CN219958181U - Computing equipment - Google Patents

Abstract

The embodiment of the utility model provides computing equipment. The computing device includes: the device comprises a case, a hard disk bracket, a hard disk backboard and a controller. The chassis is provided with a hard disk slot position for inserting a hard disk bracket. The hard disk handle bar of the hard disk bracket is provided with a detection device. When the opening of the hard disk handle bar is detected, the detection device outputs a detection signal. The hard disk backboard is provided with a trigger circuit and a logic device. When the detection device outputs a detection signal, the trigger circuit generates a trigger signal and sends the trigger signal to the logic device. Upon receiving the trigger signal, the logic device generates a down signal. When the controller receives the power-down signal sent by the logic device, the controller controls the hard disk slot to be powered down. In the computing equipment, the opening action of the hard disk handle bar is detected from the detection device, and the target hard disk is powered down, so that the whole process is automatically completed by the hardware system, the user is not required to enter an operating system for processing, and the operation is simpler and more convenient.

Description

Computing equipment

Technical Field

The utility model relates to the technical field of servers, in particular to a computing device.

Background

With the rapid development of servers, the application scenes and the use requirements of the hard disk in the servers are more and more. The hard disk hot plug function of the server system can realize the insertion or the extraction of the hard disk into or from the server system without closing the power supply of the system, and the normal operation of the system is not influenced. In the existing hot plug method, a user needs to perform hot plug setting through an operating system so as to perform hot plug on a hard disk, and the operation is complex.

Disclosure of Invention

In order to solve the above problems, the embodiments of the present utility model provide a computing device, which detects the action of hot-plugging a hard disk, and notifies a server to power down the hard disk, so that the user is not required to perform hot-plug setting through an operating system, and the operation is simple.

An embodiment of the present utility model provides a computing device, including: the case is provided with a hard disk slot; the hard disk bracket is inserted into the hard disk slot and is used for bearing a hard disk, the hard disk bracket comprises a hard disk handle bar, a detection device is arranged on the hard disk handle bar, and the detection device is used for outputting a detection signal when detecting that the hard disk handle bar is opened; the hard disk backboard is provided with a trigger circuit and a logic device, the trigger circuit is electrically connected with the detection device and the logic device, the trigger circuit is used for generating a trigger signal when the detection device outputs a detection signal, the trigger signal is sent to the logic device, and the logic device is used for generating a power-down signal when receiving the trigger signal; and the controller is electrically connected with the logic device, and when receiving a power-down signal sent by the logic device, the controller controls the hard disk slot to be powered down.

In this embodiment, the detection means always detects the state of the hard disk handle bar. When the opening of the hard disk handle bar is detected, the detection device generates a trigger signal and sends the trigger signal to the logic device. Based on the trigger signal, the logic device generates a down-signal. And the controller controls the hard disk slot position to be electrified according to the electrified signal. After the hard disk slot is powered down, the hard disk can be directly pulled out. The opening action of the hard disk handle bar is detected from the detection device, and the hard disk slot is powered down, so that the whole process is automatically completed by the hardware system, the user does not need to enter an operating system for processing, and the operation is simpler and more convenient. In an example, in a scenario of multiple hard disks, the server needs to determine a hard disk slot where the target hard disk is located, so as to prevent the phenomenon that the powered-down hard disk slot is inconsistent with the target hard disk. The logic device of the embodiment of the utility model judges the hard disk slot position corresponding to the trigger signal based on the trigger signal and sends the down electric signal to the controller, wherein the down electric signal comprises the identification of the target hard disk. And the controller determines the hard disk slot position needing to be powered down based on the received identification of the target hard disk. In the embodiment of the utility model, the hard disk handle bar is fixedly connected with the hard disk and has a unique corresponding relation, so that the trigger signal sent by the hard disk handle bar and the target hard disk also have a unique corresponding relation. Therefore, the power-down object of the controller is also uniquely determined, and only the hard disk slot corresponding to the trigger signal is powered down. Therefore, the inconsistency between the powered-down hard disk and the target hard disk can be avoided. In one application scenario, the computing device may be a server.

In one embodiment, the hard disk handle bar includes a button; and a detection device for outputting a detection signal when the button is detected to be pressed.

In this embodiment, the hard disk handle bar includes a handle bar and a button. When the hard disk is pulled out, the button needs to be pressed, and the handle bar starts to pop up. Thus, a button press may be considered a pre-action of the hard disk handle bar opening. And after the handle bar is completely popped up, the target hard disk is plugged in and pulled out. The detection device detects the button pressing action and generates a trigger signal. In the embodiment of the utility model, the behavior of hot plugging the hard disk by a user is judged by detecting the pre-action of opening the existing hard disk handle bar. Therefore, the user does not need to add other triggering actions and train the user, so that the cost is saved and the user experience is improved.

