Breakpoint recovery method and system based on heterogeneous hybrid memory
A technology of hybrid memory and recovery methods, applied in the computer field, can solve problems such as system file corruption, abnormal shutdown, user data loss, etc.
Active Publication Date: 2021-03-05
EVOC SMART IOT TECH CO LTD
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Problems solved by technology
In the process of actually using the computer, people often encounter problems such as abnormal shutdown due to unexpected power outages, resulting in system file corruption and user data loss.
[0003] In order to solve problems such as failure to boot into the operating system and loss of user data caused by the above abnormalities, modern operating systems generally support backup functions (automatic scheduled backup, manual backup), that is, when the operating system is running normally, the current operating system The mirror image is backed up to an external storage device (such as a local hard disk, a network hard disk, etc.). Bootable and operational system state
[0004] The traditional operating system recovery method restores only the operating system itself. The programs and operating environment running before the system power failure cannot be restored, only the system image that has been backed up in advance can be restored, and the applications that were running before the system power failure It is not recoverable, so it cannot be counted as breakpoint recovery
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[0047] With the development of emerging nonvolatile random memory (Nonvolatile Memory, NVM) technology represented by resistance memory, ferroelectric memory, phase change memory, etc., by combining the new type of NVM and dynamic random access memory (Dynamic Random Access Memory, DRAM) to build a hybrid memory architecture and form a heterogeneous hybrid memory. Heterogeneous hybrid memory has the characteristics of NVM and DRAM at the same time. It not only has the function of conventional memory, but the data stored in DRAM will disappear immediately after power off, which is volatile; at the same time, it can also play the role of NVM after power off. The advantages of being able to save data, give full play to the non-volatile characteristics of NVM. Such as figure 1 As shown, it is a system architecture diagram of heterogeneous mixed memory, taking the currently more complex x86 architecture 4-way CPU topology as an example, and the principles of other topologies are t...
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The present invention provides a breakpoint recovery method based on heterogeneous mixed memory, power on and on; perform the following steps in the power-on self-check process that is not the first power-on: detect whether the previous shutdown was illegal, and if so, detect whether the NVM There is a pre-backed operating system image, if it exists, copy the operating system image to DRAM, and boot the operating system image from DRAM, if it does not exist, boot the operating system image from an external storage device; if the last time If it is not an illegal shutdown, the operating system image is booted from an external storage device. The method utilizes the feature that the NVM does not disappear when the power is turned off, and can restore the program state and operating environment of the operating system before the illegal shutdown, and realize the breakpoint recovery. In addition, a breakpoint recovery system based on heterogeneous mixed memory is also provided.
Description
technical field [0001] The invention relates to the technical field of computers, in particular to a breakpoint recovery method and system based on heterogeneous hybrid memory. Background technique [0002] Today, with the rapid development of information technology, computers have been widely used in various fields. In the process of actually using the computer, people often encounter problems such as abnormal shutdown due to unexpected power failure and other reasons, resulting in damage to system files and loss of user data. [0003] In order to solve problems such as failure to boot into the operating system and loss of user data caused by the above abnormalities, modern operating systems generally support backup functions (automatic scheduled backup, manual backup), that is, when the operating system is running normally, the current operating system The mirror image is backed up to an external storage device (such as a local hard disk, a network hard disk, etc.). The ...
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IPC IPC(8): G06F9/4401G06F11/14
Inventor 郭齐运马先明熊威庞观士徐成泽王志远沈航梁艳妮陈志列
Owner EVOC SMART IOT TECH CO LTD