TWI571195B - Server rack - Google Patents

Description

Server cabinet

The invention relates to a cabinet, in particular to a server cabinet.

The power supply design of the conventional server cabinet receives the output power from at least one power supply by a bus bar and first supplies the output power to a power distribution board (PDB). And then output to a cabinet backplane (RBP) and a motherboard (MB) through the power distribution board, and then provide the fan backplane through the cabinet backplane (Fan Back Plane; FBP) ).

The power supply design of the conventional server cabinet, when a load current or a load voltage on the motherboard is abnormal, a hot Swap controller disposed on the power distribution plate will be distributed via the power supply. The output power of the board output to the cabinet backplane and the motherboard is disconnected. In this way, all components disposed on the motherboard, the backplane of the cabinet, and the fan backplane fail because there is no power supply, so that no component can detect whether the load current is abnormal or the load voltage is abnormal. And become a problem to be solved.

Accordingly, it is an object of the present invention to provide a server cabinet that can effectively recognize the phenomenon of load anomalies.

Thus, the server cabinet of the present invention includes a power supply, a bus bar, a fan backplane, a fan unit, a node, and a cabinet backplane. The node includes a motherboard, multiple computer components, a power distribution board, and a hot-swap controller.

The busbar is electrically coupled to the power supply to receive a first output power from the power supply. The fan unit is disposed on the fan backplane and electrically connected to the busbar to receive the first output power from the power supply to serve as a power source for the fan unit.

The computer components of the node are disposed on the motherboard. The hot plug controller of the node is disposed in the power distribution plate and electrically connected to the bus bar to receive the first output power from the power supply, thereby outputting a second related to the first output power Output power. The hot plug controller is also electrically coupled to the computer components to provide the second output power as a power source for the computer components. The hot plug controller also detects the second output power, and when the hot plug controller determines that the second output power is abnormal, the hot plug controller does not output the second output power.

The microcontroller is disposed on the cabinet backplane and electrically connected to the busbar via the fan backplane to receive the first output power as a power source. The microcontroller is also electrically connected to the hot plug controller to know whether the second output power of the hot plug controller has abnormality.

In some implementations, wherein, when the hot swap controller The hot plug controller determines that the second output power is abnormal when detecting that the voltage value of the second output power exceeds a predetermined voltage or detecting that the current value of the second output power exceeds a predetermined current.

In some implementations, the server cabinet further includes a cabinet management controller electrically connected to the microcontroller, wherein when the microcontroller determines that the second output power is abnormal, the microcontroller further A warning signal is transmitted to the cabinet management controller.

In some implementations, the microcontroller and the hot plug controller support an Inter-Integrated Circuit (I2C) interface, so that the microcontroller knows the second output of the hot plug controller. Whether the power has been abnormal.

Or in some implementations, wherein the hot plug controller directly outputs the first output power to the second output power.

In some embodiments, wherein the busbar is a large copper row.

In some implementations, the first output power and the second output power have a voltage value of 12 volts.

In some implementations, wherein the predetermined voltage is 14.671 volts, the predetermined current is 95 amps.

The power of the present invention is that the busbars are separately powered to the fan backplane and the power distribution board, and then powered by the fan backplane to the cabinet backplane, and the power distribution board is powered to the motherboard. When the load voltage or load current of the motherboard is abnormal, the microcontroller disposed on the backplane of the cabinet can be correctly configured by the heat disposed on the power distribution board. The plug-in controller knows whether the load voltage or the load current is abnormal.

1‧‧‧ nodes

11‧‧‧ motherboard

111‧‧‧Computer components

12‧‧‧Power distribution board

121‧‧‧hot swap controller

2‧‧‧Cabinet backplane

21‧‧‧Microcontroller

3‧‧‧Fan backplane

31‧‧‧Fan unit

4‧‧‧ Busbar

5‧‧‧Power supply

6‧‧‧Cabinet management controller

Other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is a block diagram illustrating a first embodiment of a server cabinet of the present invention; and FIG. 2 is a block BRIEF DESCRIPTION OF THE DRAWINGS A second embodiment of a server cabinet of the present invention is illustrated.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1, a first embodiment of a server cabinet of the present invention comprises a power supply 5, a bus bar 4, a Fan Back Plane (FBP) 3, a fan unit 31, and a node. (Node) 1, a rack backplane (RBP) 2, and a microcontroller (Micro Controller) 21. The node 1 includes a motherboard (MB) 11, a plurality of computer components 111, a power distribution board (PDB) 12, and a rack management controller (Rack/Chassis Management Controller; RMC/CMC). 6.

The bus bar 4 is electrically connected to the power supply 5 to receive a first output power from the power supply 5. In the present embodiment, the bus bar 4 is a large copper bus, and the voltage value of the first output power is 12 volts. In other embodiments, the bus bar 4 can also be made of other conductive gold. It is made of a material, and the voltage value of the first output power may be other values, and is not limited thereto. In addition, in the present embodiment, the bus bar 4 is electrically connected to one power supply 5, and in other embodiments, the bus bar 4 can also be used to electrically connect a plurality of power supplies 5, without limitation.

The fan unit 31 is disposed on the fan backplane 3 and electrically connected to the bus bar 4 to receive the first output power from the power supply 5 as a power source of the fan unit 31. For example, the fan unit 31 includes at least one fan and can receive a control signal to control the rotational speed of the at least one fan, and can also detect the rotational speed of the at least one fan to generate a rotational speed signal.

The computer components 111 of the node 1 are disposed on the motherboard 11. For example, the node 1 can belong to a computing node, that is, the computer component 111 is, for example, a processor, a memory, etc., and the node 1 can also belong to a storage node, that is, the computer component 111 is, for example, a storage unit, such as a hard dish. In other words, which computer components are provided on the motherboard 11, or which type of node the node 1 belongs to is not limited thereto. Moreover, only one block is shown in the drawings to indicate such computer components 111, not a limitation.

The hot swap controller (HSC) 121 of the node 1 is disposed on the power distribution plate 12 and electrically connected to the bus bar 4 to receive the first output power from the power supply 5, and further A second output power associated with the first output power is output. In this embodiment, the hot plug controller 121 directly outputs the first output power to the second output power, that is, the voltage value of the second output power is also 12 volts, but not limited to this.

The hot swap controller 121 is also electrically coupled to the computer components 111 on the motherboard 11 to provide the second output power as a power source for the computer components 111. The hot plug controller 121 also detects the second output power. When the hot plug controller 121 determines that the second output power is abnormal, the hot plug controller 121 does not output the second output power. More specifically, when the computer component 111 operates abnormally such that its load voltage (ie, the voltage value of the second output power) or its load current (ie, the current value of the second output power) changes, When the hot-swap controller 121 detects that the voltage value of the second output power exceeds a predetermined voltage, or detects that the current value of the second output power exceeds a predetermined current, the hot-swap controller 121 determines the The second output power is abnormal. In this embodiment, the predetermined voltage is 14.671 volts and the predetermined current is 95 amps. In addition, the hot swap controller 121 detects and determines that the second output power is abnormal and does not output the second output power, that is, implements an over voltage protection (OVP) mechanism. Or an Over Current Protection (OCP) mechanism.

The micro controller (21) is disposed on the cabinet backplane 2, and is electrically connected to the busbar 4 via the fan backplane 3 to receive the first output power as a power source. The microcontroller 21 is also electrically connected to the hot plug controller 121 to know whether the second output power of the hot plug controller 121 has abnormality. In this embodiment, the microcontroller 21 and the hot plug controller 121 both support an interface of an Inter-Integrated Circuit (I2C), so that the microcontroller 21 knows the second of the hot plug controller 121. Whether the output power has been abnormal. For example, the hot plug controller 121 further includes a register (not shown). When the hot plug controller 121 determines that the second output power is abnormal and does not output the second output power, the hot swap controller 121 The hot swap controller 121 changes the logic value stored by the register, and the logic value can indicate whether the second output power is an overload voltage abnormality or a load current abnormality. The microcontroller 21 can obtain the logic value of the register of the hot swap controller 121 through the interface of the I2C, and further know whether an overload voltage abnormality or a load current abnormality occurs.

