Storage system and power supply method for storage system

Abstract

The present application relates to a storage system and a power supply method for the storage system. The storage system includes a power supply device, multiple hard disks, and multiple connection control devices. Each connection control device is electrically connected to a power supply interface and a feedback interface of the power supply device, respectively, and the connection control device is also electrically connected to a hard disk. The power supply device is used to adjust the power supply voltage of the power supply interface according to the voltage of the feedback interface, and to supply power to the hard disk connected to the connection control device through the connection control device. The connection control device is used to disconnect from the feedback interface when a fault is detected in the connected hard disk. The use of this method can improve the working stability of the storage system.

Description

Technical Field

[0001] The present application relates to the technical field of computer hard disks, and in particular to a storage system and a power supply method for the storage system. Background Art

[0002] With the rapid development of computer computing power, servers require larger storage capacities. To ensure data stability and security, most servers and workstations back up and store data, requiring more hard drives to store data. To avoid the time loss associated with addressing, reading, and writing data to a single hard drive, improve computing speed, and address data loss caused by a single hard drive failure, server manufacturers are combining multiple hard drives to build storage systems. This achieves faster read and write speeds and greater reliability than a single hard drive. Therefore, the power supply stability of storage systems built with multiple hard drives becomes increasingly important.

[0003] In related technologies, to ensure the normal operation of server hard drives based on a reference voltage, the hard drive's operating voltage is monitored. Currently, a multi-point voltage feedback monitoring method is used to monitor the operating voltage of each hard drive in a storage system. Specifically, a voltage sampling point is set on the printed circuit board (PCB) where the power supply interface of each hard drive in the storage system is located. The hard drive's operating voltage is fed back to the power supply device through a feedback loop. The power supply device compares the hard drive's operating voltage with the reference voltage and controls the output voltage to keep the hard drive's operating voltage roughly equal to the reference voltage.

[0004] Although the above-mentioned working voltage monitoring method can enable the power supply device to accurately determine the working voltage of each hard disk in the storage system, since one power supply device supplies power to multiple hard disks, if one of the hard disks fails, the failed hard disk will feedback an abnormal working voltage to the power supply device. The power supply device will control the output voltage based on the feedback abnormal working voltage, causing the working voltage of other normal hard disks to deviate significantly from the reference voltage, resulting in the instability of the entire storage system. Summary of the Invention

[0005] Based on this, it is necessary to provide a storage system and a power supply method for the storage system that can ensure the working stability of the storage system in order to address the above technical problems.

[0006] In a first aspect, the present application provides a system. The storage system includes a power supply device, multiple hard disks, and multiple connection control devices; each of the connection control devices is electrically connected to a power supply interface and a feedback interface of the power supply device, and the connection control device is also electrically connected to one of the hard disks; wherein:

[0007] The power supply device is used to adjust the supply voltage of the power supply interface according to the voltage of the feedback interface, and supply power to the hard disk connected to the connection control device through the connection control device;

[0008] The connection control device is used to disconnect the feedback interface when it is detected that the connected hard disk fails.

[0009] The connection control device is connected to the power supply device and the hardware respectively. While the power supply device monitors the working voltage of each hardware normally through the feedback interface, when the hard disk fails, the connection between the failed hard disk and the feedback interface of the power supply device can be disconnected in time, so that the failed hard disk will not affect the output voltage of the power supply device, reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0010] In one embodiment, the connection control device includes an overcurrent protection module and a switch module; the overcurrent protection module is electrically connected to the hard disk, the power supply interface of the power supply device, and the switch module, and the switch module is electrically connected to the feedback interface of the power supply device; wherein:

[0011] The overcurrent protection module is configured to disconnect the overcurrent protection module from the hard disk when a transmission failure of the connected hard disk is detected, and send a power-off signal to the switch module to disconnect the switch module from the feedback interface;

[0012] The switch module is used to disconnect the feedback interface of the power supply device according to the power-off signal sent by the overcurrent protection module.

[0013] The overcurrent protection module in the connection control device controls the connection between the power supply device and the hard disk, and controls the operation of the switch module. The switch module determines whether to disconnect the connection with the feedback interface of the power supply device according to the control of the overcurrent protection module. After the overcurrent protection module detects that the hard disk has failed, it can control the switch module to disconnect the connection between the failed hard disk and the feedback interface of the power supply device, so that the failed hard disk will not affect the output voltage of the power supply device, thereby reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0014] In one embodiment, the power status interface of the overcurrent protection module is connected to the enable interface of the switch module;

[0015] The overcurrent protection module is configured to disconnect the overcurrent protection module from the hard disk and control the power state interface to be in a closed state when a transmission failure of the connected hard disk is detected;

[0016] The switch module is used to disconnect the feedback interface of the power supply device when it is detected that the power status interface is in the off state.

