    申请号：DE69502125

    申请日：1995-02-07

    Applicant: IBM

    Inventor： KERN ROBERT FREDERIC ,  MICKA WILLIAM FRANK ,  MIKKELSEN CLAUS WILLIAM ,  PAULSEN MICHAEL ALOYSIUS ,  SHOMLER ROBERT WESLEY

    IPC: G06F3/06 ,  G06F11/20 ,  G06F13/00 ,  G11C29/00 ,  G06F11/14

    Abstract: A remote data shadowing system provides synchronous, storage based, real time disaster recovery wherein a secondary site is located remote from the primary site. An error recovery program at the primary site quiesces applications running thereat for performing error recovery procedures and signalling both primary and secondary locations that failed duplex has occurred. The error recovery program determines the cause of failed duplex, and if error recovery is successful, duplex mode is resumed. If the error recovery program is unable to perform error recovery successfully, then further write updates at the primary site are prohibited and an error message is communicated to operators at both the primary and secondary sites.

    7.
    发明专利
    未知

    公开(公告)号：DE602004005344T2

    公开(公告)日：2007-11-29

    申请号：DE602004005344

    申请日：2004-06-15

    Applicant: IBM

    Inventor： KERN ROBERT FREDERIC ,  PETERSEN DAVID ,  LUDVIG RUNE WILLY

    IPC: G06F11/20

    Abstract: Provided are a method, program, and system for managing data. A mirror policy is processed indicating volumes in a first storage system to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system, wherein the third storage system is at a first geographical location remote with respect to a second geographical location including the first and second storage systems. A failure is detected of the first and second storage systems at the first geographical location. Automatic reconfiguration is made to network resources directing I/O requests to volumes in the first storage system to direct I/O requests to volumes in the third storage system. A failure of the first storage system and the availability of the second storage system is detected and, in response, network resources are reconfigured to direct I/O requests to volumes in the first storage system to volumes in the second storage system in response to detecting the failure of the first storage system and the availability of the second storage system. Updates to the second storage system are copied to the third storage system after reconfiguring network resources to direct I/O requests to volumes in the first storage system to volumes in the second storage system.

    STORAGE SYSTEM CLASS DISTINCTION CUES FOR RUN-TIME DATA MANAGEMENT
    8.
    发明专利
    STORAGE SYSTEM CLASS DISTINCTION CUES FOR RUN-TIME DATA MANAGEMENT 未知

    公开(公告)号：CA2519173A1

    公开(公告)日：2004-11-04

    申请号：CA2519173

    申请日：2004-04-19

    Applicant: IBM

    Inventor： HOOD ROBERT ALLEN ,  FRISKE ROBERT CHARLES ,  KALOS MATTHEW JOSEPH ,  BOYD KENNETH WAYNE ,  KERN ROBERT FREDERIC

    IPC: G06F3/06 ,  G06F12/00 ,  G06F17/30

    Abstract: A data management system has at least one class distinction cue associated with a class of data entities. The class distinction cue comprises data management guidance information and priority information related to the associated class of data entities. For a data entity, at run-time, a data management allocation run-time system references the class distinction cue o r cues prior to conducting data management allocation or access, and, based on the priority information as compared to other priority information related t o the data storage resources, selectively allocates the data storage resources and provides the operations of the storage system in the data management allocation system for the data entity.

    9.
    发明专利
    未知

    公开(公告)号：AT357019T

    公开(公告)日：2007-04-15

    申请号：AT04821178

    申请日：2004-06-15

    Applicant: IBM

    Inventor： KERN ROBERT FREDERIC ,  PETERSEN DAVID ,  LUDVIG RUNE WILLY

    IPC: G06F11/20

    Abstract: Provided are a method, program, and system for managing data. A mirror policy is processed indicating volumes in a first storage system to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system, wherein the third storage system is at a first geographical location remote with respect to a second geographical location including the first and second storage systems. A failure is detected of the first and second storage systems at the first geographical location. Automatic reconfiguration is made to network resources directing I/O requests to volumes in the first storage system to direct I/O requests to volumes in the third storage system. A failure of the first storage system and the availability of the second storage system is detected and, in response, network resources are reconfigured to direct I/O requests to volumes in the first storage system to volumes in the second storage system in response to detecting the failure of the first storage system and the availability of the second storage system. Updates to the second storage system are copied to the third storage system after reconfiguring network resources to direct I/O requests to volumes in the first storage system to volumes in the second storage system.

    10.
    发明专利
    未知

    公开(公告)号：DE69502651T2

    公开(公告)日：1999-02-25

    申请号：DE69502651

    申请日：1995-02-07

    Applicant: IBM

    Inventor： KERN ROBERT FREDERIC ,  KERN RONALD MAYNARD ,  MCBRIDE GREGORY EDWARD ,  SHACKELFORD DAVID MICHAEL

    IPC: G06F3/06 ,  G06F11/14 ,  G06F11/20 ,  G06F12/00 ,  G06F12/16 ,  G06F13/00 ,  G11C29/00

    Abstract: A remote data shadowing system provides storage based, real time disaster recovery capability. Record updates at a primary site cause write I/O operations in a storage subsystem therein. The write I/O operations are time stamped and the time, sequence, and physical locations of the record updates are collected in a primary data mover. The primary data mover groups sets of the record updates and associated control information based upon a predetermined time interval, the primary data mover appending a prefix header to the record updates thereby forming self describing record sets. The self describing record sets are transmitted to a remote secondary site wherein consistency groups are formed such that the record updates are ordered so that the record updates can be shadowed in an order consistent with the order the record updates cause write I/O operations at the primary site.

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