In another embodiment, the detection device comprises a sensor. The sensor is electrically connected with the trigger circuit; and a sensor for outputting a detection signal when a button press is detected.

In this embodiment, the sensor is used to detect a pre-action of the hard disk handle bar opening. When the button is pressed, the sensor generates a trigger signal. The whole process does not need human participation, and the efficiency is high.

In another embodiment, the hard disk carrier is provided with a first connector, the first connector being electrically connected to the detection device; the hard disk backboard is provided with a second connector which is electrically connected with the trigger circuit; the first connector is used for being connected with the second connector in a plugging mode when the hard disk bracket is plugged in the hard disk slot.

In this embodiment, two connectors are added to the hard disk carrier and the hard disk back plate, respectively, to achieve communication connection between the detection device and the logic device. The embodiment utilizes the existing hard disk bracket and hard disk backboard, and realizes the communication connection between the detection device and the logic device after the hard disk bracket and the hard disk backboard are modified. The connection mode is simple and easy to realize, and the complexity of the computing equipment is reduced.

In another embodiment, the trigger circuit includes a switching device. The control end of the switching device is electrically connected with the detection device, and the input end of the switching device is electrically connected with the logic device. When the detection device outputs a detection signal, the switching device is turned on to generate a trigger signal, and the trigger signal is transmitted to the logic device.

In this embodiment, the trigger signal generated by the switching device being turned on may be a low level signal or a high level signal in some examples. When the hard disk handle bar is opened, the detection device outputs a detection signal. The detection signal is input to the control terminal of the switching device, and the switching device is turned on. After the switching device is turned on, a trigger signal is generated. The switching device may be an electronic device or may be implemented through logic device simulation, so that the trigger circuit is easy to apply and implement.

In another embodiment, the trigger circuit further comprises a first resistor and a second resistor. Between the logic device and the input of the switching device. The first resistor may change a voltage of the logic device when the switching device outputs the trigger signal. And the second resistor is positioned between the detection device and the control end of the switching device. The second resistor may change the voltage of the control terminal of the switching device when the detection device outputs the detection signal.

In this embodiment, the first resistor may supply a voltage to the logic device, and change the voltage of the logic device when the switching device outputs the trigger signal. The second resistor may supply a voltage to the switching device, and change a voltage of a control terminal of the switching device when the detection device outputs the detection signal, thereby controlling the switching device to be in an on state or an off state. Further, the first resistor and the second resistor can also prevent the trigger circuit from short circuit

In another embodiment, the trigger circuit further comprises a third resistor. One end of the third resistor is electrically connected with the power supply voltage, and the other end of the third resistor is electrically connected with the input end of the switching device and the logic device respectively. The third resistor may provide a supply voltage to the logic device when the switching device is turned off.

In this embodiment, the third resistor provides the power supply voltage for the logic device when the switching device is turned off. The third resistor can also prevent the short circuit from occurring due to the direct application of the supply voltage to the input of the switching device.

In another embodiment, the trigger circuit further comprises a first capacitor; one end of the first capacitor is respectively connected with the control ends of the detection device and the switching device; and the first capacitor is used for filtering the detection signal when the detection device outputs the detection signal.

In this embodiment, the first capacitor filters the detection signal when the detection device outputs the detection signal. The first capacitor can filter the high peak value of the voltage, and filter the abnormal voltage value of the detection signal, so that the trigger circuit or the switching device is protected.

In another embodiment, the switching device is a field effect transistor; the control end of the switching device is the grid electrode of the field effect transistor, and the input end of the switching device is the drain electrode of the field effect transistor.

In this embodiment, voltage control of the logic device is achieved using the switching characteristics of the field effect transistor. The field effect transistor is turned on to reduce or raise the voltage at the input of the logic device. One specific implementation of the trigger signal output by the field effect transistor may be a voltage signal with a falling edge from high to low or a voltage signal with a rising edge from low to high. The related art of the field effect transistor is well-established, and the process of triggering the logic device by the trigger signal is simplified.

In another embodiment, the logic device is a complex programmable logic device, and the complex programmable logic device is electrically connected to the trigger circuit and the controller, and is configured to generate the power-down signal when the trigger signal is received.

In this embodiment, a complex programmable logic device is a specific implementation of a logic device. The complex programmable logic device can be a newly added chip or an existing chip on the hard disk backboard. The technology of the complex programmable logic device is mature and easy to realize.

In another embodiment, the controller is a central processing unit (Central Processing Unit, CPU) electrically connected to the logic device, and the central processing unit is configured to power down the hard disk slot when receiving the power down signal.

In this embodiment, the controller is a central processing unit, and when the central processing unit receives the power-down signal, the power-down operation can be directly performed on the hard disk slot. In some examples, when the controller is a general processor, the power-down signal needs to be compiled first, then the power-down request is generated, and finally the power-down request is sent to the central processor. The controller is a central processing unit, so that the signal transmission process when the controller is a common processor is reduced.

