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公开(公告)号:CA2436517C
公开(公告)日:2011-09-20
申请号:CA2436517
申请日:2001-10-01
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT
Abstract: The invention relates to data processing methods and systems including: a method of database replication in which information strings are assigned to serialisation groups for processing. A method of memory management in which data is read from a storage space area whilst no data is written to it. A method of replicating a database in which a dynamic table is created to provided processing information for database members. A method of replicating a database wherein tasks are allocated to program components without program components interacting.
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公开(公告)号:AU2003278631B2
公开(公告)日:2009-10-08
申请号:AU2003278631
申请日:2003-10-14
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT , GARVEY DAVID JOHN
Abstract: A method of journaling changes to system objects. A dummy function is substituted for a system function. The system function is executed under operation of the dummy function. Copies of system objects changed by execution of the system function are generated for journaling. Execution of the dummy function is then completed. Preferably the system objects are OS/400 system objects. The system objects may be program objects, configuration objects, queues and space/memory mapped objects. The copies of the system objects may be journaled for replication on another system. A system and software for journaling changes to system objects are also disclosed.
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公开(公告)号:NZ546247A
公开(公告)日:2007-02-23
申请号:NZ54624701
申请日:2001-10-01
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT
IPC: G06F17/30
Abstract: A method of replicating a database from a source computer system at a target computer system comprises: i) receiving journal entries from the source computer system; ii) checking the journal entries to see if any entry exists in a dynamic index giving processing information relating to a database member to which the journal entry relates; and iii) if an entry exists in the dynamic table, processing the journal entry according to the associated processing information; or iv) if an entry does not exist in the dynamic index, looking up the related processing information for the member in an assignment database; creating an entry and storing it in the dynamic index; and processing the journal entry according to the processing information. (62) Divided Out of 537170
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公开(公告)号:NZ537170A
公开(公告)日:2006-06-30
申请号:NZ53717001
申请日:2001-10-01
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT
IPC: G06F17/30
Abstract: A method of managing memory space in a data transfer operation comprises: i) defining a plurality of storage space areas; ii) writing data to a first storage space area; and iii) reading data from the first storage space area whilst no data is written to the first storage space area. The data is database journal entries and the journal entries are consecutively written to the first storage space area until the first storage space area is at least substantially filled and then data is written to the next storage space area. Each journal entry has an associated header that records the displacement to the next journal entry having the same serialisation group. The data is written to a second storage space whilst data is read from the first storage space. Each storage space has a storage space header which records the number of serialisation groups having journal entries within that storage space. When all data is read out of a storage space, the storage space header is decremented and the storage space is made available for data to be written to.
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公开(公告)号:ZA200502951B
公开(公告)日:2006-02-22
申请号:ZA200502951
申请日:2005-04-12
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT , GARVEY DAVID JOHN
Abstract: A method of journaling changes to system objects. A dummy function is substituted for a system function. The system function is executed under operation of the dummy function. Copies of system objects changed by execution of the system function are generated for journaling. Execution of the dummy function is then completed. Preferably the system objects are OS/400 system objects. The system objects may be program objects, configuration objects, queues and space/memory mapped objects. The copies of the system objects may be journaled for replication on another system. A system and software for journaling changes to system objects are also disclosed.
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公开(公告)号:CA2501928A1
公开(公告)日:2004-04-29
申请号:CA2501928
申请日:2003-10-14
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT , GARVEY DAVID JOHN
Abstract: A method of journaling changes to system objects. A dummy function (6) is substituted for a system function (12). The system function (12) is executed (13) under operation of the dummy function (6). Copies of system objects (16 ) changed by execution of the system function are generated (17) for journalin g (20). Execution of the dummy function (6) is then completed. Preferably the system objects are OS/400 system objects. The system objects may be program objects, configuration objects, queues and space/memory mapped objects. The copies of the system objects may be journaled for replication on another system.A system and software for journaling changes to system objects are al so disclosed.
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公开(公告)号:CA2436517A1
公开(公告)日:2002-04-18
申请号:CA2436517
申请日:2001-10-01
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT
Abstract: The invention relates to data processing methods and systems including: a method of database replication in which information strings are assigned to serialisation groups for processing. A method of memory management in which data is read from a storage space area whilst no data is written to it. A method of replicating a database in which a dynamic table is created to provided processing information for database members. A method of replicatin g a database wherein tasks are allocated to program components without program components interacting.
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公开(公告)号:ES2548087T3
公开(公告)日:2015-10-13
申请号:ES03770166
申请日:2003-10-14
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT , GARVEY DAVID JOHN
Abstract: Un método implementado por ordenador para registro diario de cambios a objetos de sistema (16) en un sistema operativo con un procesador, incluyendo el método las etapas de, y caracterizado por, el procesador: i) ejecutar una función ficticia (6) en lugar de una función de sistema (12) cuando se solicita la función de sistema (12); ii) ejecutar la función de sistema (12) bajo control de la función ficticia (6); y iii) generar, mediante la función ficticia (6), copias de objetos de sistema (16) cambiados por la ejecución de la función de sistema (12), para registro diario.
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公开(公告)号:CA2501928C
公开(公告)日:2012-11-13
申请号:CA2501928
申请日:2003-10-14
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT , GARVEY DAVID JOHN
Abstract: A method of journaling changes to system objects. A dummy function (6) is substituted for a system function (12). The system function (12) is executed (13) under operation of the dummy function (6). Copies of system objects (16) changed by execution of the system function are generated (17) for journaling (20). Execution of the dummy function (6) is then completed. Preferably the system objects are OS/400 system objects. The system objects may be program objects, configuration objects, queues and space/memory mapped objects. The copies of the system objects may be journaled for replication on another system.A system and software for journaling changes to system objects are also disclosed.
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公开(公告)号:AU2007231648A1
公开(公告)日:2007-11-15
申请号:AU2007231648
申请日:2007-10-25
Applicant: MAXIMUM AVAILABILITY LTD
Inventor: TARBELL JAMES SCOTT
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