TW201500902A - Rack and power controlling method thereof - Google Patents

Abstract

A power controlling method for a rack with a plurality of nodes and power supplies includes the following steps. A power information of each nodes is collected to calculate a total power consumption value of all nodes. A turn-on number of the power supply is calculated according to the total power consumption value and a maximum power supply value of single power supply. A state information of each nodes is read to obtain a first priority sequence corresponding to all nodes. At least two main power supplies served as the main power supply and the secondary power supply are enabled and the residual power supplies are disabled according to the turn-on number of the power supply and the first priority sequence. The main power supply is used for supplying the working voltage to the nodes.

Description

Cabinet and its power control method

A power control method, in particular, relates to a cabinet and a power control method thereof.

In general, current servers generally emphasize their individual performance and efficacy. Based on the concept of the server designed, the emphasis is on division of labor and independent work. That is to say, each server node (Server Node) dynamically adjusts its own energy consumption only for its own situation and needs, in order to pursue a balance between its own energy saving and performance.

However, under this concept, each server node is limited to each other and cannot work together. It often causes all server nodes in the data center of the server to operate at the same performance state at the same time. And cause too much power consumption. Moreover, under normal operation of the server, the power supply configured on the server is activated to provide the power supply voltage required by the server node of the server. However, in the actual operation of the server, all server nodes are not necessarily They are all fully loaded and cause excessive power consumption.

In view of this, the prior art adjusts the operating state of the power supply for the size of the load corresponding to the server node, that is, part of the power supply, and part of the power supply. However, these power supplies are turned on in the set order, and the power supplies that are sorted later are only turned on when the power demand of the load corresponding to the server node is high. At this point, the power supply that is sorted earlier will still be used, resulting in unequal use of all power supplies. As such, the more commonly used power supplies may reach their end of life earlier. In addition, the capacitance of the power supply is also deteriorated due to the commonly used relationship, and the conversion efficiency is deteriorated. Therefore, how to effectively use the power supply on average will be an important issue.

The present invention provides a cabinet and a power control method thereof, thereby averaging the use time of the power supply to reduce the aging due to the commonly used relationship and the probability of power supply fault damage.

The power control method for a cabinet disclosed in the present invention has a plurality of nodes and a plurality of power supplies. The power control method for this cabinet includes the following steps. The respective power information of the nodes is received to calculate the total power consumption value of the node. The number of power supply turns on is calculated based on the total power consumption value and the maximum supply power value of one of the power supplies. Read the respective status information of the power supply to obtain the first priority order corresponding to the power supply. According to the number of power supply opening and the first priority order, at least two of the power supply are enabled as the main power supply and the backup power supply, and the remaining power supply is disabled as at least one power supply of the main power supply. The device provides at least one operating voltage to the node, and one of the power supplies as the backup power supply and the remaining power supply does not provide the operating voltage to the node.

In an embodiment, the power control method of the foregoing cabinet further includes the following steps. At a preset time, the respective status information of the remaining power supplies is read to obtain a second priority order corresponding to the remaining power supplies. According to the number of power supply openings and the second priority order, at least two of the remaining power supplies are enabled as the primary power supply and the backup power supply. The power supply that was originally used as the primary power supply and backup power supply was disabled. Determine if the nodes are all stopped. If it is determined that the nodes are not stopped, returning to the preset time, reading the respective state information of the remaining power suppliers to obtain the second priority order corresponding to the remaining power supplies.

In an embodiment, the power control method of the foregoing cabinet further includes the following steps. Determine whether the running time of the node reaches the preset time. If it is determined that the operation time of the node does not reach the preset time, return to the step of determining whether the operation time of the node reaches the preset time. If it is determined that the operation time of the node reaches the preset time, the preset time is entered, and the respective status information of the remaining power supplies is read to obtain the second priority order corresponding to the remaining power supply.

In an embodiment, the at least one power supply and a part of the remaining power supply as the main power supply are divided into a first group, and the remaining power supply is used as the remaining power supply and the remaining part of the remaining power supply The power supply is divided into a second group.

