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SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR DEDUPLICATION AWARE QUALITY OF SERVICE OVER DATA TIERING

  • US 20140310455A1
  • Filed: 04/12/2013
  • Published: 10/16/2014
  • Est. Priority Date: 04/12/2013
  • Status: Active Grant
First Claim
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1. A computer program product for ensuring compliance of service levels corresponding to file-system operations in a deduplicated, tiered storage system comprising storage devices of varying performance levels, each of the performance levels being associated with at least one service level, the computer program product comprising a computer readable storage medium having program code embodied therewith, the program code readable/executable by a processor to:

  • perform a deduplication remapping operation, by the processor, so that a data item corresponding to a higher service level, is stored as an original on a higher performance storage tier while duplicates of the data item corresponding to a lower service level exist in lower performance storage tier at least in part as pointers to the data item on the higher performance storage tier.

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