Drawings

The drawings that accompany the detailed description can be briefly described as follows.

Fig. 1 is a schematic view of a scenario of a server according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a computing device provided in an embodiment of the utility model;

FIG. 3 is a schematic diagram of a detection device according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a trigger circuit according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a computing device including a connector provided in an embodiment of the utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.

In the description of the present utility model, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or by an abutting or integral connection; the specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. In embodiments of the utility model, "contacting" or "coupling" may refer to direct contact between components, or may refer to contact between components by an adhesive or a thermally conductive gel.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

First, some concepts related to a computing device and a server provided by an embodiment of the present utility model are explained:

hot plug: hot plug (Hot Swap) refers to the insertion or extraction of a module or a board card into or from a system without affecting the normal operation of the system under the condition of not shutting down the power supply of the system, thereby improving the reliability, the quick maintainability, the redundancy, the timely recovery capability to disasters and the like of the system.

Target hard disk: when a user hot plugs one or more hard disks, the one or more hard disks are referred to as target hard disks.

Fig. 1 is a schematic view of a server according to an embodiment of the present utility model. In the application scenario shown in fig. 1, the hard disk handle bar needs to be opened first, and then the hard disk needs to be pulled out. For hard disk removal, one of the common scenarios is hard disk hot plug. The first solution is to perform notification type hot plug through an Operating System (OS) command. The second solution supports violent hot plug after instruction manipulation with virtual machine memory (Virtual Machine Disk, VMD) open in the basic input output system (Basic Input Output System, BIOS).

The first solution requires operation processing under the OS every time the hard disk is powered down. The second solution requires operation under the BIOS. The two solutions are complex and troublesome in operation and poor in user experience. Because the operation is performed manually, the phenomenon of unplugging the hard disk or power-down by mistake caused by misoperation can also occur, and data loss and hard disk damage are caused.

Another solution is proposed by embodiments of the present utility model. As shown in fig. 1, a computing device 100 includes: chassis 110, hard disk bracket 120, hard disk back plate 130, controller 140.

In the embodiment of the present utility model, the chassis 110 has a hard disk slot, and the hard disk bracket 120 is inserted into the hard disk slot. The hard disk bracket 120 is used for carrying a hard disk. The hard disk bracket 120 includes a hard disk handle bar on which a detection device is provided. The hard disk back plate 130 is provided with a trigger circuit and a logic device, the trigger circuit is electrically connected with the detection device, and the trigger circuit is also electrically connected with the logic device. The controller 140 is electrically connected to the logic device 132.

According to the scheme provided by the embodiment of the utility model, the opening of the hard disk handle bar can be regarded as the pre-action of hot plug of the target hard disk. When the detection device detects the pre-motion, a detection signal is generated. After receiving the detection signal, the trigger circuit generates a trigger signal. After receiving the processing trigger signal, the logic device generates a down signal. And after receiving the power-down signal, the controller powers down the hard disk slot of the target hard disk.

In the embodiment of the utility model, the target hard disk is powered down when the hard disk handle bar starts to be opened, so that the target hard disk is powered down when the action of pulling out the target hard disk is performed, and therefore, the hot plug cannot cause data loss and hard disk damage.

In the embodiment of the utility model, the hot plug is automatically completed by a hardware system. And powering down from opening the hard disk handle bar to the hard disk slot position of the target hard disk, wherein the whole process is automatically completed by the computing equipment. The time of the power-down processing of the hard disk by the computing equipment is in the millisecond level, so that after the hard disk handle bar is opened, the target hard disk can be pulled out without waiting time, and the operation is simple.

In one application scenario, as shown in FIG. 1, computing device 100 may be a server; such as a server of the X86 architecture; the type of the server is not limited herein, and may specifically be a complete machine cabinet server, a blade server, a high-density server, a rack server, or a cabinet server. In other words, the embodiment of the present utility model does not specifically limit the specific category of the server. Further, it is to be understood that the structure of the server shown in fig. 1 is not limiting of the structure of the server, and that the server may include more or less components than illustrated, or certain components may be combined, or different arrangements of components.

In other application scenarios, computing device 100 may also be other devices capable of processing computing work.

In an application scenario as shown in fig. 1, the server may comprise one or more hard disks. When the server can comprise a hard disk, the controller can directly power down the hard disk slot without distinguishing the hard disk. When the server can comprise a plurality of hard disks, the logic device needs to send the hard disk identification, and the controller powers down the hard disk slot corresponding to the hard disk identification.

In the embodiment of the utility model, the mode of sending the hard disk identifier by the logic device is not limited. The logic device may cause the downlink signal to include the identification of the hard disk, or integrate the identification of the hard disk and the downlink signal into a data packet, and send the data packet to the server. In one example, the logic device may also send the identification of the hard disk and the downlink signal to the server separately.