[0017] The power status interface of the overcurrent protection module in the control device is connected to the enable interface of the switch module. When the overcurrent protection module is turned off, the enable interface of the switch module no longer receives the enable signal. Therefore, after the overcurrent protection module detects that the hard disk has failed, it controls the power status interface to be closed. After the enable interface of the switch module has no enable signal, the switch module fails and disconnects the feedback interface of the power supply device. Therefore, the faulty hard disk will not affect the output voltage of the power supply device, reducing the impact of the faulty monitoring hard disk on the working stability of the entire storage system.

[0018] In one embodiment, the connection control device is further configured to:

[0019] When it is detected that the connected hard disk is in a non-working state, the connection with the connected hard disk is disconnected.

[0020] The connection control device disconnects the hard disk in the non-working state, so the power supply device no longer provides power to the disconnected hard disk, reducing the power consumption of the hard disk in the non-working state.

[0021] In one embodiment, the connection control device is further configured to:

[0022] When it is detected that the hard disk is connected to the connection control device, the duration of outputting voltage to the connected hard disk for the first time is adjusted according to a preset voltage rise duration control strategy.

[0023] When the hard disk is inserted into the storage system, the connection control device controls the duration of the voltage output to the hard disk, thereby reducing the impact of the instantaneous voltage rise caused by the surge when the hard disk is inserted into the storage system on the working stability of the entire storage system.

[0024] In a second aspect, the present application further provides a method for powering a storage system. The method is applied to any of the above-described storage systems; the method comprises:

[0025] The connection control device detects whether a failure occurs in the connected hard disk;

[0026] The connection control device disconnects the feedback interface of the power supply device when detecting that the connected hard disk fails.

[0027] The connection control device is connected to the power supply device and the hardware respectively. While the power supply device monitors the working voltage of each hardware normally through the feedback interface, when the hard disk fails, the connection between the failed hard disk and the feedback interface of the power supply device can be disconnected in time, so that the failed hard disk will not affect the output voltage of the power supply device, reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0028] In one embodiment, the method further comprises:

[0029] When the overcurrent protection module detects a transmission failure of the connected hard disk, the overcurrent protection module disconnects the overcurrent protection module from the hard disk and sends a power-off signal to the switch module, so that the switch module disconnects the electrical connection with the feedback interface;

[0030] The switch module disconnects the feedback interface of the power supply device according to the power-off signal sent by the overcurrent protection module.

[0031] The overcurrent protection module in the connection control device controls the connection between the power supply device and the hard disk, and controls the operation of the switch module. The switch module determines whether to disconnect the connection with the feedback interface of the power supply device according to the control of the overcurrent protection module. After the overcurrent protection module detects that the hard disk has failed, it can control the switch module to disconnect the connection between the failed hard disk and the feedback interface of the power supply device, so that the failed hard disk will not affect the output voltage of the power supply device, thereby reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0032] In one embodiment, the method further comprises:

[0033] When the overcurrent protection module detects that a failure has occurred in the connected hard disk, it disconnects the connected hard disk and controls the power state interface to be in a closed state;

[0034] When determining that the power state interface is in the off state, the switch module disconnects the feedback interface of the power supply device.

[0035] The power status interface of the overcurrent protection module in the control device is connected to the enable interface of the switch module. When the overcurrent protection module is turned off, the enable interface of the switch module no longer receives the enable signal. Therefore, after the overcurrent protection module detects that the hard disk has failed, it controls the power status interface to be closed. After the enable interface of the switch module has no enable signal, the switch module fails and disconnects the feedback interface of the power supply device. Therefore, the faulty hard disk will not affect the output voltage of the power supply device, reducing the impact of the faulty monitoring hard disk on the working stability of the entire storage system.

[0036] In one embodiment, the method further comprises:

[0037] The connection control device disconnects the connected hard disk when detecting that the connected hard disk is in a non-working state.

[0038] The connection control device disconnects the hard disk in the non-working state, so the power supply device no longer provides power to the disconnected hard disk, reducing the power consumption of the hard disk in the non-working state.

[0039] In one embodiment, the method further comprises:

[0040] When detecting that the hard disk is connected to the connection control device, the connection control device adjusts the duration of outputting voltage to the connected hard disk for the first time according to a preset voltage rise duration control strategy.

[0041] When the hard disk is inserted into the storage system, the connection control device controls the duration of the voltage output to the hard disk, thereby reducing the impact of the instantaneous voltage rise caused by the surge when the hard disk is inserted into the storage system on the working stability of the entire storage system.