In one embodiment, the at least one power supply as the primary power supply operates at a first voltage, and the at least one power supply as a backup power supply operates at a second voltage, wherein the first voltage is greater than the second voltage .

The present disclosure provides a cabinet including a plurality of power supplies, a plurality of nodes, a cabinet management controller, and a control unit. A plurality of power supplies are used to provide operating voltages, respectively. Multiple nodes are used to provide power information separately. The rack management controller is coupled to the node and the power supply for receiving power information, and calculating a total power consumption value of the node according to the power information, and calculating according to the total power consumption value and the maximum power supply value of one of the power supplies. The number of power supplies is turned on, and the first priority order is calculated based on the plurality of status information of the power supply. The control unit is coupled to the cabinet management controller and the power supply for receiving and generating a plurality of control signals according to the number of power supply openings and the first priority order, so that the power supply is at least two of the power supply and the backup The power supply and the remaining power supply are disabled, and at least one power supply and the remaining power supply as the backup power supply do not provide at least one operating voltage to the node.

In an embodiment, in the foregoing preset time, the cabinet management controller reads the respective status information of the remaining power supplies to obtain a second priority order corresponding to the remaining power supplies, and the second priority sequence is transmitted to the control unit. And the control unit enables at least two of the remaining power supplies as the main power supply and the backup power supply according to the number of power supply opening and the second priority order, and the disable is originally used as the main power supply and the backup power supply. The power supply device determines whether the nodes are all stopped. If it is determined that the nodes are not stopped, the cabinet management controller reads the respective status information of the remaining power supplies again to obtain the second priority corresponding to the remaining power supplies. In sequence, the second priority sequence is transmitted to the control unit again, and the control unit enables the remaining power supply to be at least two of the power supply and the backup power supply according to the power supply opening amount and the second priority order, and Prohibition The main power supply and the power supply of the backup power supply until the node stops operating.

In an embodiment, the cabinet management controller further determines whether the operation time of the node reaches a preset time. If it is determined that the operation time of the node reaches a preset time, the cabinet management controller reads the respective states of the remaining power supplies again. Information, in order to obtain a second priority order corresponding to the remaining power supplies, the second priority order is transmitted to the control unit again, and the control unit enables at least the remaining power supply according to the number of power supply openings and the second priority order. The second is the main power supply and backup power supply, and the power supply that was originally used as the main power supply and the backup power supply is disabled. If it is determined that the operation time of the node has not reached the preset time, the cabinet management controller continues. Determine whether the operation time of the node reaches a preset time until it is determined that the operation time of the node reaches a preset time.

In an embodiment, the at least one power supply and a part of the remaining power supply as the main power supply are divided into a first group, and the remaining power supply is used as the remaining power supply and the remaining part of the remaining power supply The power supply is divided into a second group.

In one embodiment, the at least one power supply as the primary power supply operates at a first voltage, and the at least one power supply as the backup power supply operates at a second voltage, wherein the first voltage is greater than the second Voltage.

The cabinet and the power control method thereof disclosed by the present invention calculate the total power consumption value of the node according to the power information provided by the node, and calculate the power supply according to the total power consumption value and the maximum power supply value of the single power supply. Turn on the quantity, then read the status information of the power supply to obtain the priority order. Finally, according to the number of power supply opening and the foregoing priority order, at least the second power supply is enabled as the main power supply and the backup power supply. The remaining power supply is disabled and the operating voltage is supplied to the node at the primary power supply, while the backup power supply and the remaining power supply do not provide operating voltage. As a result, the average power supply is used to reduce the aging due to the often used relationship and the probability of power supply failure.

The features and implementations of the present invention are described in detail in conjunction with the drawings. as follows.

100‧‧‧ cabinet

110_1~110_N‧‧‧Power supply

120_1~120_M‧‧‧ nodes

130‧‧‧Cabinet Management Controller

140‧‧‧Control unit

Figure 1 is a schematic view of the cabinet of the present disclosure.

