DATA RECOVERY APPARATUS AND DATA RECOVERY METHOD
First Claim
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1. A data recovery apparatus comprising:
- accepting unit configure to accept an instruction to recover data in a first storage device;
generating unit configure to generate difference information representing differences between backup data stored in a second storage device backed up from the first storage device and first data stored in the first storage device at the point in time when the accepting unit receives the data recovery instruction; and
updating unit configure to update data stored in the first storage device on the basis of the difference information generated by the generating unit and the backup data.
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Abstract
A data recovery apparatus includes accepting unit configure to accept an instruction to recover data in a first storage device, generating unit configure to generate difference information describing differences between backup data backed up from the first storage device to a second storage device and data stored in the first storage device at the point in time when the data recovery instruction has been received by the accepting unit; and updating unit configure to update data stored in the first storage device on the basis of the difference information generated by the generating unit and the backup data.
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Citations
6 Claims
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1. A data recovery apparatus comprising:
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accepting unit configure to accept an instruction to recover data in a first storage device; generating unit configure to generate difference information representing differences between backup data stored in a second storage device backed up from the first storage device and first data stored in the first storage device at the point in time when the accepting unit receives the data recovery instruction; and updating unit configure to update data stored in the first storage device on the basis of the difference information generated by the generating unit and the backup data. - View Dependent Claims (2, 3, 4)
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5. A data recovery method is performed by computer, the data recovery method comprising:
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accepting an instruction to recover data in a first storage device; generating difference information describing differences between backup data backed up from the first storage device to a second storage device and the set of first data stored in the first storage device at the point in time when the data recovery instruction has been received in the accepting; and updating data stored in the first storage device on the basis of the difference information generated in the generating and the backup data.
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6. A computer-readable, non-transitory medium storing a program that causes a computer to execute a data recovery procedure, the data recovery procedure comprising:
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accepting an instruction to recover data in a first storage device; generating difference information indicating differences between backup data backed up from the first storage device to a second storage device and first data stored in the first storage device at the point in time when the data recovery instruction has been received; and updating data stored in the first storage device on the basis of the generated difference information and the backup data.
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Specification