Invention Grant
- Patent Title: Method and system for blending data reclamation and data integrity garbage collection
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Application No.: US15422418Application Date: 2017-02-01
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Publication No.: US10339044B2Publication Date: 2019-07-02
- Inventor: James M. Higgins , Ryan R. Jones
- Applicant: SanDisk Technologies LLC
- Applicant Address: US TX Plano
- Assignee: SanDisk Technologies LLC
- Current Assignee: SanDisk Technologies LLC
- Current Assignee Address: US TX Plano
- Agency: Dickinson Wright PLLC
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F12/02 ; G06F11/10

Abstract:
The various implementations described herein include systems, methods and/or devices used for garbage collection in memory system. The method includes: (1) determining occurrences of triggering events including data reclamation events, urgent data integrity recycling events, and scheduled data integrity recycling events, and (2) recycling, in response to each of a plurality of triggering events, data in a predefined quantity of memory units from a source memory portion to a target memory portion of the memory system. A respective data reclamation event corresponds to the occurrence of host data write operations in accordance with a target reclamation to host write ratio. A respective urgent data integrity recycling event occurs when a memory portion satisfies predefined urgent read disturb criteria. A respective scheduled data integrity recycling event occurs at a rate corresponding to a projected quantity of memory units to be recycled by the memory system over a period of time.
Public/Granted literature
- US20170286288A1 Method and System for Blending Data Reclamation and Data Integrity Garbage Collection Public/Granted day:2017-10-05
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