Patent EP0566967A2 successfully refreshed from Google Patents.
EP0566967A2
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EP
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Method and system for time zero backup session security
Assignee: International Business Machines Corp
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Filing: 1993-04-13
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Granted: —
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Expires: 2013-04-13
Abstract
Abstract A data backup copying session on a data processing system is secured responsive to initiation of the data backup session by an application executing on a processing unit by generating a unique identifier for the data backup session. Thereafter, all member paths of a group of paths designated by the processing unit for communication between itself and the first storage subsystem are identified and associated with the data backup session. Access to the session is thereafter allowed only along a member path of the group of paths associated with the data backup session. The system and method further provide for fault recovery and protection against excessive demand on storage control unit memory.
Inventors
- 👤 Oded Cohn
- 👤 William Frank Micka
- 👤 Kenneth Michael Nagin
- 👤 Yoram Novick
- 👤 Alexander Winokur
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 14:39
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/14; G06F11/1446; G06F11/1458; G06F11/1466; Y; Y10; Y10S; Y10S707/00; Y10S707/99951; Y10S707/99952; Y10S707/99953; Y10S707/99955
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
138 words
A method in a data processing system of securing backup copying of designated datasets stored within at least a first storage subsystem connected to the data processing system by a storage control unit (65) against interference from contemporaneously executing applications (67) within one or more processing units of the data processing system, the method comprising the steps of: responsive to initiation of a data backup session by an application executing on a processing unit, generating a unique identifier for the data backup session; determining all member paths of a group of paths designated by the processing unit for communication between itself and the first storage subsystem; associating the data backup session with the group of paths; and allowing access to the session only along a member path of the group of paths associated with the data backup session.
Claim 2
Dependent Claim
99 words
A method in a data processing system of securing backup copying of designated datasets stored within at least a first storage subsystem connected to the data processing system by a storage control unit (65) against interference from contemporaneously executing applications (67) within one or more processing units of the data processing system as claimed in Claim 1, the method comprising the further steps of: generating a session file in subsystem storage (66) of a storage control unit (65) for the data backup session; and responsive to a session file exceeding a limit in size, terminating the data backup session.
Claim 3
Dependent Claim
83 words
A method in a data processing system of securing backup copying of designated datasets stored within at least a first storage subsystem connected to the data processing system by a storage control unit (65) against interference from contemporaneously executing applications (67) within one or more processing units of the data processing system as claimed in Claim 2, wherein said limit is dynamically adjusted as a function of the number of concurrent data backup sessions and the size of the concurrent data backup sessions.
Claim 4
Dependent Claim
89 words
A method in a data processing system of securing backup copying of designated datasets stored within at least a first storage subsystem connected to the data processing system by a storage control unit (65) against interference from contemporaneously executing applications (67) within one or more processing units of the data processing system as claimed in Claim 1, the method comprising the further step of: responsive to the processing unit resetting all member paths of the group of paths designated initially by the processing unit, terminating the data backup session.
Claim 5
Dependent Claim
76 words
A method in a data processing system of securing backup copying of designated datasets stored within at least a first storage subsystem connected to the data processing system by a storage control unit (65) against interference from contemporaneously executing applications (67) within one or more processing units of the data processing system as claimed in Claim 1, the method comprising the further step of: responsive to reinitialization of the processing unit, terminating the data backup session.
Claim 6
Dependent Claim
77 words
A method in a data processing system of securing backup copying of designated datasets stored within at least a first storage subsystem connected to the data processing system by a storage control unit (65) against interference from contemporaneously executing applications (67) within one or more processing units of the data processing system as claimed in Claim 1, the method comprising the further step of: notifying the processing unit of a reinitialization of the storage control unit (65).
Claim 7
Dependent Claim
84 words
A method in a data processing system of securing backup copying of designated datasets stored within at least a first storage subsystem connected to the data processing system by a storage control unit (65) against interference from contemporaneously executing applications (67) within one or more processing units of the data processing system as claimed in Claim 1, the method comprising the further step of: responsive to inquiry by a processing unit, returning a list of available data backup session identifiers to the processing unit.
Claim 8
Dependent Claim
149 words
A data processing system for securing data backup copying of datasets designated by an application executing on a processing unit of the data processing system and stored within at least a first storage subsystem (61, 65), the backup copying occurring during concurrent execution of other applications (67) on one or more processing units of the data processing system, comprising: means responsive to initiation of a data backup session by an application executing on a processing unit for generating a unique identifier for said data backup session; means for determining all member paths of a group of paths designated by the processing unit for communication between itself and said first storage subsystem; means for associating the data backup session with the group of paths; and means for blocking access to said data backup session along a path not belonging to the group of paths associated with said data backup session.
Claim 9
Dependent Claim
114 words
A data processing system for securing data backup copying of datasets designated by an application executing on a processing unit of the data processing system and stored within at least a first storage subsystem, the backup copying occurring during concurrent execution of other applications (67) on one or more processing units of the data processing system as claimed in Claim 8, further comprising: means for generating a session file in subsystem storage (66) of a storage control unit (65) for said data backup session; means for determining if said session file exceeds a limit in size; and means responsive to a session file exceeding said limit in size for terminating said data backup session.
Claim 10
Dependent Claim
89 words
A data processing system for securing data backup copying of datasets designated by an application executing on a processing unit of the data processing system and stored within at least a first storage subsystem, the backup copying occurring during concurrent execution of other applications (67) on one or more processing units of the data processing system as claimed in Claim 9, further comprising means for dynamically adjusting said limit as the function of a number of concurrent data backup sessions and the size of the concurrent data backup sessions.
Claim 11
Dependent Claim
90 words
A data processing system for securing data backup copying of datasets designated by an application executing on a processing unit of the data processing system and stored within at least a first storage subsystem, the backup copying occurring during concurrent execution of other applications (67) on one or more processing units of the data processing system as claimed in Claim 8, further comprising: means responsive to the processing unit resetting all member paths of the group of paths designated initially by the processing unit for terminating said data backup session.
Claim 12
Dependent Claim
77 words
A data processing system for securing data backup copying of datasets designated by an application executing on a processing unit of the data processing system and stored within at least a first storage subsystem, the backup copying occurring during concurrent execution of other applications (67) on one or more processing units of the data processing system as claimed in Claim 8, further comprising: means responsive to reinitialization of said processing unit for terminating said data backup session.
Claim 13
Dependent Claim
78 words
A data processing system for securing data backup copying of datasets designated by an application executing on a processing unit of the data processing system and stored within at least a first storage subsystem, the backup copying occurring during concurrent execution of other applications (67) on one or more processing units of the data processing system as claimed in Claim 8, further comprising: means for notifying the processing unit of a reinitialization of the storage control unit (65).
Claim 14
Dependent Claim
85 words
A data processing system for securing data backup copying of datasets designated by an application executing on a processing unit of the data processing system and stored within at least a first storage subsystem, the backup copying occurring during concurrent execution of other applications (67) on one or more processing units of the data processing system as claimed in Claim 8, further comprising: means responsive to inquiry by a processing unit for returning a list of available data backup session identifiers to the processing unit.
References Cited (Backward Citations)
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