Optimized data placement for individual file accesses on deduplication-enabled sequential storage systems
AssigneeInternational Business Machines Corporation
InventorsMIHAIL C. CONSTANTINESCU, ABDULLAH GHARAIBEH, MAOHUA LU, DAVID A. PEASE, ANURAG SHARMA
Life of this patent
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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.
Claims20
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.
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.
A tape storage system, comprising:
- 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.
Dependencies are inferred from the claim text.