INFORMATION SYSTEM AND METHOD FOR MANAGING DATA IN INFORMATION SYSTEM
First Claim
1. An information system coupled to a plurality of storage devices, the information system comprising:
- a control unit, a memory unit and a storage device unit,wherein the control unit creates a file sharing information for sharing a file at the time of a first data migration for migrating a file in the storage device unit to a first storage device, and maps the file sharing information to the file being subjected to data migration; and
after a second data migration for migrating the file in the storage device unit to a second storage device that differs from the first storage device, the control unit maps the file being subjected to data migration to the file sharing information.
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Abstract
The prior art information system could not migrate a file in a file sharing system provided by a file storage to a plurality of cloud storages having different forms of connection and different properties, and therefore, could not manage the files via a single Stub information. The present invention provides a data mover program in a file storage to select one or more migration destination cloud storages based on a migration policy, a connection information table of cloud storages and a property information table of cloud storages. Then, a Stub information of the migrated file is created, and an identification information of the file in the cloud storage is stored in a file information table. When access occurs from a client to a file storage, the data mover program downloads a file from the cloud storage stored in the file information table corresponding to the Stub information and provides the file to the client.
36 Citations
19 Claims
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1. An information system coupled to a plurality of storage devices, the information system comprising:
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a control unit, a memory unit and a storage device unit, wherein the control unit creates a file sharing information for sharing a file at the time of a first data migration for migrating a file in the storage device unit to a first storage device, and maps the file sharing information to the file being subjected to data migration; and after a second data migration for migrating the file in the storage device unit to a second storage device that differs from the first storage device, the control unit maps the file being subjected to data migration to the file sharing information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An information system coupled to a plurality of storage devices, the information system comprising:
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a control unit, a memory unit and a storage device unit, wherein the control unit creates a file sharing information for sharing a file at the time of a first data migration for migrating a file in the storage device unit to a first storage device, and maps the file sharing information to the file being subjected to data migration; after a second data migration for migrating the file in the storage device unit to a second storage device that differs from the first storage device, the control unit maps the file being subjected to data migration to the file sharing information; and the control unit copies the file subjected to data migration to a third storage device that differs from the first and second storage devices, and based on a connection information of the second storage device, maps the second storage device to the third storage device. - View Dependent Claims (15, 16, 17)
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18. A method for managing data in an information system coupled to a plurality of storage devices, the information system comprising:
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a control unit, a memory unit and a storage device unit, wherein the control unit creates a file sharing information for sharing the file at the time of a first data migration of a file in the storage device unit to a first storage device which is one of said plurality of storage devices, and maps the file sharing information to the file being subjected to data migration; and after a second data migration for migrating the file in the storage device unit to a second storage device that differs from the first storage device, the control unit maps the file being subjected to data migration to the file sharing information. - View Dependent Claims (19)
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Specification