[0042] In the above storage system, the connection control device is connected to the power supply device and the hardware respectively. While the power supply device monitors the working voltage of each hardware normally through the feedback interface, when the hard disk fails, the connection between the failed hard disk and the feedback interface of the power supply device can be disconnected in time, so that the failed hard disk will not affect the output voltage of the power supply device, thereby reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a schematic structural diagram of a storage system in one embodiment;

[0044] Figure 2 A schematic structural diagram of a storage system in another embodiment;

[0045] Figure 3 is a structural diagram of a storage system in yet another embodiment;

[0046] Figure 4 FIG. 4 is a flow chart of a method for powering a storage system in another embodiment. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0048] In related technologies, storage systems generally set working voltage detection points near each hard disk, and the feedback interface of the power supply device is connected to these working voltage detection points. According to the working voltage of each hard disk received by the feedback interface, the power supply voltage output by the power supply interface is adjusted, so that the difference between the working voltage of each hard disk and the reference voltage is within a preset range.

[0049] Although the above-mentioned working voltage monitoring method can enable the power supply device to accurately determine the working voltage of each hard disk in the storage system, since one power supply device supplies power to multiple hard disks, if one of the hard disks fails, the failed hard disk will feedback an abnormal working voltage to the power supply device. The power supply device will control the output voltage based on the feedback abnormal working voltage, causing the working voltage of other normal hard disks to deviate significantly from the reference voltage, resulting in the instability of the entire storage system.

[0050] Based on this, the present application proposes a storage system comprising a power supply device, multiple hard disks, and multiple connection control devices. Each connection control device is electrically connected to a power supply interface and a feedback interface of the power supply device, respectively, and the connection control device is also electrically connected to a hard disk. The power supply device is configured to adjust the supply voltage of the power supply interface according to the voltage of the feedback interface, and to supply power to the hard disk connected to the connection control device through the connection control device. The connection control device is configured to disconnect the feedback interface if a fault is detected in the connected hard disk.

[0051] In the storage system provided in the present application, the connection control device is respectively connected to the power supply device and the hardware. While the power supply device normally monitors the working voltage of each hardware through the feedback interface, when a hard disk fails, the connection between the failed hard disk and the feedback interface of the power supply device can be disconnected in time, so that the failed hard disk will not affect the output voltage of the power supply device, thereby reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0052] Next, the storage system and the corresponding connection control method provided by this application are described in detail.

[0053] like Figure 1 The figure shows a schematic diagram of the storage system structure shown in this application, which includes a power supply device, multiple hard disks, and multiple connection control devices. Each connection control device is electrically connected to the power supply interface and feedback interface of the power supply device. The connection control device is also electrically connected to the hard disk, and there is a one-to-one correspondence between the connection control device and the hard disk.

[0054] The operating voltage of the hard disk should not be too high or too low. If the operating voltage is too high, the hard disk may be damaged; if the operating voltage is too low, the hard disk will be at risk of power failure and data loss. Therefore, the operating voltage of the hard disk needs to be close to the reference voltage to work properly. For example, if the reference voltage is 5V, the operating voltage of the hard disk needs to be between [4.95V, 5.05V] to work properly.

[0055] The power supply device includes two interfaces: the power supply interface and the feedback interface. The power supply interface is used to output voltage to enable each hard disk to work. The feedback interface is used to monitor the working voltage of each hard disk.

[0056] The power supply device supplies power to the hard disk connected to the connection control device via the connection control device. If the power supply device is disconnected from the connection control device, the power supply device cannot provide power to the hard disk connected to the connection control device. The power supply device determines the current operating voltage of each hard disk based on the voltage of the feedback interface, then compares the operating voltage of each hard disk with the hard disk's reference voltage to determine whether the difference between the operating voltage of each hard disk and the hard disk's reference voltage is within a preset range, such as between [-0.1V, 0.1V]. If the difference is within the preset range, it indicates that the operating voltage of each hard disk is sufficient to enable normal operation of each hard disk, and there is no risk of damage to the hard disk or power outage. If the difference between the operating voltage of each hard disk and the hard disk's reference voltage is not within the preset range, it indicates that the operating voltage of each hard disk is too high or too low, and there is a risk of hard disk damage and power outage. The power supply device adjusts the supply voltage output by the power supply interface according to a preset supply voltage adjustment strategy, wherein the difference between the operating voltage of each hard disk and the reference voltage is inversely proportional to the output voltage.