FIG. 2 is a schematic diagram of a computing device provided in an embodiment of the utility model. As shown in fig. 2, an embodiment of the present utility model provides a computing device 100 comprising: chassis 110, hard disk bracket 120, hard disk back plate 130, controller 140.

The chassis 110 has a hard disk slot, and the hard disk bracket 120 is inserted into the hard disk slot. The hard disk tray 120 carries a hard disk. The hard disk bracket 120 includes a hard disk handle bar 121 on which a detection device 122 is provided. Upon detecting that the hard disk handle bar 121 is opened, the detection device 122 outputs a detection signal.

The hard disk back plate 130 is provided with a trigger circuit 131 and a logic device 132, the trigger circuit 131 is electrically connected with the detection device 122, and the trigger circuit 131 is also electrically connected with the logic device 132. When the detection device 122 outputs the detection signal, the trigger circuit 131 generates a trigger signal and sends the trigger signal to the logic device 132. Upon receiving the trigger signal, the logic device 132 generates a down signal. The controller 140 is electrically connected to the logic device 132. When the controller 140 receives the power-down signal sent by the logic device 132, the controller 140 controls the hard disk slot to power down.

In the embodiment of the present utility model, the logic device 132 may be an existing logic circuit or device on the hard disk back plate, or may be a logic circuit or device that is separately added.

Fig. 3 is a schematic diagram of a detection device according to an embodiment of the present utility model. As shown in fig. 3, the target hard disk is fixed to the hard disk holder 120, and the hard disk handle bar 121 is also fixed to the hard disk holder 120. The hard disk handle bar 121 includes a button 121-2 and a handle bar 121-1.

In a scenario where the target hard disk is pulled out, the button 121-2 needs to be pushed slightly, and the handle bar 121-1 automatically pops out. Pulling the handle bar 121-1 drives the hard disk bracket 120 and the whole target hard disk to be pulled out from the slot of the server chassis.

In the scene of inserting the target hard disk, the handle bar 121-1 is in an open state. The whole hard disk bracket 120, the target hard disk, etc. are pushed into the hard disk slot of the server chassis 110 along the hard disk slideway. After the hard disk slot of the server chassis 110 is fully pushed in its entirety, the handle bar 121-1 is closed.

In the embodiment of the utility model, the type of the target hard disk is not limited. The target hard disk can be a mechanical hard disk, a solid state hard disk or a hybrid hard disk. The hybrid hard disk is a novel hard disk which is derived on the basis of a mechanical hard disk and a solid state hard disk. The interface types of the solid state disk include: serial ATA (SATA) interface, m.2 (PCI Express m.2specification, m.2) interface, U.2 (SFF-8639) interface, high-speed Serial computer expansion bus standard (peripheral component interconnect Express, PCIE) interface. The solid state disk of the m.2 interface mainly comprises: a solid state disk supporting a Serial ATA (SATA) transmission channel and employing an advanced host controller interface (Advanced Host Controller Interface, AHCI) standard protocol; solid state disk supporting PCIE transport channels and employing Non-volatile memory host controller interface specification (Non-Volatile Memory Express, NVME) standard protocols.

In one embodiment, the detection device 122 may be fixed to the hard disk cartridge 120 or the button 121-2. The detecting means 122 may detect whether the button 121-2 is pressed. When the button 121-2 is pressed, the detection device 122 generates a trigger signal.

Further, the detecting means 122 can determine whether the hard disk handle bar 121 is opened by detecting whether the button 121-2 is pressed. If the detecting means 122 detects that the button 121-2 is pressed, the detecting means 122 determines that the hard disk handle bar 121 is opened. If the detecting means 122 detects that the button 121-2 is not pressed, the detecting means 122 determines that the hard disk handle bar 121 is not opened, i.e., the hard disk handle bar 121 is in a closed state.

In another embodiment, the detection device 122 may be fixed to the hard disk holder 120 or the handle bar 121-1. The detecting means 122 can detect whether an opening motion of the handle bar 121-1 occurs. Further, the opening action refers to an action of the handle bar 121-1 from closing to flicking. When the handle bar 121-1 is opened, the detection device 122 generates a trigger signal.

Further, the detecting device 122 can determine whether the hard disk handle bar 121 is opened by detecting whether the handle bar 121-1 is sprung. If the detecting device 122 detects that the handle bar 121-1 is flicked, the detecting device 122 judges that the hard disk handle bar 121 is opened. If the detecting device 122 detects that the handle bar 121-1 is not sprung, the detecting device 122 determines that the hard disk handle bar 121 is not opened, i.e., the hard disk handle bar 121 is in a closed state.

In one embodiment, the detection device 122 may be an assembly that includes a sensor. And the sensor is used for detecting whether the hard disk handle bar is opened or not. Further, when the sensor detects that the button 121-2 is pressed, a detection signal is generated.

In one example, the sensor may be a resistive sensor. The resistive sensor converts a displacement, a pressure, etc. when the button 121-2 is pressed into a resistance value, thereby generating a voltage or a current, and the different voltage or current is a detection signal.

In another example, the sensor may also be a displacement sensor. The displacement sensor may convert the displacement of the button 121-2 into an electrical quantity. The electrical quantity is the detection signal.

In another example, the sensor may also be a pressure sensor. The pressure sensor may convert the pressure generated when the button 121-2 is pressed into an electric quantity. The electrical quantity is the detection signal.

Fig. 4 is a schematic diagram of a trigger circuit according to an embodiment of the present utility model. As shown in fig. 4, in one embodiment, the trigger circuit 131 includes a switching device Q1. When the detecting device 122 detects that the hard disk handle bar is opened, the switching device is turned on to generate a trigger signal.

In one example, as shown in fig. 4, a supply voltage (Volt Current Condenser, vcc) is connected to one end of a resistor R3. The other end of the resistor R3 is connected to one end of the resistor R1 and the input end of the switching device Q1, respectively. The logic device 132 is connected to the other end of the resistor R1. The control terminal of the switching device Q1 is connected to one terminal of the resistor R2 and one terminal of the capacitor C1, respectively. The other end of the resistor R2 is connected to the output V0 of the sensor of the detection device 122. The other end of the capacitor C1 is grounded. The output terminal of the switching device Q1 is grounded.

Further, the resistors R1, R2 and R3 can prevent the trigger circuit from being shorted and control the voltage or current. The output voltage of the output terminal V0 of the sensor is variable, and a voltage with a high peak value may occur, so that the capacitor C1 may avoid the damage to the switching device Q1 caused by the instantaneous high voltage.

In one embodiment, the switching device Q1 is a field effect transistor (Field Effect Transistor, FET). When the switching device Q1 is a field effect transistor, the input end of the switching device Q1 is the drain electrode of the field effect transistor, the control end of the switching device Q1 is the gate electrode of the field effect transistor, and the output end of the switching device Q1 is the source electrode of the field effect transistor.

Further, the field effect transistor may be a metal oxide semiconductor field effect transistor (Metal Oxide Semiconductor Field-Effect Transistor, MOSFET), a Junction FET (JFET), or the like.

As shown in fig. 4, the switching device Q1 is a P-MOS (P-channel MOS transistor), which is only schematic. Correspondingly, in the embodiment of the present utility model, the power supply voltage Vcc is a high voltage, and the voltage V0 at the output end of the sensor is a high voltage. That is, in other examples, such as when the switching device Q1 is an N-MOS (N-channel MOS transistor), the supply voltage Vcc will be a low voltage, and the voltage V0 at the sensor output will be a low voltage.

In other examples, switching device Q1 may also be a transistor. In this scenario, the signal at the output V0 of the sensor is a current signal. For example, when the current signal at the output terminal V0 of the sensor increases, the increased current signal turns on the transistor.

As shown in fig. 4, the switching device Q1 is an exemplary P-MOS. When the sensor does not detect that the hard disk handle bar 121 is open, or when the sensor detects that the hard disk handle bar 121 is closed, the output terminal V0 of the sensor of the detection device 122 is low. It is also understood that the output terminal V0 has no signal input to the control terminal of the switching device Q1. The low-level signal is input to the control terminal of the switching device Q1, so that the switching device Q1 is turned off or disconnected. When the switching device Q1 is turned off or disconnected, the voltage of the logic device 132 is a high voltage. Illustratively, as shown in FIG. 4, when the switching device Q1 is turned off or disconnected, the logic device 132 is connected to the supply voltage Vcc, i.e., the voltage of the logic device 132 is equal to the supply voltage Vcc. In one example, the supply voltage Vcc is 3V3.

In other examples, for example, switching device Q1 is an N-MOS. When the sensor does not detect that the hard disk handle bar 121 is open, or when the sensor detects that the hard disk handle bar 121 is closed, the output terminal V0 of the sensor of the detection device 122 is high. The high-level signal is input to the control terminal of the switching device Q1, so that the switching device Q1 is turned off or disconnected. When the switching device Q1 is turned off or disconnected, the voltage of the logic device 132 is low. Illustratively, as shown in FIG. 4, when the switching device Q1 is turned off or disconnected, the logic device 132 is connected to the supply voltage Vcc, i.e., the voltage of the logic device 132 is equal to the supply voltage Vcc. In one example, the supply voltage Vcc is-3V 3.

As shown in fig. 4, the switching device Q1 is an exemplary P-MOS. When the sensor detects that the hard disk handle bar 121 is open, the output terminal V0 of the sensor of the detecting device 122 is at a high level. It is also understood that the output terminal V0 has a control terminal of the signal input switching device Q1. The high-level signal is input to the control terminal of the switching device Q1, so that the switching device Q1 is turned on or short-circuited. When the switching device Q1 is turned on or short-circuited, the voltage of the logic device 132 becomes low, and the low voltage signal is a trigger signal. As shown in fig. 4, when the switching device Q1 is turned on or short-circuited, the logic device 132 changes the voltage to a low level due to the ground. The trigger signal may be a falling edge signal that changes from a high level to a low level.

