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公开(公告)号：JP2002007175A
公开(公告)日：2002-01-11
申请号：JP2001127280
申请日：2001-04-25
Applicant: IBM
Inventor： DAVID MAXWELL CANON , DAWSON COLIN S , HOWARD NEWTON MARTIN
Abstract: PROBLEM TO BE SOLVED: To provide a method and device and a product for a computer implementing technique for generating a file copy while minimizing the mount and arrangement of a storage volume. SOLUTION: A request for the generation of a file copy designing a file selection standard is received, and a matched file fulfilling the selection standard is identified, and the matched file is found on a storage volume, and the file is copied to a copy set. The decision of the order of the file copy is optimized by putting a larger emphasis on the relative storage place of the matched file than that of the order of the requests for the copy. In this method, it is guaranteed that each matched file is included in the copy set without being copied. The storage volume includes a successive access volume and a random access volume, and the stored file is provided with a primary copy on the successive access volume or the random access volume, and probably a secondary copy on the successive access volume.
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公开(公告)号：JP2002007187A
公开(公告)日：2002-01-11
申请号：JP2001127061
申请日：2001-04-25
Applicant: IBM
Inventor： CANNON DAVID M , DAWSON COLIN S , HAY MARK A
Abstract: PROBLEM TO BE SOLVED: To transfer data objects belonging to a common group while maintaining the grouping of data objects in a distributed data storage environment. SOLUTION: Data objects can be transferred in the order of not the grouping of those data objects but the preservation of the data objects. When the data objects are transferred from a source site to a target site, attribute information including unique group identifiers are related with those data objects. In the target site, the attribute information of each data object is received and analyzed. When those data objects are received, each data object is related with the group of the data objects by using an import group list in which the groups of the data objects are listed. The data objects in the group whose members are not received are listed in an unsolved object list. After the grouping is completed, all the data objects of the group are removed from the unsolved object list. When the data transfer session is ended, all the data objects listed in the unsolved object list are erased.
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公开(公告)号：DE112012002762T5
公开(公告)日：2014-04-10
申请号：DE112012002762
申请日：2012-08-28
Applicant: IBM
Inventor： ANGLIN MATTHEW J , CANNON DAVID M , DAWSON COLIN S , FRUCHTMAN BARRY , HAYE MARK A , MARTIN HOWARD N
Abstract: Datenobjekte werden von einem Quellspeicher, der durch einen Quellserver verwaltet wird, auf einen Zielspeicher repliziert, der durch einen Zielserver verwaltet wird. Auf dem Quellserver wird eine Quellliste von Objekten aufgebaut, die auf den Zielserver repliziert werden sollen. Der Zielserver wird abgefragt, um eine Liste von Objekten auf dem Zielserver zu empfangen. Eine Replikationsliste wird aufgebaut, die auf den Zielserver zu übertragende Objekte in der Quellliste angibt, die nicht in der Zielliste enthalten sind. Zu jedem Objekt in der Replikationsliste werden Daten des Objektes, die nicht bereits auf dem Zielspeicher vorhanden sind, an den Zielserver gesendet, und Metadaten über das Objekt werden an den Zielserver gesendet, um den Zielserver zu veranlassen, die Metadaten in einer Zielserver-Replikationsdatenbank in einem Eintrag zu dem Objekt aufzunehmen. Zu einer Quellserver-Replikationsdatenbank wird ein Eintrag für das Objekt hinzugefügt.
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Patent Agency Ranking
公开(公告)号：DE60113586D1
公开(公告)日：2005-11-03
申请号：DE60113586
申请日：2001-04-20
Applicant: IBM
Inventor： CANNON DAVID M , DAWSON COLIN S , HAYE MARK A
Abstract: A system and method are provided for transferring related data objects in a distributed data storage environment. The approach allows for data objects belonging to a common group to be transferred while preserving the grouping of the data objects. The data objects can be transferred in an order in which the data objects are stored, rather than in an order of grouping. The data objects are accompanied with attribute information including a unique group identifier when transferred from a source site to a target site. At the target site, the attribute information for each data object is received and analysed. An import groups table listing the groups of data objects is used to associate each data object with its group as it is received. Data objects of groups for which any members have not been received are also listed in an unresolved objects table. When a group is complete, all data objects of the group are removed from the unresolved objects table. At the end of a data transfer session, all data objects still listed in the unresolved objects table are deleted.