[0057] The connection control device is connected to the power supply interface and feedback interface of the power supply device, respectively. When the hard disk is not faulty, the connection control device and the hard disk are normally connected, and the hard disk can operate normally based on the power transmitted by the connection control device. When a hard disk fails, the hard disk will short-circuit or overcurrent will occur. The overcurrent will cause the hard disk's operating voltage to increase, and the short circuit will cause the operating voltage to decrease, causing the hard disk to operate at an abnormal operating voltage. When the connection control device detects that the operating voltage of the connected hard disk has risen to the upper voltage limit or dropped to the lower voltage limit, it determines that the connected hard disk has failed and disconnects from the feedback interface of the power supply device. This prevents the feedback interface of the power supply device from receiving the operating voltage of the faulty hard disk, and therefore does not adjust the supply voltage output by the power supply interface according to the abnormal operating voltage, preventing the entire storage system from losing stability.

[0058] It should be noted that there are other necessary components of the circuit board between the power supply device and the connecting device, so that the voltage of the power supply interface is not consistent with the voltage of the power input port of the connection control device. The internal resistance of the connection control device is low, so the power input port of the connection control device is basically consistent with the output port of the connection control device (the interface connected to the hard disk). Therefore, the voltage of the power input port of the connection control device can reflect the working voltage of the hard disk.

[0059] In this embodiment, the connection control device is respectively connected to the power supply device and the hardware. While the power supply device normally monitors the working voltage of each hardware through the feedback interface, when a hard disk fails, the connection between the failed hard disk and the feedback interface of the power supply device can be disconnected in time, so that the failed hard disk will not affect the output voltage of the power supply device, thereby reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0060] like Figure 2 FIG2 is a schematic diagram of another storage system according to the present application, comprising a power supply device, multiple hard disks, and multiple connection control devices. Each connection control device comprises an overcurrent protection module and a switch module. The overcurrent protection module is electrically connected to the hard disk, the overcurrent protection module is electrically connected to the power supply interface of the power supply device, the overcurrent protection module is electrically connected to the switch module, and the switch module is electrically connected to the feedback interface of the power supply device. There is a one-to-one correspondence between the connection control device and the hard disk.

[0061] The power supply device can be found in Figure 1 The description of the power supply device in is not repeated in detail here.

[0062] The overcurrent protection module is used to monitor whether the connected hard disk has failed. If it detects that the connected hard disk is overcurrent or short-circuited, the overcurrent protection module will automatically disconnect from the connected hard disk and send a power-off signal to the switch module to disconnect the switch module from the electrical connection with the feedback interface.

[0063] The switch module controls the connection between the hard drive's corresponding operating voltage detection point and the power supply's feedback interface. When the switch module doesn't receive a power-off signal from the overcurrent protection module, it operates normally, maintaining the connection between the operating voltage detection point and the power supply's feedback interface, allowing the power supply to monitor the hard drive's operating voltage normally. Upon receiving a power-off signal from the overcurrent protection module, the switch module ceases operation, disconnecting the operating voltage detection point from the power supply's feedback interface. The power supply's feedback interface no longer receives the faulty hard drive's operating voltage, and therefore does not adjust the power supply interface's output voltage based on the abnormal operating voltage, preventing the entire storage system from losing stability.

[0064] In this embodiment, the overcurrent protection module in the connection control device controls the connection between the power supply device and the hard disk, and controls the operation of the switch module. The switch module determines whether to disconnect the connection with the feedback interface of the power supply device according to the control of the overcurrent protection module. After the overcurrent protection module detects that the hard disk has failed, it can control the switch module to disconnect the connection between the failed hard disk and the feedback interface of the power supply device, so that the failed hard disk will not affect the output voltage of the power supply device, thereby reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0065] like Figure 3 As shown, it is another storage system schematic diagram shown in the present application, including a power supply device, multiple hard disks and multiple connection control devices. Each connection control device includes an overcurrent protection module and a switch module. The overcurrent protection module is electrically connected to the hard disk, the overcurrent protection module is electrically connected to the power supply interface of the power supply device, the overcurrent protection module is electrically connected to the switch module, and the switch module is electrically connected to the feedback interface of the power supply device. There is a one-to-one correspondence between the connection control device and the hard disk. The overcurrent protection module includes a power status interface, the switch module includes an enable interface, and the power status interface of the overcurrent protection module is electrically connected to the enable interface of the switch module.

[0066] The switch module operates normally when voltage is present at the enable interface, that is, when the power status interface connected to the enable interface is in the on state. The switch module also includes a power inlet and a power outlet. The voltage at the operating voltage detection point is input via the power inlet and output via the power outlet to the feedback interface of the power supply device.

[0067] The overcurrent protection module includes a power status interface for controlling the on / off state of the switch module. When the overcurrent protection module is conducting, the power status interface is in the on state; when the overcurrent protection module is not conducting, the power status interface is in the off state. The overcurrent protection module also includes a power inlet and a power outlet. The voltage at the operating voltage detection point is input through the power inlet and output to the hard drive through the power outlet.