FIG. 2 is a flow chart of a power control method for the cabinet of the present disclosure.

FIG. 3 is a flow chart of a power control method of another cabinet according to the present disclosure.

Please refer to "Figure 1" for a schematic view of the cabinet of the present disclosure. The cabinet 100 includes a plurality of power supplies 110_1~110_N, a plurality of nodes 120_1~120_M, a Rack Management Controller (RMC) 130, and a control unit 140, where N and M are positive integers greater than 1, and N and M can be the same or different.

The power supplies 110_1~110_N are respectively provided with an operating voltage for use by the nodes 120_1~120_M and operate. Moreover, the maximum supply power values that the power supplies 110_1 110 110_N can provide are, for example, the same, and the maximum supply power value is, for example, 500 W.

In this embodiment, the power supplies 110_1 110 110_N can be divided into a main power supply, a backup power supply, and the remaining power supply. Among them, the number of primary power supplies corresponds, for example, to the number of backup power supplies. That is to say, the number of primary power supplies is three, and the number of backup power supplies is also three, and the rest are analogous. Further, the primary power supply can be divided into a first group with a portion of the remaining power supplies, and the backup power supply can be divided into a second group with the remaining power supplies of the other portion.

For example, when the power supplies 110_1~110_3 are enabled to start and provide operating voltages to the nodes 120_1~120_M, the power supplies 110_1~110_3 can be regarded as the main power supply. When the power supplies 110_4~110_6 are enabled to start and the operating voltage is not supplied to the nodes 120_1~120_M, the power supplies 110_4~110_6 can be regarded as the backup power supply. When the power supplies 110_4~110_6 are not enabled to start and the operating voltage is not supplied to the nodes 120_1~120_M, the power supplies 110_4~110_6 can be regarded as the remaining power supplies.

And, the power supply that is regarded as the main power supply, for example, works at the first The voltage, which is considered to be the backup power supply, operates, for example, at a second voltage, and is considered to be the remaining power supply, for example, operating at a third voltage. Wherein the first voltage is greater than the second voltage and the second voltage is greater than the third voltage. In the present embodiment, the first voltage is, for example, 12.2 V, the second voltage is, for example, 11.9 V, and the third voltage is, for example, 0 V.

Nodes 120_1~120_M are used to provide power information respectively. Further, the nodes 120_1~120_M each include, for example, a Baseboard Management Controller (BMC) and a connection interface. The baseboard management controller is configured to detect the operating states of the nodes 120_1~120_M to provide power information of the nodes 120_1~120_M. The power information is, for example, the voltage, current, and power consumption of the nodes 120_1 120 120_M.

In this embodiment, the connection interface is, for example, an Inter Integrate Circuit (I2C) bus, a Serial Peripheral Interface (SPI) bus, and a General Purpose Input Output (GPIO) bus.

The rack management controller 130 can be coupled to the baseboard management controllers of the nodes 120_1~120_M through the foregoing connection interface for receiving power information (that is, voltage, current, and power consumption of each node 120_1~120_M), and according to the power information. Calculate the total power consumption value of the nodes 120_1~120_M.

Next, the rack management controller 130 calculates the power supply on quantity based on the total power consumption value and the maximum supply power value of one of the power supplies 110_1 110 110_N (ie, a single power supply). Wherein, the maximum power supply value of the foregoing single power supply is, for example, 500W. Further, the power supply turn-on amount is, for example, a total power consumption value divided by a maximum power supply value of a single power supply.

In an embodiment, assuming that the total power consumption value is 1400 W and the maximum power supply value of the single power supply is 500 W, the rack management controller 130 performs the total power consumption value and the maximum power supply value of the single power supply. Calculate to calculate 1400W/500W=2.8, that is, the power supply is turned on by 2.8 units. However, since the power supply does not open only 0.8 units, the rack management controller 130 regards less than one power supply as one power supply, so that the power management unit is counted by the cabinet management controller 130. It is 3 sets. That is, three main power supplies and three backup power supplies need to be turned on.