In other examples, for example, switching device Q1 is an N-MOS. When the sensor detects that the hard disk handle bar 121 is open, the output terminal V0 of the sensor of the detecting device 122 is low level. The N-MOS is on. The voltage of the logic device 132 goes high and the high voltage signal is the trigger signal. The trigger signal may be a rising edge signal that changes from a low level to a high level.

Further, after receiving the trigger signal, the logic device 132 sends a downlink signal to the server through further compiling processing. In one example, the down signal may be a falling edge signal from a high level to a low level, or may be information on a change from a high level to a low level. And the server performs power-down processing on the target hard disk according to the power-down signal.

The position of the trigger circuit 131 is not limited. The trigger circuit 131 may be provided in one chip. The flip-flop circuit 131 and the logic device 132 share one chip, and are electrically connected to the logic device 132. Or the trigger circuit 131 is electrically connected to the logic device 132 independently of the chip of the logic device 132.

Further, logic 132 may be disposed on hard disk backplane 130. The logic device 132 may be a device independent of the hard disk backplate 130, such as a chip, and is mounted on a component of the server, such as the hard disk backplate 130, the motherboard 180, or the hard disk bracket 120, in a fixed manner, such as plugging, soldering, etc. Logic device 132 may be a logic device on hard disk backplane 130. For example, the hard disk backplane 130 has a complex programmable logic device (Complex Programmable Logic Device) for managing information of a plurality of hard disks. That is, existing CPLD circuits may implement the logic functions of logic device 132.

FIG. 5 is a schematic diagram of a computing device including a connector provided in an embodiment of the utility model. As shown in fig. 5, in one implementation, computing device 100 further includes: two connectors. The detection device 122 and the logic device 132 use these two connectors to enable a communication connection.

In another embodiment, the communication connection between the detection device 122 and the logic device 132 may also be implemented by a wireless connection, such as bluetooth technology, wireless network technology, etc.

In one application scenario, a computing device 100 may be considered as a retrofit to an existing server, enabling hot plug of a hard disk. Furthermore, the two connectors in the embodiment of the utility model can be understood as two connectors added on the existing server, and the function of hot plug of the hard disk can be realized without occupying the existing interface. Further, the computing device is not limited to the application scenario.

In one example, the two connectors may be a first connector 123, a second connector 133 as shown in fig. 5. The target hard disk is fixed to the hard disk holder 120, and the first connector 123 is provided on the hard disk holder 120. The first connector 123 is connected to the detecting device 122 by a cable. The second connector 133 is disposed on the hard disk back plate 130. The second connector 133 is electrically connected to the trigger circuit 131. The first connector 123 and the second connector 133 are connected by plugging.

In one example, the two connectors are two 2-PIN (PIN) connectors. Two ends of the 2PIN connector are respectively communicated with a power supply voltage Vcc and a ground GND.

Before the target hard disk is pulled out, the first connector 123 and the second connector 133 are connected in a plugging manner, and the detection device 122 and the logic device 132 can be connected in a communication manner by using the two connectors. Further, after the target hard disk is pulled out, the first connector 123 and the second connector 133 are disconnected, and the communication lines between the detection device 122 and the logic device 132 are disconnected.

After the target hard disk is inserted into the slot of the server chassis, the first connector 123 and the second connector 133 are connected in a plugging manner, so that the communication connection between the detection device 122 and the logic device 132 is realized.

In one embodiment, as shown in fig. 5, the chassis 110 is provided with a hard disk slot, and a hard disk is inserted into the hard disk slot. Based on the hard disk slot corresponding to the trigger signal, the logic device 132 may uniquely determine a target hard disk of the plurality of hard disks.

In one example, a hard disk slot is provided with a hard disk connector. The hard disk backplane 130 performs hard disk signal transmission through the hard disk connector. The detection device 122 is electrically connected to the hard disk connector of the hard disk slot. The hard disk connector of the hard disk slot is electrically connected to the logic device 132. The trigger signal sent by the detecting device 122 is transmitted to the logic device 132 after passing through the hard disk slot corresponding to the target hard disk.

Further, the second connector 133 may be disposed at a position of the hard disk slot of the hard disk back plate, and electrically connected to the hard disk connector of the hard disk slot.

When the computing device 100 includes multiple hard disks, such as a multi-disk hard disk, the multiple disk slots each carry a corresponding hard disk. Logic device 132 is electrically connected to the hard disk connector for each hard disk slot. The logic 132 may determine the corresponding hard disk slot based on the hard disk connector from which the trigger signal originated, and may further determine the corresponding hard disk. Thus, upon receiving the trigger signal, the logic device 132 can determine which of the plurality of hard disks is the target hard disk. In one example, the logic device 132 integrates the trigger signal and the identification of the target hard disk into a hard disk power down signal and sends the hard disk power down request information to the controller 140.