[0068] The power supply device provides power to the overcurrent protection module. When the hard disk is not inserted, the overcurrent protection module is not conductive inside, the power status interface of the overcurrent protection module is in the off state, the enable interface of the switch module has no voltage, the switch module is not conductive, and the working voltage detection point is invalid.

[0069] When the hard disk is inserted, the overcurrent protection module is turned on. After the overcurrent protection module is turned on, the power status interface of the overcurrent protection module is in the on state, the enable interface of the switch module has voltage, and the switch module is turned on. At this time, the power supply device can obtain the working voltage of the hard disk normally through the feedback interface.

[0070] When the hard disk is unplugged, the overcurrent protection module is not conductive inside, the power status interface of the overcurrent protection module is in the off state, the enable interface of the switch module has no voltage, the switch module is not conductive, and the working voltage detection point is invalid.

[0071] If a hard drive is short-circuited or overcurrent occurs, the hard drive fails, and the overcurrent protection module will perform its protection function to isolate the hard drive from the input end. The overcurrent protection module will not be conductive inside, the power status interface of the overcurrent protection module will be in the off state, the enable interface of the switch module will have no voltage, the switch module will not be conductive, and the working voltage detection point will be invalid. Therefore, it will not affect the power supply device to the remaining hard drives.

[0072] The power status interface of the overcurrent protection module in the control device is connected to the enable interface of the switch module. When the overcurrent protection module is turned off, the enable interface of the switch module no longer receives the enable signal. Therefore, after the overcurrent protection module detects that the hard disk has failed, it controls the power status interface to be closed. After the enable interface of the switch module has no enable signal, the switch module fails and disconnects the feedback interface of the power supply device. Therefore, the faulty hard disk will not affect the output voltage of the power supply device, reducing the impact of the faulty monitoring hard disk on the working stability of the entire storage system.

[0073] In one embodiment, Figure 1 The connection control device shown is also used to disconnect the connected hard disk when it is detected that the connected hard disk is in a non-working state.

[0074] Specifically, the hard disk in the storage system is not always in working state. If the hard disk is in working state, the working current of the hard disk will be higher than the preset current threshold. If the hard disk is in non-working state, the working current of the hard disk will be lower than the preset current threshold. Therefore, the connection control device in the storage system can detect the working current of the connected hard disk. If the working current of the hard disk is higher than the preset current threshold, the connection control device determines that the hard disk is in working state and continues to supply power to the hard disk normally. If the connection control device detects that the working current of the hard disk is still lower than the preset current threshold after a preset period of time, the connection control device determines that the hard disk is in non-working state. Since the power supply device supplies power to the hard disk connected to the connection control device through the connection control device, the connection control device can control whether to supply power to the hard disk. After the connection control device determines that the hard disk is in non-working state, it disconnects the connection with the hard disk and completes the power-off process of the hard disk that is in place and temporarily not working, thereby effectively limiting leakage current and reducing the power consumption of the multi-hard disk storage.

[0075] In this embodiment, the connection control device disconnects the hard disk in the non-working state, so the power supply device no longer provides power to the disconnected hard disk, reducing the power consumption of the hard disk in the non-working state.

[0076] In one embodiment, Figure 1 The connection control device shown is also used to adjust the duration of the first voltage output to the connected hard disk according to a preset voltage rise duration control strategy when it is detected that the hard disk is connected to the connection control device.

[0077] Specifically, when a hard disk is inserted into the storage system, there may be a certain surge current, because the power supply device is still supplying power to other inserted hard disks at this time. The generation of the surge will cause the output voltage of the power supply device to have a transient rise in voltage, which may affect the power supply stability of other inserted hard disks. Therefore, when the connection control device detects that the hard disk is connected to the connection control device, that is, the port connected to the connection control device and the hard disk changes from voltage suspension to current conduction, it is determined that a hard disk is inserted into the connection control device. At this time, in order to avoid storage system instability caused by surge current when the hard disk is inserted, the connection control device adjusts the duration of the first voltage output to the connected hard disk according to a preset voltage rise time control strategy, such as a voltage rise strategy with a slope of a certain value, in which the voltage rise time is determined by the slope, or a sinusoidal voltage rise strategy, in which the voltage rise time is determined by a sinusoidal parameter, so that the voltage supplied by the power supply device to the hard disk rises slowly until it rises to the preset supply voltage. Among them, the surge current is proportional to the capacitance of the hard disk, and inversely proportional to the rise time. In the voltage rise time control strategy, the longer the voltage rise time is, the smaller the surge current is, and thus the smaller the impact is; in the voltage rise time control strategy, the shorter the voltage rise time is, the larger the surge current is, and thus the greater the impact is.