In another embodiment, assuming that the total power consumption value is 1600 W and the maximum power supply value of the single power supply is 500 W, the rack management controller 130 will calculate the total power consumption value and the maximum power supply value of the single power supply. The calculation is performed to calculate 1600 W/500 W=3.2, that is, the number of power supply openings is 3.2, and at this time, the number of power supply calculations calculated by the cabinet management controller 130 is four. That is, 4 main power supplies and 4 backup power supplies need to be turned on.

In addition, the rack management controller 130 is also coupled to the power supply 110_1~110_N through the internal integrated circuit bus bar for reading the status information of the power supplies 110_1~110_N to obtain the corresponding power supply 110_1~110_N. A priority order. The power supplies 110_1 110 110_N are each configured with a memory to store the foregoing status information. Moreover, the foregoing status information includes, for example, an identification code and a working hours. That is, the rack management controller 130 sorts the power supplies 110_1 110 110_M according to the identification codes and the working hours corresponding to the power supplies 110_1 110 110_N to obtain the first priority order. Moreover, the arrangement of the first priority order is, for example, arranged with the least number of working hours to the maximum number of working hours, instead of being sorted by the size of the identification code.

The control unit 140 is coupled to the rack management controller 130 and the power supply 110_1~110_N for receiving the power supply open quantity, generating a plurality of control signals, and enabling at least two of the power supply 110_1~110_N as the main power supply and The backup power supply is disabled, and the remaining power supplies 110_1~110_N are disabled to provide the operating voltage to the nodes 120_1~120_M by the power supply as the main power supply, and the power supply and the remaining power supply as the backup power supply The power supply does not provide operating voltage to the nodes 120_1~120_M. In this embodiment, the control unit 140 is, for example, a Complex Programming Logic Device (CPLD).

For example, when the cabinet management controller 130 calculates that the number of power supply openers is three, and the first priority order is the power supply 110_1, 110_3, 110_5, 110_2, 110_4, 110_6, the control unit 140 generates, for example, a corresponding Control signal all to the power supply 110_1~110_N, the power supply 110_1, 110_3, 110_5 is used as the main power supply and the enable power supply, 110_2, 110_4, 110_6 as the backup power supply, and the power supply 110_7~110_N is disabled.

Therefore, the power supplies 110_1, 110_3, 110_5 (main power supply) provide operating voltages for use by the nodes 120_1~120_M. The power supplies 110_2, 110_4, 110_6 (backup power supply), 110_7~110_N (the remaining power supplies) do not provide operating voltages to the nodes 120_1~120_M.

In another embodiment, when the cabinet management controller 130 calculates that the number of power supply openers is two, and the first priority order is the power supplies 110_1, 110_3, 110_2, 110_4, the control unit 140 generates corresponding control, for example. The signals are all supplied to the power supplies 110_1~110_N, so that the power supplies 110_1, 110_3 serve as the main power supply and the enable power supply, 110_2, 110_4 as the backup power supply, and the power supplies 110_5~110_N are disabled.

Therefore, the power supplies 110_1, 110_3 (primary power supply) provide operating voltages to the nodes 120_1~120_M for use. The power supply 110_2, 110_4 (backup power supply), 110_5~110_N (the remaining power supply) does not provide the operating voltage to the nodes 120_1~120_M. The rest is analogous. In this way, it is possible to avoid the use of a commonly used power supply, which is prone to aging and causes a deterioration in conversion efficiency.

Further, after a period of operation of the power supply (for example, the power supply 110_1, 110_3) as the main power supply, for example, the nodes 120_1~120_M operate using the operating voltages provided by the power supplies 110_1, 110_3, cabinet management The controller 130 reads status information of the remaining power supplies, such as the number of hours worked. Then, the rack management controller 130 calculates the second priority order according to the status information of the remaining power supplies obtained, and transmits the second priority order to the control unit 140. It is assumed that the second priority order is the power supply 110_5, 110_7, 110_6, 110_8.

