System and method for online data migration
First Claim
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1. A method of changing storage drive contents, comprising:
- installing a virtual storage driver in a computer system, wherein the virtual storage driver redirects access requests directed to a main storage of the computer system to one of the main storage and a temporary storage;
copying files from the main storage to the temporary storage;
restoring files from a source storage into the main storage by overwriting corresponding files in the main storage; and
redirecting, to the temporary storage, requests for access directed to files of the main storage that have been copied to the temporary storage.
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Abstract
A method and system for changing storage drive contents, including installing a virtual storage driver in a computer system, wherein the virtual storage driver redirects access requests directed to a main storage of the computer system to one of the main storage and a temporary storage; copying files from the main storage to the temporary storage; restoring files from a source storage into the main storage by overwriting corresponding files in the main storage; and redirecting, to the temporary storage, requests for access directed to files of the main storage that have been copied to the temporary storage.
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Citations
20 Claims
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1. A method of changing storage drive contents, comprising:
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installing a virtual storage driver in a computer system, wherein the virtual storage driver redirects access requests directed to a main storage of the computer system to one of the main storage and a temporary storage; copying files from the main storage to the temporary storage; restoring files from a source storage into the main storage by overwriting corresponding files in the main storage; and redirecting, to the temporary storage, requests for access directed to files of the main storage that have been copied to the temporary storage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for changing storage drive contents comprising:
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a computer system having a main storage, a temporary storage, and a source storage; a virtual storage driver installed into an operating system of a computer, wherein the virtual storage driver redirects access requests to a main storage to one of the main storage and a temporary storage; and a background process running on the computer system that copies files from the main storage to the temporary storage and that restores files from a source storage into the main storage by overwriting corresponding files in the main storage, wherein the requests for access to files of the main storage that have been copied to the temporary storage are redirected to the temporary storage. - View Dependent Claims (16, 17, 18, 19)
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20. A computer program product for changing storage drive contents, the computer program product comprising a computer useable medium having computer program logic recorded thereon for controlling at least one processor, the computer program logic comprising:
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computer program code means for installing a virtual storage driver in a computer system, wherein the virtual storage driver redirects access requests directed to a main storage of the computer system to one of the main storage and a temporary storage; computer program code means for copying files from the main storage to the temporary storage; computer program code means for restoring files from a source storage into the main storage by overwriting corresponding files in the main storage; and computer program code means for redirecting, to the temporary storage, requests for access directed to files of the main storage that have been copied to the temporary storage.
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Specification