[0078] In this embodiment, the connection control device controls the duration of voltage output to the hard disk when the hard disk is inserted into the storage system, thereby reducing the impact of the instantaneous voltage rise caused by the surge when the hard disk is inserted into the storage system on the working stability of the entire storage system.

[0079] In one embodiment, the overcurrent protection module and the switch module can be implemented by a load chip (LodeSwitch chip). For the description of the load chip, please refer to the description in the relevant technology, which will not be described in detail here.

[0080] Next, the power supply method for the storage system proposed in this application is described in detail.

[0081] In one embodiment, a power supply method for a storage system is provided, wherein the method is applied to Figure 1 The storage system shown in the figure is used as an example. Figure 4 As shown, the method includes the following steps:

[0082] Step 401: The connection control device detects whether a connected hard disk fails.

[0083] Step 403: When the connection control device detects that the connected hard disk fails, it disconnects the feedback interface of the power supply device.

[0084] The power supply device compares the operating voltage of each hard disk received by the feedback interface with the hard disk's reference voltage to determine whether the difference between the operating voltage of each hard disk and the hard disk's reference voltage is within a preset range, such as if the difference is between [-0.1V, 0.1V]. If it is within the preset range, it indicates that the operating voltage of each hard disk is sufficient to enable the hard disk to operate normally, and there is no risk of damage to the hard disk or power outage. If the difference between the operating voltage of each hard disk and the hard disk's reference voltage is not within the preset range, it indicates that the operating voltage of each hard disk is too high or too low, and there may be a risk of hard disk damage and power outage. The power supply device adjusts the supply voltage output by the power supply interface according to a preset supply voltage adjustment strategy, wherein the difference between the operating voltage of each hard disk and the reference voltage is inversely proportional to the output voltage.

[0085] Specifically, the connection control device periodically detects whether the connected hard disk has a fault, that is, whether the connected hard disk has a short circuit or overcurrent, that is, whether the operating voltage of the connected hard disk has risen to the upper voltage limit or dropped to the lower voltage limit. If it is detected that the operating voltage of the connected hard disk has not risen to the upper voltage limit and has not dropped to the lower voltage limit, it is determined that the hard disk has not failed and power can be supplied to the hard disk normally. If the connection control device detects that the connected hard disk has a fault, that is, detects that the operating voltage of the connected hard disk has not risen to the upper voltage limit or has dropped to the lower voltage limit, the connection control device disconnects the connected hard disk and disconnects the feedback interface of the power supply device.

[0086] On the one hand, the disconnection control device disconnects the connected hard disk, preventing the faulty hard disk from affecting the power supply interface of the power supply device, thereby isolating the faulty hard disk from the power supply device. On the other hand, the disconnection control device disconnects the feedback interface of the power supply device, preventing the feedback interface from receiving the operating voltage of the faulty hard disk. Therefore, the power supply voltage output by the power supply interface is not adjusted according to the abnormal operating voltage, preventing the entire storage system from losing stability.

[0087] In one embodiment, a power supply method for a storage system is provided. Figure 2 The storage system shown.

[0088] The steps performed by the power supply device can be referred to Figure 1 The power supply method of the corresponding storage system is not described in detail here.

[0089] When the overcurrent protection module in the connection control device detects that a fault occurs in the connected hard disk, it disconnects the connected hard disk and controls the switch module to disconnect the electrical connection with the power supply device.

[0090] The switch module in the connection control device disconnects the power supply interface of the power supply device according to the control of the overcurrent protection module.

[0091] Specifically, the overcurrent protection module monitors whether the connected hard disk has failed. If it detects that the connected hard disk is overcurrent or short-circuited, the overcurrent protection module will automatically disconnect from the connected hard disk and send a power-off signal to the connected switch module to cause the switch module to disconnect from the feedback interface. When the switch module does not receive the power-off signal from the overcurrent protection module, the switch module operates normally, maintains the connection between the working voltage detection point and the feedback interface of the power supply device, and the power supply device can monitor the working voltage of the hard disk normally. After the switch module receives the power-off signal from the overcurrent protection module, the switch module stops working and disconnects the connection between the working voltage detection point and the feedback interface of the power supply device. The feedback interface of the power supply device no longer receives the working voltage of the faulty hard disk, and therefore will not adjust the power supply voltage output by the power supply interface according to the abnormal working voltage, and will not cause the entire storage system to lose stability.

[0092] In this embodiment, the overcurrent protection module in the connection control device controls the connection between the power supply device and the hard disk, and controls the operation of the switch module. The switch module determines whether to disconnect the connection with the feedback interface of the power supply device according to the control of the overcurrent protection module. After the overcurrent protection module detects that the hard disk has failed, it can control the switch module to disconnect the connection between the failed hard disk and the feedback interface of the power supply device, so that the failed hard disk will not affect the output voltage of the power supply device, thereby reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0093] In one embodiment, a power supply method for a storage system is provided. Figure 3 The storage system shown.

[0094] The steps performed by the power supply device can be referred to Figure 1 The corresponding connection control method will not be described in detail here.

[0095] When the overcurrent protection module in the connection control device detects that a failure occurs in the connected hard disk, it disconnects the connected hard disk and controls the power state interface to be in a closed state.

[0096] When determining that the power state interface is in the off state, the switch module in the connection control device disconnects the power supply interface of the power supply device.

[0097] The power supply device provides power to the overcurrent protection module. When the hard disk is not inserted, the overcurrent protection module is not conductive inside, the power status interface of the overcurrent protection module is in the off state, the enable interface of the switch module has no voltage, the switch module is not conductive, and the working voltage detection point is invalid.

[0098] When the hard disk is inserted, the overcurrent protection module is turned on. After the overcurrent protection module is turned on, the power status interface of the overcurrent protection module is in the on state, the enable interface of the switch module has voltage, and the switch module is turned on. At this time, the power supply device can obtain the working voltage of the hard disk normally through the feedback interface.

[0099] When the hard disk is unplugged, the overcurrent protection module is not conductive inside, the power status interface of the overcurrent protection module is in the off state, the enable interface of the switch module has no voltage, the switch module is not conductive, and the working voltage detection point is invalid.

[0100] If a hard drive is short-circuited or overcurrent occurs, the hard drive fails, and the overcurrent protection module will perform its protection function to isolate the hard drive from the input end. The overcurrent protection module will not be conductive inside, the power status interface of the overcurrent protection module will be in the off state, the enable interface of the switch module will have no voltage, the switch module will not be conductive, and the working voltage detection point will be invalid. Therefore, it will not affect the power supply device to the remaining hard drives.

[0101] In this embodiment, the power status interface of the overcurrent protection module in the control device is connected to the enable interface of the switch module. When the overcurrent protection module is turned off, the enable interface of the switch module no longer receives the enable signal. Therefore, after the overcurrent protection module detects that the hard disk has failed, it controls the power status interface to be closed. After the enable interface of the switch module has no enable signal, the switch module fails and disconnects the feedback interface of the power supply device. Therefore, the failed hard disk will not affect the output voltage of the power supply device, reducing the impact of the failed monitoring hard disk on the working stability of the entire storage system.

[0102] In one embodiment, the power supply method for the storage system further includes:

[0103] The connection control device further disconnects the connected hard disk when detecting that the connected hard disk is in a non-working state.

[0104] Specifically, the hard disk in the storage system is not always in working state. If the hard disk is in working state, the working current of the hard disk will be higher than the preset current threshold. If the hard disk is in non-working state, the working current of the hard disk will be lower than the preset current threshold. Therefore, the connection control device in the storage system can detect the working current of the connected hard disk. If the working current of the hard disk is higher than the preset current threshold, the connection control device determines that the hard disk is in working state and continues to supply power to the hard disk normally. If the connection control device detects that the working current of the hard disk is still lower than the preset current threshold after a preset period of time, the connection control device determines that the hard disk is in non-working state. Since the power supply device supplies power to the hard disk connected to the connection control device through the connection control device, the connection control device can control whether to supply power to the hard disk. After the connection control device determines that the hard disk is in non-working state, it disconnects the connection with the hard disk and completes the power-off process of the hard disk that is in place and temporarily not working, thereby effectively limiting leakage current and reducing the power consumption of the multi-hard disk storage.

[0105] In this embodiment, the connection control device disconnects the hard disk in the non-working state, so the power supply device no longer provides power to the disconnected hard disk, reducing the power consumption of the hard disk in the non-working state.

[0106] In one embodiment, the power supply method for the storage system further includes:

[0107] The connection control device further adjusts the duration of the first voltage output to the connected hard disk according to a preset voltage rise duration control strategy when detecting that the hard disk is connected to the connection control device.