Thereafter, the control unit 140 enables at least two of the remaining power supplies as the primary power supply and the backup power supply according to the number of power supply openings and the second priority order. The device, for example, the enabling power supply 110_5, 110_7 as the main power supply and the enabling power supply 110_6, 110_8 as the backup power supply, and the operating voltage is supplied by the power supply 110_5, 110_7 (main power supply) Nodes 120_1~120_M. Next, the control unit 140 disables the power supplies that were originally used as the primary power supply and the backup power supply, such as the power supplies 110_1, 110_3, 110_2, 110_4. Thus, the power supplies 110_1~110_4, 110_9~110_N are not enabled and do not operate.

In addition, before the cabinet management controller 130 reads the status information of the remaining power supplies, the rack management controller 130 further determines whether the operation time of the nodes 120_1~120_M reaches the preset time. This and the preset time are used, for example, as a basis for adjusting the operation of the power supplies 110_1 110 110_N. And, the preset time is, for example, one week or one month.

When it is determined that the operation time of the nodes 120_1~120_M does not reach the preset time, the cabinet management controller 130 continues to detect the operation time of the nodes 120_1~120_M until the foregoing operation time reaches a preset time. On the other hand, when it is determined that the operation time of the nodes 120_1~120_M reaches the preset time, the cabinet management controller 130 reads the status information of the remaining power supplies to calculate the second priority order, and the second The priority order is transmitted to the control unit 140.

Thereafter, the control unit 140 enables at least two of the remaining power supplies as the primary power supply and the backup power supply according to the number of power supply on and the second priority. Moreover, the control unit 140 disables the power supply that was originally used as the primary power supply and the backup power supply.

In addition, taking the above, after disabling the power supply originally used as the power supply and the backup power supply, the rack management controller 130 detects the operating states of the nodes 120_1~120_M. That is, the rack management controller 130 determines whether the nodes 120_1~120_M are all stopped, as a basis for continuously monitoring and adjusting the number of operations of the power supplies 110_1 110 110_N.

For example, when it is determined that the nodes 120_1~120_M are not stopped, The cabinet management controller 130 will continue to detect and determine whether the operation status of the nodes 120_1~120_M reaches the preset time and the corresponding operation process. When it is determined that the nodes 120_1~120_M are all stopped, it indicates that the cabinet 100 stops operating, and the cabinet management controller 130 stops detecting and determining whether the operating states of the nodes 120_1~120_M reach the preset time and the corresponding operation flow. In this way, by adjusting the operating states of the power supplies 110_1 110 110_N, it is possible to avoid aging due to the use of the commonly used power supply, and the conversion efficiency is deteriorated.

From the description of the foregoing embodiments, a power control method of a cabinet can be summarized. Please refer to "Figure 2", which is a flow chart of the power control method for the cabinet of the present disclosure. The cabinet of this embodiment has a plurality of nodes and a plurality of power supplies. In step S210, a power information of each node is received to calculate a total power consumption value of the node. In step S220, the power supply on quantity is calculated based on the total power consumption value and the maximum supply power value of one of the power supplies. In step S230, the respective status information of the power supply is read to obtain the first priority order corresponding to the power supply. In step S240, according to the number of power supply opening and the first priority order, at least two of the power supply are enabled as the main power supply and the backup power supply, and the remaining power supply is disabled as the main power supply. At least one power supply provides at least one operating voltage to the node, and at least one power supply as the backup power supply and the remaining power supply does not provide an operating voltage to the node. In this embodiment, the foregoing status information includes, for example, an identification code and a working hours.

