Board card hot plug control method and system
A control method and hot-swap technology, applied in the direction of instruments, electrical digital data processing, etc., can solve the problems of abnormal startup, disordered power-on sequence, disordered power-on sequence of the main board, etc., and achieve the effect of avoiding abnormal startup.
Active Publication Date: 2021-03-09
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 object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0030] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.
[0031] Based on the above purpose, the first aspect of the embodiments of the present invention proposes an embodiment of a control method for hot plugging of boards that automatically restores the power-on sequence during hot plugging. figure 1 Wha...
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The invention discloses a board card hot plug control method and system, and the method comprises the steps: starting a power-on time sequence control module to power on a board card in response to adetected board card insertion signal, and starting a power-on timing module to time; in response to the fact that the timing of the power-on timing module reaches an abnormal threshold value and the power-on time sequence control module still does not receive the power-on completion interrupt signal, using the charge rapid discharge module for discharging residual charges on the board card; and returning to the first step to re-detect the board card insertion signal in response to determining that the residual charge is completely discharged. According to the method, the power-on time sequencecan be automatically recovered during hot plugging, and abnormal starting is avoided.
Description
technical field [0001] The present invention relates to the field of hot plugging, and more specifically, to a control method and system for board hot plugging. Background technique [0002] Hot swapping refers to a technology that removes or inserts a single board from the host without disconnecting the power supply and the system, and can ensure that the system starts normally before and after plugging, without restarting the host. Storage servers have high requirements for 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 charges, and the larger the capacitance, the stronger the ability to store charges. There are a large number of capacitors on the mainboard of the server. Due to the energy storage function of the capacitor, when the system is powered off or the mainboard is unplugg...
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IPC IPC(8): G06F13/40
CPCG06F13/4081
Inventor 吴常顺
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD