Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power-down protection method for memory device based on NVDIMM (non-volatile dual in-line memory module)

A storage device and power-down protection technology, applied in the direction of protecting storage content from loss, etc., can solve the problems of high battery power demand, complex system implementation, short storage time, etc., to reduce volume and capacity, save system space, and light weight Effect

Inactive Publication Date: 2014-09-03
INSPUR GROUP CO LTD
View PDF6 Cites 41 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to solve the problem of data loss when the system is abnormally powered off in the prior art, and the existing power-down protection mode has short storage time, high demand for battery power, and complex system implementation, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power-down protection method for memory device based on NVDIMM (non-volatile dual in-line memory module)
  • Power-down protection method for memory device based on NVDIMM (non-volatile dual in-line memory module)
  • Power-down protection method for memory device based on NVDIMM (non-volatile dual in-line memory module)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The power-down protection method of a storage device based on NVDIMM of the present invention adopts NVDIMM in the storage device, and the NVDIMM is a non-volatile memory chip with a memory, a supercapacitor, a control circuit and a flash memory, and the storage device has a logic control circuit To monitor the system power status in real time. When the system power supply fails, the logic control circuit will notify the NVDIMM after receiving the power failure signal. NVDIMM starts to use its own super capacitor to supply power to itself. NVDIMM stores the data in the memory through the control circuit. In the flash memory, when the system power is restored, NVDIMM will put the data stored in the flash memory in the last power failure into the memory through the control circuit, and the computer system will continue to run from the position of the last abnormal power failure, thereby realizing the power failure of the storage device Protect.

Embodiment 2

[0043] The power-down protection method of a storage device based on NVDIMM of the present invention adopts NVDIMM in the storage device, and the NVDIMM is a non-volatile memory chip with a memory, a supercapacitor, a control circuit and a flash memory, and the storage device has a logic control circuit To monitor the system power status in real time. When the system power supply fails, the logic control circuit will notify the NVDIMM after receiving the power failure signal. NVDIMM starts to use its own super capacitor to supply power to itself. NVDIMM stores the data in the memory through the control circuit. In the flash memory, when the system power is restored, NVDIMM will put the data stored in the flash memory in the last power failure into the memory through the control circuit, and the computer system will continue to run from the position of the last abnormal power failure, thereby realizing the power failure of the storage device Protect.

[0044] The system power s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a power-down protection method for a memory device based on an NVDIMM (non-volatile dual in-line memory module), and belongs to the power-down protection method of the memory device, which is used for solving a data loss problem when a system is powered down abnormally in the prior art and a problem that the existing power protection way is short in storage time, high in battery capacity demand, and complex in system realization. According to the power-down protection method for the memory device based on the NVDIMM disclosed by the invention, the NVDIMM is adopted in the memory device, and the state of a system power supply is detected by a logic control circuit; the NVDIMM is noticed when the system power supply is powered down accidentally, and storage for data is completed by the NVDIMM; when the system power supply is restored, the NVDIMM memorizes the data stored in last power-down in an internal memory, and a computer system continuously operates from a position on which power is down accidentally last time, so that power-down protection for the memory device is realized.

Description

[0001] technical field [0002] The invention relates to a power-down protection method for a storage device, in particular to a power-down protection method for an NVDIMM-based storage device. Background technique [0003] Dedicated storage devices have high requirements on data security. When writing data to the hard disk, the data is first written to the memory, and then written to the hard disk from the memory. Since ordinary memory is a volatile storage medium, during the process of writing data to the hard disk through this type of memory, if the system powers off abnormally, all data in the memory that has not been written to the hard disk will be lost. Therefore, in the event of an abnormal power failure, the storage device must save all the data in the memory that has not yet been written to the hard disk to avoid data loss, that is, the power-down protection of the storage device. [0004] At present, there are three main ways to protect the storage device from...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/16
Inventor 高明李公臣金长新
Owner INSPUR GROUP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com