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A method and system for triggering NVDIMM-N backup during normal shutdown

A shutdown, normal technology, applied in the direction of response to error generation, error detection/correction, redundant data error detection in calculations, etc., can solve the problem of not performing data backup, data recovery, slow boot speed, and reducing the system Reliability and other issues to achieve the effect of ensuring integrity, improving data recovery speed and boot speed, and improving system reliability

Inactive Publication Date: 2019-03-15
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current NVDIMM-N trigger conditions are limited by the shutdown conditions, and the backup can only be triggered when the server system suddenly loses power or is forced to shut down, and data backup is not performed when the server system is shut down normally
[0004] Considering that NVDIMM-N does not back up when the server is normally shut down, when the server system normally exits from the OS (Operating System, operating system) and then re-enters the OS (normal shutdown and restart), the data in the NVDIMM-N may be lost, even if The data in the NVDIMM-N is not lost, and the OS will also consider the data in the NVDIMM-N to be untrustworthy. At this time, the APP under the OS will not use the data in the previous NVDIMM-N when running, and will reload the data from the hard disk to run. , resulting in slow data recovery and boot speed, reducing system reliability

Method used

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  • A method and system for triggering NVDIMM-N backup during normal shutdown
  • A method and system for triggering NVDIMM-N backup during normal shutdown
  • A method and system for triggering NVDIMM-N backup during normal shutdown

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Embodiment Construction

[0033] The purpose of the present invention is to provide a method, device and system for triggering NVDIMM-N backup during normal shutdown. By this method, data backup is also performed when the server system is normally shut down, ensuring the integrity of the data. When booting, the OS will trust the backup data in the NVDIMM-N, and will read the data directly from the NVDIMM-N, improving the speed of data recovery and booting, and improving the reliability of the system.

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments ob...

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Abstract

The invention discloses method and system for triggering NVDIMM-N backup during normal shutdown. The present application takes into account that the operating state parameters of the server system atthe time of normal shutdown, sudden power-down and forced shutdown are different, and determines whether the shutdown is normal or not by obtaining the operating state parameters of the server systemat the time of shutdown, and triggers the NVDIMM-N to carry out data backup. By using this method, the server system can backup data when it shuts down normally, which ensures the integrity of data. When the server is turned on again after shutting down normally, the OS will trust NVDIMM-N, the backup data will be directly from the NVDIMM-N, the speed of data recovery and boot-up is improved, andthe reliability of the system is improved. The invention also discloses a device and the system for triggering NVDIMM-N backup during normal shutdown and have the same beneficial effects as the methoddescribed above.

Description

technical field [0001] The invention relates to the technical field of data backup, in particular to a method and system for triggering NVDIMM-N backup during normal shutdown. Background technique [0002] On the Intel X86 platform, when using NVDIMM-N (memory module), it supports NVDIMM-N trigger backup. NVDIMM-N includes DRAM (Dynamic Random Access Memory, dynamic random access memory), NAND Flash (non-volatile flash memory) and super capacitor, which can still save complete memory data when the power is completely cut off. [0003] Specifically, when the server system suddenly loses power or is forced to shut down, the server system will save the DRAM data in the NVDIMM-N to the NAND Flash. This process is powered by a super capacitor to ensure that it can still be saved without power from the server system Data, when the server system is powered on again, the data is restored from NAND Flash to DRAM, and the corresponding operations of the server system can also be rest...

Claims

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Application Information

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IPC IPC(8): G06F11/14
CPCG06F11/1448
Inventor 杨学总
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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