The microcontroller 21 is also electrically connected to the rack management controller 6. When the microcontroller 21 determines that the second output power is abnormal, the microcontroller 21 also transmits an alert signal to the rack management controller 6. For example, when the user receives the warning signal by the cabinet management controller 6 and learns that the second power is abnormal, the cabinet management controller 6 can control the server cabinet to restart, or The user can also use a server to control a baseboard management controller (BMC) of the server cabinet (not shown) via the network, thereby instructing the rack management controller 6 to control the server cabinet to restart.

Referring to Figure 2, a second embodiment of the server cabinet of the present invention is substantially the same as the first embodiment, except that the server cabinet contains four nodes 1, rather than one node 1. Each hot-swap controller 121 disposed in each of the four power distribution boards 12 of the four nodes 1 is electrically connected to the bus bar 4, and the microcontroller 21 disposed on the cabinet backplane 2 is electrically connected to the four Each hot plug controller 121 of node 1.

In summary, the busbar 4 is separately powered to the wind. The fan backplane 3 and the power distribution board 12 of the node 1 are powered by the fan backplane 3 to the cabinet backplane 2, and are powered to the motherboard 11 via the power distribution panel 12, so that when the motherboard 11 is When the load voltage or load current of the computer component 111 is abnormal, the microcontroller 21 disposed on the cabinet backplane 2 can be correctly determined by the hot plug controller 121 disposed on the power distribution board 12. The load voltage or the load current is abnormal, so the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the simple equivalent changes and modifications made by the scope of the patent application and the patent specification of the present invention are It is still within the scope of the invention patent.

1‧‧‧ nodes

11‧‧‧ motherboard

111‧‧‧Computer components

12‧‧‧Power distribution board

121‧‧‧hot swap controller

2‧‧‧Cabinet backplane

21‧‧‧Microcontroller

3‧‧‧Fan backplane

31‧‧‧Fan unit

4‧‧‧ Busbar

5‧‧‧Power supply

6‧‧‧Cabinet management controller

Claims (8)

A server cabinet includes: a power supply; a bus bar electrically connected to the power supply to receive a first output power from the power supply; a fan backplane; and a fan unit disposed on the fan a backplane, and electrically connected to the busbar, and receiving the first output power from the power supply to serve as a power source of the fan unit; a node, including a motherboard, and a plurality of computer components disposed on the motherboard a power distribution board, and a hot swap controller disposed on the power distribution plate and electrically connected to the bus bar to receive the first output power from the power supply, thereby outputting a correlation related to the first Outputting a second output power of the power, the hot plug controller is further electrically connected to the computer components to provide the second output power as a power source for the computer components, the hot plug controller also detecting the second output Power, when the hot plug controller determines that the second output power is abnormal, the hot plug controller does not output the second output power; and one machine Backsheet; and a microcontroller, disposed in the cabinet backplane, and via the fan electrically connected to the backplane bus, to receive the first output power as an electric The microcontroller further electrically connects the hot plug controller to know whether an abnormality has occurred in the second output power of the hot plug controller. The server cabinet of claim 1, when the hot plug controller detects that the voltage value of the second output power exceeds a predetermined voltage, or detects that the current value of the second output power exceeds a predetermined current The hot plug controller determines that the second output power is abnormal. The server cabinet of claim 2, further comprising a cabinet management controller electrically connected to the microcontroller, wherein when the microcontroller determines that the second output power is abnormal, the microcontroller further A warning signal is transmitted to the cabinet management controller. The server cabinet of claim 2, wherein the microcontroller and the hot plug controller support an Inter-Integrated Circuit (I2C) interface, so that the microcontroller knows the hot swap controller Whether the second output power has abnormality. The server cabinet of claim 2, wherein the hot plug controller directly outputs the first output power to the second output power. The server cabinet of claim 5, wherein the bus bar is a large copper bar. The server cabinet of claim 6, wherein the first output power and the second output power have a voltage value of 12 volts. The server cabinet of claim 7, wherein the predetermined voltage is 14.671 volts and the predetermined current is 95 amps.