Power management and monitoring for storage devices

Patent metadata

Field	Value
Publication number	US-9727267-B1
Application number	US-201615277524-A
Country	US
Kind code	B1
Filing date	Sep 27, 2016
Priority date	Sep 27, 2016
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

In one embodiment, a command for a storage device may be received, wherein the command comprises a plurality of stages. Power for the plurality of stages of the command may be dynamically allocated, wherein power for a first stage of the command is allocated first, and power for each remaining stage of the command is allocated after a preceding stage is performed.

First claim

What is claimed is:

1. An apparatus comprising:
a non-volatile data storage;
a storage controller to:
receive a command for the data storage, wherein the command comprises a plurality of stages; and
dynamically allocate power for the plurality of stages of the command, wherein power for a first stage of the command is allocated first, and power for each remaining stage of the command is allocated after a preceding stage is performed.

2. The apparatus of claim 1 , wherein the storage controller configured to dynamically allocate power for the plurality of stages of the command is further configured to:
allocate power for the first stage of the command;
initiate performance of the first stage of the command;
allocate power for a second stage of the command;
initiate performance of the second stage of the command; and
release power allocated for the command.

3. The apparatus of claim 2 , further comprising:
a first interface to request a power allocation for the first stage of the command;
a second interface to request a power allocation for the second stage of the command; and
a third interface to request a power release for the command.

4. The apparatus of claim 2 , wherein the storage controller configured to allocate power for the second stage of the command is further configured to adjust the power allocated for the first stage of the command.

5. The apparatus of claim 1 , wherein power for the first stage of the command is allocated after allocating power for a second stage of one or more pending commands.

6. The apparatus of claim 1 , wherein the command comprises a storage access operation and a data processing operation.

7. The apparatus of claim 1 , wherein the storage controller is further configured to:
determine that the first stage of the command is complete;
determine that a power allocation is pending for a second stage of a different command;
release the power allocated for the first stage of the command; and
allocate power for the second stage of the different command.

8. The apparatus of claim 1 , wherein the storage controller is further configured to monitor power usage for each type of operation performed by the apparatus.

9. The apparatus of claim 8 , wherein the storage controller is further configured to:
accumulate the power usage for each type of operation performed by the apparatus;
determine, based on the accumulated power usage, an average power used by the apparatus; and
throttle power usage when the average power exceeds a target power usage.

10. The apparatus of claim 9 , wherein the accumulated power usage for each type of operation performed by the apparatus comprises power usage for storage access operations, data processing operations, and system event operations.

11. The apparatus of claim 9 , wherein the storage controller is further configured to report the accumulated power usage for each type of operation performed by the apparatus.

12. A method comprising:
receiving a command for a storage device, wherein the command comprises a plurality of stages; and
dynamically allocating power for the plurality of stages of the command, wherein power for a first stage of the command is allocated first, and power for each remaining stage of the command is allocated after a preceding stage is performed.

13. The method of claim 12 , wherein dynamically allocating power for the plurality of stages of the command comprises:
allocating power for the first stage of the command;
performing the first stage of the command;
allocating power for a second stage of the command;
performing the second stage of the command; and
releasing power allocated for the command.

14. The method of claim 13 , further comprising:
requesting, using a first interface, a power allocation for the first stage of the command;
requesting, using a second interface, a power allocation for the second stage of the command; and
requesting, using a third interface, a power release for the command.

15. The method of claim 13 , wherein allocating power for the second stage of the command comprises adjusting the power allocated for the first stage of the command.

16. The method of claim 12 , further comprising:
determining that the first stage of the command is complete;
determining that a power allocation is pending for a second stage of a different command;
releasing the power allocated for the first stage of the command; and
allocating power for the second stage of the different command.

17. The method of claim 12 , further comprising monitoring power usage for each type of operation performed by the storage device.

18. The method of claim 17 , further comprising:
accumulating the power usage for each type of operation performed by the storage device;
determining, based on the accumulated power usage, an average power used by the storage device; and
throttling power usage when the average power exceeds a target power usage.

19. A system comprising:
a processor;
a storage device comprising:
a non-volatile data storage;
a storage controller to:
receive a command for the storage device, wherein the command comprises a plurality of stages; and
dynamically allocate power for the plurality of stages of the command, wherein power for a first stage of the command is allocated first, and power for each remaining stage of the command is allocated after a preceding stage is performed.

20. The system of claim 19 , further comprising:
a display communicatively coupled to the processor;
a network interface communicatively coupled to the processor; or
a battery coupled to the processor.

Assignees

• Intel Corp

Inventors

• Sebastian Donia
• Ramage Simon D
• Gittens Curtis A
• Nelson Scott
• Carlton David B
• Schmidt Kai-Uwe

Classifications

• G06F3/0688

  Non-volatile semiconductor memory arrays · CPC title

• G06F3/0625 Primary

  Power saving in storage systems · CPC title

• G06F3/0659

  Command handling arrangements, e.g. command buffers, queues, command scheduling · CPC title

• G06F3/067

  Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS] · CPC title

• G06F3/0653

  Monitoring storage devices or systems · CPC title