[0108] Specifically, when a hard disk is inserted into the storage system, there may be a certain surge current, because the power supply device is still supplying power to other inserted hard disks at this time. The generation of the surge will cause the output voltage of the power supply device to have a transient rise in voltage, which may affect the power supply stability of other inserted hard disks. Therefore, when the connection control device detects that the hard disk is connected to the connection control device, that is, the port connected to the connection control device and the hard disk changes from voltage suspension to current conduction, it is determined that a hard disk is inserted into the connection control device. At this time, in order to avoid storage system instability caused by surge current when the hard disk is inserted, the connection control device adjusts the duration of the first voltage output to the connected hard disk according to a preset voltage rise time control strategy, such as a voltage rise strategy with a slope of a certain value, in which the voltage rise time is determined by the slope, or a sinusoidal voltage rise strategy, in which the voltage rise time is determined by a sinusoidal parameter, so that the voltage supplied by the power supply device to the hard disk rises slowly until it rises to the preset supply voltage. Among them, the surge current is proportional to the capacitance of the hard disk, and inversely proportional to the rise time. In the voltage rise time control strategy, the longer the voltage rise time is, the smaller the surge current is, and thus the smaller the impact is; in the voltage rise time control strategy, the shorter the voltage rise time is, the larger the surge current is, and thus the greater the impact is.

[0109] In this embodiment, the connection control device controls the duration of voltage output to the hard disk when the hard disk is inserted into the storage system, thereby reducing the impact of the instantaneous voltage rise caused by the surge when the hard disk is inserted into the storage system on the working stability of the entire storage system.

[0110] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0111] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0112] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be, but are not limited to, a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, and the like.

[0113] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0114] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A storage system, characterized in that: The storage system includes a power supply device, multiple hard disks, and multiple connection control devices; each of the connection control devices is electrically connected to a power supply interface and a feedback interface of the power supply device, and the connection control device is also electrically connected to one of the hard disks; wherein: The power supply device is used to adjust the supply voltage of the power supply interface according to the voltage of the feedback interface, and supply power to the hard disk connected to the connection control device through the connection control device; The connection control device is configured to disconnect the feedback interface when a failure of the connected hard disk is detected; The connection control device includes an overcurrent protection module and a switch module; the overcurrent protection module is electrically connected to the hard disk, the power supply interface of the power supply device, and the switch module, and the switch module is electrically connected to the feedback interface of the power supply device; wherein: The overcurrent protection module is configured to disconnect the overcurrent protection module from the hard disk when a fault is detected in the connected hard disk, and send a power-off signal to the switch module to disconnect the switch module from the power supply interface; The voltage at the working voltage detection point side is input from the power inlet of the switch module and output from the power outlet of the switch module to the feedback interface of the power supply device.

2. The system according to claim 1, wherein: The switch module is used to disconnect the feedback interface of the power supply device according to the power-off signal sent by the overcurrent protection module.

3. The system according to claim 2, characterized in that The power status interface of the overcurrent protection module is connected to the enable interface of the switch module; The overcurrent protection module is configured to disconnect the overcurrent protection module from the hard disk and control the power state interface to be in a closed state when a transmission failure of the connected hard disk is detected; The switch module is used to disconnect the feedback interface of the power supply device when it is detected that the power status interface is in the off state.

4. The system according to claim 1, wherein: The connection control device is also used for: When it is detected that the connected hard disk is in a non-working state, the connection with the connected hard disk is disconnected.

5. The system according to claim 1, wherein: The connection control device is also used for: When it is detected that the hard disk is connected to the connection control device, the duration of outputting voltage to the connected hard disk for the first time is adjusted according to a preset voltage rise duration control strategy.

6. A power supply method for a storage system, characterized in that: The method is applied to the storage system according to any one of claims 1 to 5; the method includes: The connection control device detects whether a failure occurs in the connected hard disk; The connection control device disconnects the feedback interface of the power supply device when detecting that the connected hard disk fails; When the overcurrent protection module detects a transmission failure of the connected hard disk, the overcurrent protection module disconnects the overcurrent protection module from the hard disk and sends a power-off signal to the switch module, so that the switch module disconnects the electrical connection with the feedback interface; The voltage at the working voltage detection point side is input from the power inlet of the switch module and output from the power outlet of the switch module to the feedback interface of the power supply device.

7. The method according to claim 6, characterized in that The method further comprises: The switch module disconnects the feedback interface of the power supply device according to the power-off signal sent by the overcurrent protection module.

8. The method according to claim 7, characterized in that The method further comprises: When the overcurrent protection module detects that a failure has occurred in the connected hard disk, it disconnects the connected hard disk and controls the power state interface to be in a closed state; When determining that the power state interface is in the off state, the switch module disconnects the feedback interface of the power supply device.

9. The method according to claim 6, characterized in that The method further comprises: The connection control device disconnects the connected hard disk when detecting that the connected hard disk is in a non-working state.

10. The method according to claim 6, characterized in that The method further comprises: When detecting that the hard disk is connected to the connection control device, the connection control device adjusts the duration of outputting voltage to the connected hard disk for the first time according to a preset voltage rise duration control strategy.

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