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公开(公告)号：AT448521T
公开(公告)日：2009-11-15
申请号：AT01000121
申请日：2001-04-20
Applicant: IBM
Inventor： CANNON DAVID M , DAWSON COLIN S , HAYE MARK A , SMITH JAMES P
Abstract: A system and method for relating files in a distributed data storage environment is described that allows for positive identification of membership of a file within a group, even in a loosely coupled environment where files are not available for comparison in real time. In disclosed embodiments, base files of a client are stored on a server and are accompanied by tokens uniquely identifying the base files. The tokens are generated on the client and may be derived from the contents of the base file using a digital signature. Each file transmitted to the server is accompanied with a token. Incremental backups may be used, and may employ file differencing. Accordingly, sub-files related to the base files may be transmitted to the server for backup. The sub-files are related to their respective base files using the tokens and are cross-linked to the base files so that any sub-files can be retrieved together with the base file from which the sub-file was derived.
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公开(公告)号：DE60113586T2
公开(公告)日：2006-06-22
申请号：DE60113586
申请日：2001-04-20
Applicant: IBM
Inventor： CANNON DAVID M , DAWSON COLIN S , HAYE MARK A
Abstract: A system and method are provided for transferring related data objects in a distributed data storage environment. The approach allows for data objects belonging to a common group to be transferred while preserving the grouping of the data objects. The data objects can be transferred in an order in which the data objects are stored, rather than in an order of grouping. The data objects are accompanied with attribute information including a unique group identifier when transferred from a source site to a target site. At the target site, the attribute information for each data object is received and analysed. An import groups table listing the groups of data objects is used to associate each data object with its group as it is received. Data objects of groups for which any members have not been received are also listed in an unresolved objects table. When a group is complete, all data objects of the group are removed from the unresolved objects table. At the end of a data transfer session, all data objects still listed in the unresolved objects table are deleted.
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公开(公告)号：DE60140398D1
公开(公告)日：2009-12-24
申请号：DE60140398
申请日：2001-04-20
Applicant: IBM
Inventor： CANNON DAVID M , DAWSON COLIN S , HAYE MARK A , SMITH JAMES P
Abstract: A system and method for relating files in a distributed data storage environment is described that allows for positive identification of membership of a file within a group, even in a loosely coupled environment where files are not available for comparison in real time. In disclosed embodiments, base files of a client are stored on a server and are accompanied by tokens uniquely identifying the base files. The tokens are generated on the client and may be derived from the contents of the base file using a digital signature. Each file transmitted to the server is accompanied with a token. Incremental backups may be used, and may employ file differencing. Accordingly, sub-files related to the base files may be transmitted to the server for backup. The sub-files are related to their respective base files using the tokens and are cross-linked to the base files so that any sub-files can be retrieved together with the base file from which the sub-file was derived.
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公开(公告)号：AT305634T
公开(公告)日：2005-10-15
申请号：AT01000120
申请日：2001-04-20
Applicant: IBM
Inventor： CANNON DAVID M , HURSLEY PARK , DAWSON COLIN S , HAYE MARK A
Abstract: A system and method are provided for transferring related data objects in a distributed data storage environment. The approach allows for data objects belonging to a common group to be transferred while preserving the grouping of the data objects. The data objects can be transferred in an order in which the data objects are stored, rather than in an order of grouping. The data objects are accompanied with attribute information including a unique group identifier when transferred from a source site to a target site. At the target site, the attribute information for each data object is received and analysed. An import groups table listing the groups of data objects is used to associate each data object with its group as it is received. Data objects of groups for which any members have not been received are also listed in an unresolved objects table. When a group is complete, all data objects of the group are removed from the unresolved objects table. At the end of a data transfer session, all data objects still listed in the unresolved objects table are deleted.
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