Invention Grant
- Patent Title: Methods and apparatus to preserve data of a solid state drive during a power loss event
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Application No.: US15419563Application Date: 2017-01-30
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Publication No.: US09740419B2Publication Date: 2017-08-22
- Inventor: Yogesh B. Wakchaure , Aliasgar Madraswala , Pranav Kalavade , Xin Guo , David Pelster , Myron Loewen , Feng Zhu , Brennan A. Watt
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Hanley, Flight & Zimmerman, LLC
- Main IPC: G11C11/34
- IPC: G11C11/34 ; G06F3/06 ; G06F12/0811
Abstract:
Methods, apparatus, systems and articles of manufacture to preserve data of a solid state drive during a power loss event are disclosed. An example method includes setting an alternate data cache (PDC1) to a logical AND of a secondary data cache (SDC) and a primary data cache (PDC0). The PDC1 is set to a logical AND of the PDC1 and a first result of a first sense operation. The PDC0 is set to a logical AND of the PDC0 and an inverse value of the PDC1. The PDC1 is set to a logical AND of the SDC and the PDC0. The PDC1 is set to a logical AND of the PDC1 and an inverse value of a second result of a second sense operation. The SDC is set to a logical AND of the SDC and the PDC0. The SDC is set to a logical OR of the SDC or the PDC0. The PDC0 is set to a logical AND of the PDC0 and a third result of a third sensing operation.
Public/Granted literature
- US20170139626A1 METHODS AND APPARATUS TO PRESERVE DATA OF A SOLID STATE DRIVE DURING A POWER LOSS EVENT Public/Granted day:2017-05-18
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