In one implementation, as shown in fig. 5, computing device 100 further includes a controller 140. After determining the target hard disk corresponding to the trigger signal, the logic device 132 sends the hard disk identifier of the target hard disk to the controller 140. Based on the received hard disk identification, the controller 140 can determine which hard disk to power down specifically, and thus power down. After receiving the power-down signal including the hard disk identifier of the target hard disk, the controller 140 performs a power-down operation on the target hard disk. After the controller 140 receives the power-down signal, a specific power-down operation process is not described herein.

In one example, the controller 140 may be a CPU. Accordingly, the CPU of the computing device 100 may directly receive the power-down signal and perform a specific power-down operation. The generation and transmission processes of the power-down request are reduced. Further, the CPU may be disposed on the motherboard 180 of the computing device 100.

In one example, the CPU is disposed on the motherboard. The main board is connected with the hard disk backboard 130 through an I2C serial bus for signal transmission. The logic device 132 performs signal transmission with the controller 140 or the CPU through the I2C serial bus.

In other examples, the controller 140 may be a processor. And after receiving the power-down signal, the processor processes the power-down signal and sends a power-down request to the CPU. The CPU performs specific power-down operations.

Further, the operating system may also process the downlink signal. That is, the computing device 100 also includes an operating system OS, or basic input output input system BIOS. The OS or BIOS of computing device 100 may receive the power down signal and compile. The OS or BIOS sends the compiled power-down request information to the CPU, and the CPU performs power-down processing on the target hard disk.

It should be noted that, in the process of hot plug of the computing device 100 to the target hard disk, the power-down process of the controller 140 is triggered by the action of opening the hard disk handle bar 121, and does not need the user to receive the operation OS or the BIOS trigger. Therefore, the hot plug of the hard disk of the computing device 100 is simple, the user can use the hard disk more simply and conveniently, and the user experience is improved.

Further, the power-down information sent by the logic device 132 includes an identification of the target hard disk. Based on the identification of the target hard disk, the controller 140 determines which hard disk to power down. Compared with the method that the user receives the operating OS or BIOS to conduct power-off control on the target hard disk, the method can avoid inconsistency between the power-off hard disk and the pulled hard disk caused by misoperation of the user.

In one example, taking a conventional command notification hot plug as an example, the hard disk that the user actually needs to plug is the hard disk of hard disk slot 1. However, when the user receives the OS or BIOS by hand, the hard disk slot inputted by the command is the hard disk slot 2. The misoperation of the user causes that the hard disk which needs to be plugged is inconsistent with the hard disk which is powered down by the OS or the BIOS. Therefore, the user pulls out the hard disk of the hard disk slot 1 which is not powered down, and simultaneously, the hard disk of the hard disk slot 2 is powered down by mistake, so that the hard disk slot 1 or the hard disk slot 2 is damaged or data is lost.

In another example, taking a conventional command notification hot plug as an example, the hard disk that the user needs to plug is the hard disk of hard disk slot 1. When the user receives the OS or BIOS, the hard disk slot inputted by the command is the hard disk slot 1. The user operates by mistake, and the actually plugged hard disk is the hard disk of the hard disk slot 2. The misoperation of the user causes the actually plugged hard disk to be inconsistent with the hard disk powered down by the OS or the BIOS. Therefore, the user pulls out the hard disk of the hard disk slot 1 which is not powered down, and simultaneously, the hard disk of the hard disk slot 2 is powered down by mistake, so that the hard disk slot 1 or the hard disk slot 2 is damaged or data is lost.

In the embodiment of the present utility model, the computing device 100 informs the system to power down the hard disk of the slot in advance by detecting the pre-action of the user operation. When the user needs to pull out the target hard disk, the hard disk handle bar 121 of the target hard disk is first operated, for example, a handle bar button is pressed. The detecting device 122 detects the action of the user operating the hard disk handle bar 121 to determine that the user has a pull-out requirement on the hard disk of the slot. The detection device 122 transmits a detection signal. After the detection signal passes through the trigger circuit 131, a trigger signal is output. The trigger signal passes through the logic device 132 to output a down signal. The controller 140 powers down the slot hard disk in advance based on the power down signal. Thus, the computing device 100 determines that a hard disk needs to be powered down by detecting the pre-action of the hot plug so that the actually plugged hard disk is consistent with the hard disk powered down by the server system. The computing device 100 can avoid inconsistent power-down hard disk and unplugged hard disk caused by misoperation of a user. Further, the computing device 100 may avoid hard disk damage or data loss.

