Storage device and method for powering storage device

1. A storage device powered by a main power supply, comprising:

a processor;

a baseboard management controller (BMC);

a plurality of disks;

a plurality of backup power supplies including a first backup power supply and a second backup power supply,

wherein the first backup power supply is coupled to at least the processor and the BMC,

wherein the second backup power supply is coupled to at least the BMC,

wherein the second backup power supply is different from the first backup power supply, and

wherein the BMC is configured to:

in response to detection of a failure of the main power supply, control the plurality of backup power supplies to cause and enable the first backup power supply to supply power to at least the processor and to cause and enable the second backup power supply to supply power to at least the BMC.

2. The storage device according to claim 1 , further comprising:

a memory; and

a third backup power supply arranged in at least one of the plurality of disks, the at least one disk being used to store data from the memory.

3. The storage device according to claim 2 , wherein the at least one disk comprises a disk box and a disk body, and the dimension of the disk box is larger than the dimension of the disk body.

4. The storage device according to claim 1 , wherein the first and second backup power supplies are further coupled to the main power supply in order to be charged by the main power supply.

5. The storage device according to claim 1 , wherein the BMC is configured to:

in response to detecting a failure of the main power supply, enable at least one of the first and second backup power supplies to power the storage device.

6. The storage device according to claim 1 , wherein the first backup power supply is enabled to only power the processor, and the second backup power supply is enabled to only power the BMC.

7. The storage device according to claim 6 , wherein a battery capacity of the first backup power supply is associated with a power level of the processor, and a battery capacity of the second backup power supply is associated with a power level of the BMC.

8. The storage device according to claim 1 , further comprising:

a memory; and

an input/output (I/O) controller, the first backup power supply being further coupled to the memory, and the second backup power supply being further coupled to the I/O controller.

9. A method for powering a storage device, comprising:

detecting, by a baseboard management controller (BMC), a failure of a main power supply of a storage device, the storage device including at least a processor, a plurality of disks, a plurality of backup power supplies including a first backup power supply and a second backup power supply, the second backup power supply being different from the first backup power supply; and

in response to detecting the failure of the main power supply, controlling, by the BMC, the plurality of backup power supplies,

wherein controlling the plurality of backup power supplies includes causing and enabling, by the BMC, the first backup power supply to power at least the processor, and causing and enabling, by the BMC, the second backup power supply to power at least the BMC.

10. The method according to claim 9 , further comprising:

in response to detecting the failure of the main power supply, enabling a third backup power supply in the storage device to power at least one of the plurality of disks in order to store data in a memory of the storage device into the at least one disk.

11. The method according to claim 10 , wherein the at least one disk comprises a disk box and a disk body, and the dimension of the disk box is larger than the dimension of the disk body.

12. The method according to claim 9 , wherein the enabling the first backup power supply to at least power the processor comprises enabling the first backup power supply to only power the processor, and the enabling the second backup power supply to at least power the BMC comprises enabling the second backup power supply to only power the BMC.

13. The method according to claim 12 , wherein a battery capacity of the first backup power supply is selected based on a power level of the processor, and a battery capacity of the second backup power supply is selected based on a power level of the BMC.