Abstract: A power supply device with dual power source planes and a server. The device includes: a plurality of controllers connected in parallel; a first Power Supply Unit (PSU) power source group and a second PSU power source group each includes two PSU power sources connected in parallel, and the first PSU power source group and the second PSU power source group are respectively located on two independent power source planes; and a power source backboard, wherein the power source backboard includes a first copper skin layer and a second copper skin layer, which are not connected with each other, the first PSU power source group is connected to the input end of each controller by means of the first copper skin layer, and the second PSU power source group is connected to the input end of each controller by means of the second copper skin layer.

Abstract: A solid-state disk access control method and apparatus, a computer device, and a storage medium are provided. The method includes: detecting controller nodes connected to a Peripheral Component Interconnect Express (PCIe) switch and Non-Volatile Memory Express (NVMe) solid-state disks connected to the PCIe switch; setting a first mapping connection relationship to be formed between each NVMe solid-state disk and one of the controller nodes, and setting second mapping connection relationships to be formed between each NVMe solid-state disk and the remaining controller nodes; and under a condition that any NVMe solid-state disk is accessed, in response to a determination that the first mapping connection relationship is abnormal, selecting one of the remaining controller nodes as a standby controller of the accessed NVMe solid-state disk, and modifying the second mapping connection relationship between the standby controller and the accessed NVMe solid-state disk to the first mapping connection relationship.

Abstract: Provided are a chassis ear apparatus and a mounting method thereof. The chassis ear apparatus includes a shell, wherein a chassis ear seat is detachably mounted on a back surface of the shell, and the chassis ear seat is configured to be fixed to a rack after a server is installed into the rack; a printed circuit board is arranged at a front surface of the shell, the printed circuit board is installed from the front surface of the shell and is detachably mounted on the chassis ear seat, and the printed circuit board is connected to a mainboard inside the server via a signal cable; and the signal cable penetrates through a gap between the shell and the chassis ear seat and is inserted into a cable socket on a front surface of the printed circuit board from the front surface of the shell.

Abstract: Provided are a chassis ear apparatus and a mounting method thereof. The chassis ear apparatus includes a shell, wherein a chassis ear seat is detachably mounted on a back surface of the shell, and the chassis ear seat is configured to be fixed to a rack after a server is installed into the rack; a printed circuit board is arranged at a front surface of the shell, the printed circuit board is installed from the front surface of the shell and is detachably mounted on the chassis ear seat, and the printed circuit board is connected to a mainboard inside the server via a signal cable; and the signal cable penetrates through a gap between the shell and the chassis ear seat and is inserted into a cable socket on a front surface of the printed circuit board from the front surface of the shell.

Abstract: A power supply device with dual power source planes and a server. The device includes: a plurality of controllers connected in parallel; a first Power Supply Unit (PSU) power source group and a second PSU power source group each includes two PSU power sources connected in parallel, and the first PSU power source group and the second PSU power source group are respectively located on two independent power source planes; and a power source backboard, wherein the power source backboard includes a first copper skin layer and a second copper skin layer, which are not connected with each other, the first PSU power source group is connected to the input end of each controller by means of the first copper skin layer, and the second PSU power source group is connected to the input end of each controller by means of the second copper skin layer.

Abstract: A method and apparatus for controlling startup of a hard disk drive system, and a storage device. The hard disk drive system includes two or more hard disk drives. The method for controlling startup of a hard disk drive system includes: latching the initialization states of all the hard disk drives after all hard disk drives are powered on; dividing all hard disk drives into two or more hard drive groups, each hard drive group includes more than one hard disk drive; sequentially perform link initialization negotiation on each hard drive group by using a port protocol; and in an OOB negotiation process of the link initialization negotiation, by setting the state of an SCSI application layer power state machine, control a motor of each hard disk drive in the hard drive group to enter a spinning state.

Abstract: A method and apparatus for controlling startup of a hard disk drive system, and a storage device. The hard disk drive system includes two or more hard disk drives. The method for controlling startup of a hard disk drive system includes: latching the initialization states of all the hard disk drives after all hard disk drives are powered on; dividing all hard disk drives into two or more hard drive groups, each hard drive group includes more than one hard disk drive; sequentially perform link initialization negotiation on each hard drive group by using a port protocol; and in an OOB negotiation process of the link initialization negotiation, by setting the state of an SCSI application layer power state machine, control a motor of each hard disk drive in the hard drive group to enter a spinning state.

Abstract: An online voltage adjustment circuit for a board power supply, where a first voltage division circuit is coupled in parallel to a first bias resistor, a second voltage division circuit is coupled in parallel to a second bias resistor, and a detection chip obtains an initial output voltage of the board power supply. Based on the initial output voltage and a preset voltage, a control chip controls a first switch on the first voltage division circuit to be on or off, and a second switch on the second voltage division circuit to be on or off. As a result, a feedback value of a feedback pin of the board power supply changes, and then an output voltage of the board power supply changes, thereby adjusting the output voltage of the board power supply.

Abstract: An online voltage adjustment circuit for a board power supply, where a first voltage division circuit is coupled in parallel to a first bias resistor, a second voltage division circuit is coupled in parallel to a second bias resistor, and a detection chip obtains an initial output voltage of the board power supply. Based on the initial output voltage and a preset voltage, a control chip controls a first switch on the first voltage division circuit to be on or off, and a second switch on the second voltage division circuit to be on or off. As a result, a feedback value of a feedback pin of the board power supply changes, and then an output voltage of the board power supply changes, thereby adjusting the output voltage of the board power supply.