In one application scenario, multiple hard disks may be hot swapped simultaneously. Logic 132 may determine the identity of the target hard disk based on the trigger signal. When multiple hard disks are simultaneously hot swapped, the logic device 132 receives multiple trigger signals simultaneously. The logic 132 determines the identity of the plurality of hard disks based on the plurality of trigger signals. Logic 132 sends the corresponding power-down signals and identification for the plurality of hard disks to computing device 100. The computing device 100 performs power-down processing on the plurality of hard disks simultaneously based on the power-down signals and the identifications corresponding to the plurality of hard disks.

In an application scenario, multiple hard disks may be hot swapped sequentially. Logic 132 may determine the identity of the target hard disk based on the trigger signal. When the plurality of hard disks are sequentially hot swapped, the logic device 132 sequentially receives the plurality of trigger signals. The logic 132 sequentially determines the identities of the plurality of hard disks based on the plurality of trigger signals. The logic device 132 sequentially transmits the power-down signals and the identifiers corresponding to the plurality of hard disks to the computing device 100. The computing device 100 performs power-down processing on the plurality of hard disks simultaneously in sequence based on the power-down signals and the identifiers corresponding to the plurality of hard disks.

The types, the number, the shapes, the installation modes, the structures and the like of the components of the computing equipment provided by the embodiment of the utility model are not limited to the embodiment, and all the technical schemes realized under the principle of the utility model are within the protection scope of the scheme. Any one or more embodiments or illustrations in the specification, combined in a suitable manner, are within the scope of the present disclosure.

Finally, the above embodiments are only used to illustrate the technical solution of the present utility model. It will be appreciated by those skilled in the art that, although the utility model has been described in detail with reference to the foregoing embodiments, various modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions in the various embodiments of the utility model.

Claims (10)

1. A computing device, comprising:

the case is provided with a hard disk slot;

the hard disk bracket is inserted into the hard disk slot and used for bearing a hard disk, and comprises a hard disk handle bar; the hard disk handle bar is provided with a detection device, and the detection device is used for outputting a detection signal when detecting that the hard disk handle bar is opened;

the device comprises a hard disk backboard, a detection device and a logic device, wherein the hard disk backboard is provided with a trigger circuit and the logic device, the trigger circuit is electrically connected with the detection device and the logic device, and the trigger circuit is used for generating a trigger signal and sending the trigger signal to the logic device when the detection device outputs a detection signal; the logic device is used for generating a lower electric signal when receiving the trigger signal;

and the controller is electrically connected with the logic device, and when the controller receives the power-down signal sent by the logic device, the controller controls the hard disk slot to be powered down.

2. The computing device of claim 1, wherein the hard disk handle bar comprises a button; the detection device outputs the detection signal when detecting that the button is pressed.

3. The computing device of claim 2, wherein the detection means comprises a sensor; the sensor is electrically connected with the trigger circuit; the sensor outputs the detection signal when detecting the button press.

4. A computing device according to any one of claims 1-3, wherein the hard disk carrier is provided with a first connector, the first connector being electrically connected with the detection means; the hard disk backboard is provided with a second connector which is electrically connected with the trigger circuit; the first connector is used for being connected with the second connector in a plugging mode when the hard disk bracket is plugged into the hard disk slot.

5. The computing device of any of claims 1-4, wherein the trigger circuit comprises a switching device, a control terminal of the switching device being electrically connected to the detection device, an input terminal of the switching device being electrically connected to the logic device; and the switching device is used for generating the trigger signal by conducting when the detection device outputs the detection signal, and transmitting the trigger signal to the logic device.

6. The computing device of claim 5, wherein the trigger circuit further comprises a first resistor and a second resistor;

the first resistor is positioned between the logic device and the input end of the switching device and is used for changing the voltage of the logic device when the switching device outputs a trigger signal;

the second resistor is positioned between the detection device and the control end of the switching device and is used for changing the voltage of the control end of the switching device when the detection device outputs a detection signal.

7. The computing device of claim 5 or 6, wherein the trigger circuit further comprises a third resistor, one end of the third resistor is electrically connected to a supply voltage, and the other end of the third resistor is electrically connected to the input terminal of the switching device and the logic device, respectively; the third resistor is used for providing the power supply voltage for the logic device when the switching device is turned off.

8. The computing device of any of claims 5-7, wherein the trigger circuit further comprises a first capacitance; one end of the first capacitor is connected with the control ends of the detection device and the switching device respectively; the first capacitor is used for filtering the detection signal when the detection device outputs the detection signal.

9. The computing device of any of claims 5-8, wherein the switching device is a field effect transistor; the control end of the switching device is the grid electrode of the field effect transistor, and the input end of the switching device is the drain electrode of the field effect transistor.

10. The computing device of any of claims 1-9, wherein the logic device is a complex programmable logic device electrically connected to both the trigger circuit and the controller, the complex programmable logic device to generate a down signal upon receipt of the trigger signal.