Method for assuring compatibility and method for securing data within a distributed computer system
First Claim
1. A method for ensuring the compatibility between software units which are activated in computer subsystems (System A, System B) which belong to a distributed computer system and each have one version standard of software code and data, during system initialization of at least one such computer subsystem, with the following steps being carried out:
- a) after finding an incompatibility between a software unit which is activated in a first computer subsystem and at least one software unit which is activated in a further computer subsystem, further software units which have not been activated and which exist on the respective computer subsystems are compared-with one another for compatibility, b) in the event of compatibility being found from the comparison, a compatible software unit, which has not been activated, is activated in its computer subsystem, and the corresponding, previously activated, software unit is deactivated.
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Accused Products
Abstract
The invention relates to a method for assuring compatibility between the software units activated in partial computer systems (system A, system B) belonging to a distributed computer system, said software units each comprising their respective version of software codes and/or data. Once a compatibility test has established compatibility, a compatible non-activated software unit is activated on its partial computer system and the corresponding previously activated software unit is deactivated. The invention also relates to a method for securing data within a distributed computer system with several partial computer systems, for blocking access to the data, for securing common data and for deactivating the data access block are carried out according to the current status of the data securing option.
9 Citations
16 Claims
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1. A method for ensuring the compatibility between software units which are activated in computer subsystems (System A, System B) which belong to a distributed computer system and each have one version standard of software code and data, during system initialization of at least one such computer subsystem, with the following steps being carried out:
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a) after finding an incompatibility between a software unit which is activated in a first computer subsystem and at least one software unit which is activated in a further computer subsystem, further software units which have not been activated and which exist on the respective computer subsystems are compared-with one another for compatibility, b) in the event of compatibility being found from the comparison, a compatible software unit, which has not been activated, is activated in its computer subsystem, and the corresponding, previously activated, software unit is deactivated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 16)
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8. A method for data back-up within a distributed computer system having a number of computer subsystems (System A, System B) within which a data back-up is initiated in each computer subsystem after a software change, and is synchronized in the respective computer subsystems at synchronization points which are defined in the data back-up procedure, with the following steps being carried out as a function of the current state of the data back-up procedure:
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a) a data back-up of data which other computer subsystems cannot access is carried out in each computer subsystem, b) a data access block is activated in each computer subsystem, c) a data back-up of data which other computer subsystems can also access is carried out in each computer subsystem, and d) the data access blocks are deactivated. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification