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Storage system with data reliability mechanism and method of operation thereof

A storage system, non-volatile storage technology, applied in the field of data reliability systems, can solve problems such as no teaching or implied solutions, and achieve the effects of improving data reliability and recovery, reducing costs, and improving efficiency and performance

Pending Publication Date: 2019-03-15
CNEX LABS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Solutions to these problems have been long sought, but prior developments have not taught or suggested any solutions, and thus, these problems have long remained unresolved by those skilled in the art

Method used

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  • Storage system with data reliability mechanism and method of operation thereof
  • Storage system with data reliability mechanism and method of operation thereof
  • Storage system with data reliability mechanism and method of operation thereof

Examples

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Embodiment Construction

[0015] The following examples are described in sufficient detail to enable those skilled in the art to make and use the invention. It is to be understood that other embodiments will be apparent from the present disclosure and that system, process or mechanical changes may be made without departing from the scope of the embodiments of the invention.

[0016] In the following description, numerous specific details are given in order to provide a thorough understanding of the present invention. It may be evident, however, that the present invention may be practiced without these specific details. To avoid obscuring the embodiments of the invention, some well-known circuits, system configurations, and process steps have not been disclosed in detail.

[0017] The figures showing system embodiments are semi-diagrammatic and not drawn to scale, and in particular some dimensions are shown exaggerated in the figures for the purpose of clarity of presentation. Similarly, although the ...

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PUM

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Abstract

A storage system includes: a control processor unit, configured to: initiating a read of a raw data page, having correctable errors, calculating a raw bit error rate (RBER) (EQ1) by correcting the correctable errors to become corrected data and comparing raw data with the corrected data, and calculating a correction model characterization based on the RBER (EQ1); and a non-volatile storage array,coupled to the control processor unit, configured to store a processed data page in a physical block with the raw data page; and wherein the control processor unit is further configured to apply the correction model characterization to the raw data page in the physical block.

Description

technical field [0001] Embodiments of the invention relate generally to storage systems and, more particularly, to systems for data reliability. Background technique [0002] The proliferation of smart devices in our daily lives has driven the development of non-volatile memory, such as NAND flash memory, to support these devices. To lower the cost per gigabyte of NAND flash memory, memory devices have been made more compact by packing more data into the same silicon area, by shrinking the size of flash memory cells, and storing more bits in each flash memory cell. Dense, but this method of reducing cell size comes at the cost of readback reliability. A mechanism had to be found to provide the required data reliability while minimizing repeated reads of NAND flash pages. [0003] Therefore, there remains a need for storage systems with data reliability mechanisms to provide improved data reliability and recovery. Finding answers to these questions is increasingly importan...

Claims

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Application Information

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IPC IPC(8): G06F12/02G06F11/07
CPCG06F11/0727G06F12/0246G11C13/004G11C16/28G06F11/1012G11C11/5642G06F11/1072G11C16/26G11C2013/0057G11C29/52H03M13/6325H03M13/612H03M13/1111G11C16/08G06F11/073G11C16/3418G11C29/10
Inventor 张骁杰
Owner CNEX LABS
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