Invention Grant
- Patent Title: Method and system involving degradation of non-volatile memory based on write commands and drive-writes
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Application No.: US16928737Application Date: 2020-07-14
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Publication No.: US11538539B2Publication Date: 2022-12-27
- Inventor: Jay Sarkar , Cory Peterson , Amir Sanayei , Vidyabhushan Mohan , Yao Zhang
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: G06F12/02
- IPC: G06F12/02 ; G11C16/34 ; G11C29/52 ; G06N7/00 ; G06F3/06 ; G06N5/04 ; G11C29/04

Abstract:
Systems and methods for solid-state storage drive-level failure prediction and health metric are described. A plurality of host-write commands are received at a solid-state storage device. A number of drive-writes per day based on the on the plurality of host-write commands is determined. An aggregated amount of degradation to one or more internal non-volatile memory components based on the number of drive-writes per day is determined. Using a machine-learned model, a probability of failure value based on a set of parameter data and the aggregated amount of degradation to the non-volatile memory component is generated. An alert is generated, based on the probability of failure value or degradation threshold.
Public/Granted literature
- US20200342945A1 Method and System Involving Degradation of Non-Volatile Memory Based on Write Commands and Drive-Writes Public/Granted day:2020-10-29
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