Method and system for relocating files that are partially stored in remote storage
First Claim
1. A method of relocating a first file, having at least one portion on-disk and at least one portion migrated to remote storage, to a second file in a computer system, comprising:
- allocating space for said second file corresponding to said at least one on-disk portion of said first file;
relocating said at least one on-disk portion of said first file to the corresponding space allocated for said second file; and
updating metadata, previously generated for use with said first file, for use with said second file.
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Accused Products
Abstract
An improved hierarchical storage management (HSM) system used in connection with computer systems is provided. A technique is provided whereby a file having portion(s) migrated to remote storage location(s) may be efficiently relocated, and metadata for the file is updated according to its relocated storage relationships. Thus, when a source file having portions migrated to remote storage is to be re-located or copied by the HSM system to a target file, instead of copying the entire file across all of its associated storage locations, the minimum or efficient set of data is relocated. The metadata describing the source file'"'"'s migration storage characteristics is updated to reflect its new use in connection with the target file.
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Citations
9 Claims
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1. A method of relocating a first file, having at least one portion on-disk and at least one portion migrated to remote storage, to a second file in a computer system, comprising:
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allocating space for said second file corresponding to said at least one on-disk portion of said first file;
relocating said at least one on-disk portion of said first file to the corresponding space allocated for said second file; and
updating metadata, previously generated for use with said first file, for use with said second file. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification