System and method for redundant object storage

Patent metadata

Field	Value
Publication number	US-9746900-B2
Application number	US-201615040638-A
Country	US
Kind code	B2
Filing date	Feb 10, 2016
Priority date	Apr 6, 2010
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

Systems and methods for redundant object storage are disclosed. A method may include storing at least two copies of each of a plurality of objects among a plurality of nodes communicatively coupled to one another in order to provide redundancy of each of the plurality of objects in the event of a fault of one of the plurality of nodes. The method may also include monitoring access to each object to determine a frequency of access for each object. The method may additionally include redistributing one or more of the copies of the objects such that at least one particular node of the plurality of nodes includes copies of only objects accessed at a frequency below a predetermined frequency threshold based on the determined frequency of access for each object. The method may further include placing the at least one particular node in a reduced-power mode.

First claim

What is claimed is:

1. A method for redundant data object storage, comprising:
monitoring respective access to at least two copies of a data object stored among a plurality of information handling systems communicatively coupled together;
determining a frequency of access for each copy of the data object based on the monitoring;
including the data object in a first set if the frequency of access is below a predetermined frequency threshold, otherwise including the data object in a second set;
for data objects stored on a first information handling system in the plurality of information handling systems, determining a ratio of a first size of the first set to a second size of the second set; and
setting, by a microcontroller of a processor of the first information handling system, a reduced-power mode for the first information handling system based on the determined ratio.

2. The method of claim 1 , wherein setting the reduced-power mode for the first information handling system further comprises:
determining that the ratio exceeds a predetermined value; and
redistributing the second set from the first information handling system to a second information handling system included in the plurality of information handling systems if the ratio exceeds the predetermined value.

3. The method of claim 1 , wherein the first size of the first set includes data objects for which a copy is stored on a different one of the plurality of information handling systems than the first information handling system.

4. The method of claim 1 , wherein setting the reduced-power mode for the first information handling system further comprises redistributing the second set from the first information handling system to a second information handling system included in the plurality of information handling systems in response to a command received from a system administrator.

5. The method of claim 1 , wherein setting the reduced-power mode for the first information handling system further comprises:
determining a first available storage capacity of the first information handling system; and
redistributing the second set from the first information handling system to a second information handling system included in the plurality of information handling systems if the first available storage capacity is below a predetermined capacity threshold.

6. The method of claim 1 , wherein the predetermined frequency threshold is based on a number of access events for the data object within a time period.

7. The method of claim 1 , wherein the reduced-power mode specifies reducing power consumption of a storage resource.

8. The method of claim 1 , wherein the reduced-power mode specifies reducing power consumption of a processor.

9. The method of claim 1 , wherein the plurality of information handling systems are a redundant array of independent nodes.

10. A system for redundant object storage, comprising a plurality of nodes communicatively coupled to one another, wherein each of the plurality of nodes further comprises:
a processor;
a network interface communicatively coupled to the processor; and
a non-transitory computer-readable medium communicatively coupled to the processor and having stored thereon instructions executable by the processor to:
monitor respective access to at least two copies of a data object stored among the plurality of nodes;
determine a frequency of access for each copy of the data object based on the monitored access;
include the data object in a first set if the frequency of access is below a predetermined frequency threshold, otherwise include the data object in a second set;
for data objects stored on a first node in the plurality of nodes, determine a ratio of a first size of the first set to a second size of the second set; and
set a reduced-power mode for the first node based on the determined ratio by a microcontroller of the processor.

11. The system of claim 10 , wherein the instructions to set the reduced-power mode for the first node further comprise instructions to:
determine that the ratio exceeds a predetermined value; and
redistribute the second set from the first node to a second node included in the plurality of nodes if the ratio exceeds the predetermined value.

12. The system of claim 10 , wherein the first size of the first set includes data objects for which a copy is stored on a different node of the plurality of nodes than the first node.

13. The system of claim 10 , wherein the instructions to set the reduced-power mode for the first node further comprise instructions to:
redistribute the second set from the first node to a second node included in the plurality of nodes in response to a command received from a system administrator.

14. The system of claim 10 , wherein the instructions to set the reduced-power mode for the first node further comprise instructions to:
determine a first available storage capacity of the first node; and
redistribute the second set from the first node to a second node included in the plurality of nodes if the first available storage capacity is below a predetermined capacity threshold.

15. The system of claim 10 , wherein the predetermined frequency threshold is based on a number of access events for the data object within a time period.

16. The system of claim 10 , wherein the reduced-power mode specifies reducing power consumption of a storage resource.

17. The system of claim 10 , wherein the reduced-power mode specifies reducing power consumption of a processor.

18. The system of claim 10 , wherein the plurality of nodes are a redundant array of independent nodes.

Assignees

• Dell Products Lp

Inventors

• Feder Seth
• Khosrowpour Farzad
• Marks Kevin

Classifications

• G06F3/0647

  Migration mechanisms · CPC title

• G06F17/30306

  Physics · mapped topic

• Y02B60/1217

  Cross-Sectional Technologies · mapped topic

• G06F17/30578

  Physics · mapped topic

• G06F11/2046

  where the redundant components share persistent storage (G06F11/2043 takes precedence) · CPC title