Please refer to "3", which is a flow chart of the power control method of the cabinet disclosed in the present disclosure. The cabinet of this embodiment has a plurality of nodes and a plurality of power supplies. In step S302, a power information of each node is received to calculate a total power consumption value of the node. In step S304, the power supply on quantity is calculated based on the total power consumption value and the maximum supply power value of one of the power supplies. In step S306, the respective status information of the power supply is read to obtain the first priority order corresponding to the power supply. In step S308, according to the power supply opening quantity and the first priority order, at least two of the power supply are enabled as the main power supply and the backup power supply, and the remaining power supply is disabled as the main power supply. At least one power supply provides at least one operating voltage to the node as at least one power supply of the backup power supply The reactor and the remaining power supply do not provide operating voltage to the node.

In step S310, it is determined whether the operation time of the node reaches a preset time. If it is determined that the operation time of the node has not reached the preset time, the process returns to step S310 to continuously determine whether the operation time of the node reaches a preset time. If it is determined that the operation time of the node reaches the preset time, the process proceeds to step S312, and the state information of each of the remaining power supplies is read for a preset time to obtain a second priority order corresponding to the remaining power supplies. In step S314, at least two of the remaining power supplies are enabled as the primary power supply and the backup power supply according to the number of power supply on and the second priority.

In step S316, the power supply originally serving as the primary power supply and the backup power supply is disabled. In step S318, it is determined whether the nodes are all stopped. If it is determined that the nodes are not stopped, the process returns to step S310 to continuously perform the process of adjusting the operation of the power supply. If it is determined that the nodes are all stopped, the flow of the power control method is ended. In this embodiment, the foregoing status information includes, for example, an identification code and a working hours.

The cabinet and the power control method thereof according to the embodiment of the present disclosure calculate the total power consumption value of the node according to the power information provided by the node, and calculate the power source according to the total power consumption value and the maximum power supply value of the single power supply. The number of suppliers is turned on, and according to the number of power supply openings, the pair of at least one main power supply and the backup power supply are activated, wherein the operating voltage is supplied to the node by at least one main power supply, and at least one standby power supply is provided. The device does not provide operating voltage to the node. In this way, the power saving function can be achieved, and the situation that the cabinet cannot operate when the power supply is abnormal can be avoided.

According to an embodiment of the present invention, the total power consumption value of the node is calculated according to the power information provided by the node, and the power supply is turned on according to the total power consumption value and the maximum power supply value of the single power supply. Quantity, then read the status information of the power supply to obtain the first priority order, and finally enable at least two of the power supply as the main power supply and the backup power supply according to the number of power supply opening and the first priority order. And the remaining power supply is disabled, and the operating voltage is supplied to the node by the main power supply, and the standby power supply and the remaining power supply do not provide the operating voltage. In addition, you can further At a preset time, the status information of the remaining power supply is read to obtain the second priority order, thereby adjusting the operating state of the power supply and the corresponding working hours. As a result, the average power supply is used to reduce the aging due to the often used relationship and the probability of power supply failure.

While the present invention has been described above in the foregoing embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

Claims (10)

