Backup power management for computing systems

Patent metadata

Field	Value
Publication number	US-10168756-B2
Application number	US-201615274884-A
Country	US
Kind code	B2
Filing date	Sep 23, 2016
Priority date	Feb 11, 2014
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

Various techniques for managing power backup for computing devices are disclosed herein. In one embodiment, a method includes receiving data representing a backup capacity of one or more backup power units and data representing a backup power profile of one or more processing units sharing the one or more backup power units. A portion of the backup capacity may then be assigned to each of the one or more processing units based at least in part on both the received data representing the backup capacity of the one or more backup power units and the received data representing the profile of the one or more processing units.

First claim

We claim:

1. A computing device sharing one or more backup power units with additional one or more computing devices interconnected by a computer network, the one or more backup power units having a total backup capacity, the computing device comprising:
a processor; and
a memory and one or more storage devices operatively coupled to the processor, the memory containing instructions executable by the processor to cause the processor to perform a process comprising:
receiving, via the computer network, data indicating a value of backup capacity allocated from the total backup capacity to the computing device, the allocated value of backup capacity being a portion of the total backup capacity of the one or more backup power units; and
in response to the received data,
assigning a portion of the allocated value of backup capacity individually to the processor, the memory, and to each of the one or more storage devices; and
when the computing device experiencing a power outage,
initiating a shutdown procedure in response to the power outage;
determining whether the assigned portions of the allocated value of backup capacity to the processor, the memory, and to each of the one or more storage devices are sufficient to complete the initiated shutdown procedure; and
in response to determining that at least one of the assigned portions of the allocated amount of backup capacity is not sufficient to complete the initiated shutdown procedure, requesting an additional amount of backup capacity to be allocated to the computing device.

2. The computing device of claim 1 wherein receiving the data includes receiving the data indicating at least one of a backup power rating or a backup energy rating of the portion of the total backup capacity of the one or more backup power units allocated to the computing device.

3. The computing device of claim 1 wherein the process performed by the processor further includes:
receiving additional data indicating a remaining value of the backup capacity allocated to the computing device;
based on the received additional data:
adjusting at least one of a clock frequency of the processor or a status of acceptable task assignment to the computing device; or
initiating an immediate shutdown sequence for the computing device.

4. The computing device of claim 1 wherein the process performed by the processor further includes receiving additional data indicating a remaining value of the backup capacity allocated to the computing device and based on the received additional data, committing cached data to the memory or one of the storage devices.

5. The computing device of claim 4 wherein the one or more storage devices include one or more solid state drives and/or non-volatile dual in-line memory modules that do not include built-in backup power source.

6. The computing device of claim 4 wherein committing cached data includes initiating a data write to copy data from the memory to at least one of the one or more storage devices.

7. The computing device of claim 4 wherein:
the allocated value of backup capacity is a first backup capacity;
the process performed by the processor further includes:
determining whether the allocated first backup capacity is above a backup threshold;
in response to determining that the first backup capacity is not above the backup threshold, transmitting a request, via the computer network, to adjust the first backup capacity; and
in response to the transmitted request, receiving a second allocated value of backup capacity different than the first backup capacity.

8. The computing device of claim 7 wherein the process performed by the processor further includes adjusting at least one assigned portions of the value of backup capacity individually to the processor, the memory, and to each of the one or more storage devices.

9. A method performed by a server interconnected with other servers by a computer network in a computing system, the servers all sharing a backup power unit having a total backup capacity for the computing system, wherein the method comprising:
receiving, via the computer network, data indicating an amount of backup capacity allocated to the server, the amount of backup capacity representing a portion of the total backup capacity of the backup power unit that the server is allowed to consumed when the server experiencing a power outage;
in response to the received data,
assigning a fraction of the allocated amount of backup capacity to a processor of the server; and
during a power outage experienced by the server,
committing cached data from the memory to a persistent storage device in response to the power outage at the server;
determining whether the assigned fraction of the allocated amount of backup capacity is sufficient to complete committing the cached data; and
in response to determining that the assigned fraction of the allocated amount of backup capacity is not sufficient to complete committing cached data, requesting an additional amount of backup capacity to be allocated to the computing device.

10. The method of claim 9 wherein the processor of the server does not include a built-in backup power source.

11. The method of claim 9 , further comprising based on a remaining portion of allocated amount of backup capacity, adjusting at least one of a clock frequency of the processor or a status of acceptable task assignment to the computing device or initiating a shutdown sequence for the computing device.

12. The method of claim 9 , further comprising based on a remaining portion of allocated amount of backup capacity, committing cached data to the memory or the storage device.

13. The method of claim 9 wherein the storage device includes one or more solid state drives and/or non-volatile dual in-line memory modules that do not include built-in backup power source.

14. The method of claim 9 , further comprising based on a remaining portion of allocated amount of backup capacity, initiating a data write to copy data from the memory to the storage device.

15. The method of claim 9 , further comprising adjusting the assigned fractions of the allocated amount of backup capacity to the processor.

16. A computing device sharing one or more backup power units with additional one or more computing devices interconnected by a computer network, the one or more backup power units having a total backup capacity, the computing device comprising:
a processor; and
a memory operatively coupled to the processor, the memory containing instructions executable by the processor to cause the processor to perform a process comprising:
receiving, via the computer network, data indicating an amount of backup capacity allocated from the total backup capacity to the computing device, the allocated amount of backup capacity being a portion of the total backup capacity of the one or more backup power units;
in response to the received data, assigning a fraction of the allocated amount of backup capacity to the processor; and
during a power outage at the computer device,
initiating a shutdown procedure in response to the power outage at the computing device;
determining whether the assigned fraction of the allocated amount of backup capacity is sufficient to complete the initiated shutdown procedure; and
in response to determining that the assigned fraction of the allocated amount of backup capacity is not sufficient to complete the initiated shutdown procedure, requesting an additional amount of backup capacity to be allocated to the computing device.

17. The computing device of claim

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Khessib Badriddine
• Kelly Bryan
• Santaniello Mark
• Ong Chris
• Siegler John
• Govindan Sriram
• Harris Shaun

Classifications

• G06F9/442

  Shutdown · CPC title

• G06F1/324

  by lowering clock frequency · CPC title

• G06F1/30 Primary

  Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations (for resetting only G06F1/24) · CPC title

• G06F12/0804

  with main memory updating (G06F12/0806 takes precedence) · CPC title

• G06F1/3228

  Monitoring task completion, e.g. by use of idle timers, stop commands or wait commands · CPC title