Remote copy with data deduplication functionality
AssigneeInternational Business Machines Corporation
InventorsTohru HASEGAWA, Hiroshi ARAKI
Life of this patent
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Abstract
A system and method for transferring data stored in a first storage having a deduplication function to a second storage are presented. Deduplication information may be provided for a common data section of first data, stored in the first storage, containing a unique data section and the common data section. The unique section and the deduplication information for the common data section of the first data using a deduplication index may be sent from the first storage to a second storage. The first data may be copied in the second storage based on the deduplication information.
Claims20
A method for remote data copy using a processor device in a computing environment, the method comprising:
- providing deduplication information for a common data section of first data, stored in the first storage, containing a unique data section and the common data section;
- sending the unique section and the deduplication information for the common data section of the first data using a deduplication index from the first storage to a second storage;
- and
- copying the first data in the second storage based on the deduplication information.
A system for remote data copy, comprising:
- one or more computers with executable instructions that when executed cause the system to:
- provide deduplication information for a common data section of first data, stored in the first storage, containing a unique data section and the common data section;
- send the unique section and the deduplication information for the common data section of the first data using a deduplication index from the first storage to a second storage;
- and
- copy the first data in the second storage based on the deduplication information.
A computer program product for, by a processor, remote data copy, the computer program product comprising a non-transitory computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:
- an executable portion that provides deduplication information for a common data section of first data, stored in the first storage, containing a unique data section and the common data section;
- an executable portion that sends the unique section and the deduplication information for the common data section of the first data using a deduplication index from the first storage to a second storage;
- and
- an executable portion that copies the first data in the second storage based on the deduplication information.
Dependencies are inferred from the claim text.