Invention Grant
- Patent Title: Techniques for selectively deactivating storage deduplication
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Application No.: US15885037Application Date: 2018-01-31
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Publication No.: US10579593B2Publication Date: 2020-03-03
- Inventor: Ivan Bassov , Ahsan Rashid
- Applicant: EMC IP Holding Company LLC
- Applicant Address: US MA Hopkinton
- Assignee: EMC IP Holding Company, LLC
- Current Assignee: EMC IP Holding Company, LLC
- Current Assignee Address: US MA Hopkinton
- Agency: BainwoodHuang
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F16/11 ; G06F16/174

Abstract:
Techniques for effectively measuring the amount of space saved due to deduplication and selectively turning deduplication off for a filesystem if the savings are too low are provided. The techniques include maintaining both a lower bound count and an upper bound count for block savings due exclusively to deduplication rather than due to snapshots and using an average of the lower and upper bounds to estimate the actual savings due to deduplication in order decide whether to continue operating deduplication or not.
Public/Granted literature
- US20190236163A1 TECHNIQUES FOR SELECTIVELY DEACTIVATING STORAGE DEDUPLICATION Public/Granted day:2019-08-01
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