A kind of board card hot swap control method and system
A control method and hot-swap technology, applied in the direction of instruments, electrical digital data processing, etc., can solve problems such as abnormal startup, disordered power-on sequence of the main board, and disordered power-on sequence, and achieve the effect of avoiding abnormal startup.
Active Publication Date: 2022-07-19
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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Problems solved by technology
In some scenarios, it is necessary to quickly unplug the main board. If the voltage of the single board is still high when the board is pulled out and then plugged into the main board again, the power-on sequence of the main board may be disordered, which may cause startup exceptions.
[0003] There is currently no effective solution to the problems of power-on sequence confusion and abnormal startup caused by hot-swapping in the prior art
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[0029] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be further described in detail below with reference to the specific embodiments and the accompanying drawings.
[0030] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two entities with the same name but not the same or non-identical parameters. It can be seen that "first" and "second" It is only for the convenience of expression and should not be construed as a limitation to the embodiments of the present invention, and subsequent embodiments will not describe them one by one.
[0031] Based on the above objective, in the first aspect of the embodiments of the present invention, an embodiment of a method for controlling hot-plugging of a board card that automatically restores the power-on sequence during hot-p...
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The invention discloses a method and a system for controlling hot-plugging of a board card. The method includes: in response to detecting a board card insertion signal, starting a power-on sequence control module to power on the board card, and starting the power-on timing module to count; When the timing of the power-on timing module reaches the abnormal threshold, and the power-on sequence control module has not yet received the power-on completion interrupt signal, the rapid charge discharge module is used to discharge the residual charge on the board; in response to determining that the discharge of the residual charge is completed And return to the first step to re-detect the board insertion signal. The present invention can automatically restore the power-on sequence during hot-plugging and avoid abnormal startup.
Description
technical field [0001] The present invention relates to the field of hot-plugging, and more particularly, to a method and system for controlling hot-plugging of a board card. Background technique [0002] Hot-swap refers to a technology that removes or inserts a single board from the host without the user disconnecting the power supply and the system, and can ensure that the system starts normally before and after plugging and unplugging, without restarting the host. Storage servers have high requirements on system stability and business continuity. In order to facilitate the replacement of the mainboard when the host is powered off, the server mainboard must be able to meet the requirements of hot swapping. Capacitors have the ability to store electric charges, and the larger the capacitance, the stronger the ability to store electric charges. There are a lot of capacitors on the server motherboard. Due to the energy storage effect of capacitors, when the system is powered...
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IPC IPC(8): G06F13/40
CPCG06F13/4081
Inventor 吴常顺
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD