Information processing system, information processing apparatus, and control method for information processing system
First Claim
1. An information processing system comprising:
- an information processing apparatus installed at each of a plurality of sites, said information processing apparatuses being interconnected to be able to communicate with each other;
a fail-over processor realized by a program executed by one or more information processing apparatuses, wherein when a failure occurs at one of said information processing apparatuses, said fail-over processor performs a process related to fail-over of making another information processing apparatus different from said information processing apparatus hit by said failure inherit processes executed by said information processing apparatus hit by said failure;
a recovery capability judge for judging whether essential data is managed in a recoverable state at any one of said information processing apparatuses excepting said information processing apparatus hit by said failure, when said fail-over is executed passing from said information processing apparatus hit by said failure to said other information processing apparatus, said essential data being necessary data for performing a process to be dealt with said fail-over; and
a backup data generator for generating backup data necessary for recovering said essential data if said essential data is not managed in the recoverable state.
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Accused Products
Abstract
An information processing system has: information processing apparatus installed at each site, the apparatuses being interconnected with each other; fail-over processor realized by program executed by a processing apparatus, wherein when failure occurs, the fail-over processor performs to fail-over of making another different from the processing apparatus hit by the failure inherit processes executed by the processing apparatus hit by the failure; a recovery capability judge for judging whether essential data is managed in recoverable state at any processing apparatus excepting the processing apparatus hit by the failure, when the fail-over is executed passing from the processing apparatus hit by the failure to the other, the essential data necessary for performing fail-over; and backup data generator for generating backup data necessary for recovering the essential data if the data is not managed in recoverable state.
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Citations
20 Claims
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1. An information processing system comprising:
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an information processing apparatus installed at each of a plurality of sites, said information processing apparatuses being interconnected to be able to communicate with each other;
a fail-over processor realized by a program executed by one or more information processing apparatuses, wherein when a failure occurs at one of said information processing apparatuses, said fail-over processor performs a process related to fail-over of making another information processing apparatus different from said information processing apparatus hit by said failure inherit processes executed by said information processing apparatus hit by said failure;
a recovery capability judge for judging whether essential data is managed in a recoverable state at any one of said information processing apparatuses excepting said information processing apparatus hit by said failure, when said fail-over is executed passing from said information processing apparatus hit by said failure to said other information processing apparatus, said essential data being necessary data for performing a process to be dealt with said fail-over; and
a backup data generator for generating backup data necessary for recovering said essential data if said essential data is not managed in the recoverable state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An information processing apparatus installed at each of a plurality of sites, comprising:
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a fail-over processor connected to the information processing apparatus installed at another site, wherein when a failure occurs at said other information processing apparatuses, said fail-over processor performs a process related to fail-over of inheriting processes executed by said other information processing apparatus;
a recovery capability judge for judging whether essential data is managed in a recoverable state at one of the information processing apparatuses and the information processing apparatus excepting said information processing apparatus hit by said failure, said essential data being necessary data for performing a process to be dealt with said fail-over; and
a backup data generator for generating backup data necessary for recovering said essential data if said essential data is not managed in the recoverable state. - View Dependent Claims (17, 18, 19)
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20. A control method for an information processing system constituting a fail-over type cluster, in which an information processing apparatus is installed at each of a plurality of sites, said information processing apparatuses being interconnected to be able to communicate with each other, and when a failure occurs at one of said information processing apparatuses, another information processing apparatus different from said information processing apparatus hit said the failure inherits processes executed said the information processing apparatus hit by the failure, the control method comprising the steps of:
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when said fail-over is executed passing from said information processing apparatus hit by said failure to said other information processing apparatus, judging whether essential data is managed in a recoverable state at any one of said information processing apparatuses excepting said information processing apparatus hit by said failure, said essential data being necessary data for said information processing apparatus to perform a process to be dealt with said fail-over; and
generating backup data necessary for recovering said essential data if said essential data is not managed in the recoverable state.
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Specification