OPTIMIZED DATA PLACEMENT FOR INDIVIDUAL FILE ACCESSES ON DEDUPLICATION-ENABLED SEQUENTIAL STORAGE SYSTEMS
First Claim
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1. A method of data deduplication for data storage tapes, comprising:
- determining the read throughput of a deduplicated set of individual files on a single data storage tape; and
determining a placement of deduplicated file data on a single data storage tape to reduce an average number of per-file gaps on the tape; and
placing deduplicated file data on the single data storage tape based on said placement to increase an average read throughput for a deduplicated set of individual files.
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Abstract
Data deduplication for data storage tapes comprises determining the read throughput of a deduplicated set of individual files on a single data storage tape, and determining a placement of deduplicated file data on a single data storage tape to reduce an average number of per-file gaps on the tape. Deduplicated file data is placed on the single data storage tape based on said placement to increase an average read throughput for a deduplicated set of individual files.
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20 Claims
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1. A method of data deduplication for data storage tapes, comprising:
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determining the read throughput of a deduplicated set of individual files on a single data storage tape; and determining a placement of deduplicated file data on a single data storage tape to reduce an average number of per-file gaps on the tape; and placing deduplicated file data on the single data storage tape based on said placement to increase an average read throughput for a deduplicated set of individual files. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer program product for data deduplication for data storage tapes, the computer program product comprising:
a tangible storage medium readable by a computer system and storing instructions for execution by the computer system for performing a method comprising; determining a placement of deduplicated file data on a single data storage tape to reduce an average number of per-file gaps on the tape; and placing deduplicated file data on the single data storage tape based on said placement to increase an average read throughput for a deduplicated set of individual files. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A tape storage system, comprising:
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a tape drive for storing data on a storage tape; and a controller that determines the read throughput of a deduplicated set of individual files on a single data storage tape, determines a placement of deduplicated file data on a single data storage tape to reduce an average number of per-file gaps on the tape, and places deduplicated file data on the single data storage tape based on said placement to increase an average read throughput for a deduplicated set of individual files. - View Dependent Claims (20)
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Specification