A power supply control method for a cabinet, the cabinet has a plurality of nodes and a plurality of power supplies, and the power control method of the cabinet includes: receiving a power information of each of the nodes to calculate a total power consumption value of the nodes; Calculating a power supply open quantity according to the total power consumption value and a maximum power supply value of one of the power supplies; reading a status information of each of the power supply sources to obtain corresponding power supply devices a first priority order; and enabling the at least two of the power supplies as the primary power supply and the backup power supply according to the power supply opening quantity and the first priority order, and disabling the remaining power supplies The at least one power supply of the main power supply provider provides at least one operating voltage to the nodes, the at least one power supply as the backup power supply, and the remaining power supplies not providing the at least one The operating voltage is given to these nodes. The power control method of the cabinet of claim 1, further comprising: reading the status information of each of the remaining power supplies for a preset time to obtain a corresponding one of the remaining power supplies a priority order; according to the power supply opening quantity and the second priority order, enabling at least two of the remaining power supply devices as the main power supply and the backup power supply; the disable is originally used as the main power supply and The power supply of the standby power supply; determining whether the nodes are all stopped; and if it is determined that the nodes are not stopped, returning to the preset time, reading the remaining power supplies The respective status information is obtained to obtain the remaining second priority order corresponding to the power supplies. The power control method of the cabinet as claimed in claim 2, further comprising: Determining whether an operation time of the nodes reaches the preset time; if it is determined that the operation time of the nodes does not reach the preset time, returning to the step of determining whether the operation time of the nodes reaches the preset time And if it is determined that the operation time of the nodes reaches the preset time, entering the preset time, reading the state information of each of the remaining power supplies to obtain the remaining power supply corresponding to the power supply The second priority step. The power supply control method of the cabinet of claim 1, wherein the at least one power supply as a main power supply and the remaining ones of the power supply are divided into a first group as a backup power supply The at least one power supply and the remaining power supplies of the other part are divided into a second group. The power supply control method of the cabinet of claim 1, wherein the at least one power supply as the primary power supply operates at a first voltage, and the at least one power supply as the backup power supply operates at a a second voltage, wherein the first voltage is greater than the second voltage. A cabinet includes: a plurality of power supplies for respectively providing a working voltage; a plurality of nodes for respectively providing a power information; and a cabinet management controller coupled to the nodes and the power supplies, Receiving the power information, and calculating a total power consumption value of the nodes according to the power information, and calculating a power supply according to the total power consumption value and a maximum supply power value of one of the power supplies. Calculating a first priority order according to the plurality of status information of the power supply; and a control unit coupled to the cabinet management controller and the power supply for receiving and according to the power supply The number of suppliers opened and the first priority order, generating a plurality of control signals, enabling at least two of the power supplies as the primary power supply and the backup power supply, and disabling the remaining power supplies as The at least one power supply of the primary power supply provides at least one operating voltage to the nodes as the at least one power supply of the backup power supply The reactor and the remainder of the plurality of power supply is not provided to the at least one operating voltage These nodes. The cabinet of claim 6, wherein the cabinet management controller reads the status information of each of the remaining power supplies for a preset time to obtain a second corresponding to the remaining power supplies. Priority order, and the second priority sequence is transmitted to the control unit, and the control unit enables at least two of the remaining power supplies as the main power supply according to the power supply open quantity and the second priority order And the backup power supply, the power supply that is originally used as the main power supply and the backup power supply, determines whether the nodes are all stopped, and if it is determined that the nodes are not stopped, the cabinet management control The device again reads the status information of each of the remaining power supplies to obtain the second priority order corresponding to the remaining power supplies, and the second priority sequence is transmitted to the control unit again, and the control unit According to the power supply opening quantity and the second priority order, enabling at least one of the remaining power supply devices as the main power source The power supply and the power supply that were originally used as the main power supply are disabled, and the power supply that is disabled is used as the backup power supply until the nodes are all stopped. The cabinet of claim 7, wherein the cabinet management controller further determines whether an operation time of the nodes reaches the preset time, and if it is determined that the operation time of the nodes reaches the preset time, the cabinet management The controller reads the status information of each of the remaining power supplies again to obtain the second priority order corresponding to the remaining power supplies, and the second priority sequence is transmitted to the control unit again, and the control The unit again enables at least one of the remaining power supplies as the primary power supply according to the number of power supply openings and the second priority order, and disables the power supply devices that were originally used as the primary power supply. And the power supply that is disabled is used as the backup power supply. If it is determined that the operation time of the nodes does not reach the preset time, the cabinet management controller continuously determines whether the operation time of the nodes reaches the The preset time is determined until it is determined that the operation time of the nodes reaches the preset time. The cabinet of claim 6, wherein the at least one power supply and a part of the remaining power supplies as the main power supply are divided into a first group and used as a backup power source. The at least one power supply of the supplier and the remaining power supplies of the other part are divided into a second group. The cabinet of claim 6, wherein the at least one power supply as the primary power supply operates at a first voltage, and the at least one power supply as the backup power supply operates at a second voltage, Wherein the first voltage is greater than the second voltage.