System and method for redundant object storage

Patent metadata

Field	Value
Publication number	US-9292393-B2
Application number	US-201414461922-A
Country	US
Kind code	B2
Filing date	Aug 18, 2014
Priority date	Apr 6, 2010
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

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 object storage, comprising:
collectively store at least two copies of each of the 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;
monitoring access to each object having a copy stored among the plurality of nodes to determine a frequency of access for each object;
determining a ratio of a first set of objects stored on a specified node of the plurality of nodes to a second set of objects stored on the specified node, the first set of objects including objects accessed at a frequency below a predetermined frequency threshold and the second set of objects including objects accessed at a frequency above the predetermined frequency threshold;
if the ratio exceeds a predetermined ratio, redistributing at least one of the copies of the second set of objects stored on the specified node to a particular node of the plurality of nodes; and
placing the specified node in a reduced-power mode.

2. The method of claim 1 , wherein redistributing at least one of the copies of the second set of objects stored on the specified node to the particular node comprises redistributing copies of the second set of objects such that the specified node includes only copies of the first set of objects.

3. The method of claim 1 , wherein a copy of each of the plurality of objects stored on the specified node in the reduced-power mode is also stored on at least one node in an active-power mode.

4. The method of claim 1 , further comprising:
determining a remaining available capacity of the specified node; and
if the remaining available capacity of the specified node is below a predetermined capacity threshold, redistributing copies of the second set of objects stored on the specified node to the particular node, such that the specified node includes only copies of the first set of objects.

5. The method of claim 1 , further comprising redistributing copies of the second set of objects stored on the specified node to one or more nodes other than the specified node.

6. The method of claim 1 , wherein the plurality of nodes comprises a Redundant Array of Independent Nodes (RAIN).

7. An information handling system comprising:
a processor;
a network interface communicatively coupled to the processor and one or more other networked information handling systems; and
a non-transitory computer-readable medium communicatively coupled to the processor and having stored thereon a program of instructions configured to, when executed by the processor:
collectively store at least two copies of each of a plurality of objects in order to provide redundancy of each of the plurality of objects in the event of a fault of one of the information handling system of the one or more other networked information handling systems;
monitor access to each object having a copy stored on the information handling system to determine a frequency of access for each object having a copy stored on the information handling system;

determine a ratio of a first set of objects stored on the information handling system to a second set of objects stored on the information handling system, the first set of objects including objects accessed at a frequency below a predetermined frequency threshold and the second set of objects including objects accessed at a frequency above the predetermined frequency threshold;
if the ratio exceeds a predetermined ratio, redistribute at least one of the copies of the second set of objects stored on the information handling system to a particular information handling system of the networked information handling systems; and
place the information handling system in a reduced-power mode.

8. The information handling system of claim 7 , wherein redistributing at least one of the copies of the second set of objects stored on the information handling system to the particular information handling system comprises redistributing copies of the second set of objects such that the information handling system includes only copies of the first set of objects.

9. The information handling system of claim 7 , wherein a copy of each of the plurality of objects stored on the information handling system is also stored on one or more other networked information handling systems in an active-power mode.

10. The information handling system of claim 7 , wherein the program of instructions further configured to:
determine a remaining available capacity of the information handling system; and
if the remaining available capacity of the information handling system is below a predetermined capacity threshold, redistribute copies of the second set of objects stored on the information handling system to the particular information handling system such that the information handling system includes only copies of the first set of objects.

11. The information handling system of to claim 7 , wherein the program of instructions is further configured to cause the information handling system to receive copies of objects stored on one or more of the other networked information handling systems and accessed at a frequency below the predetermined frequency threshold.

12. The information handling system of claim 7 , wherein the networked information handling systems comprise a Redundant Array of Independent Nodes (RAIN).

13. 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 one or more other networked information handling systems; and
a non-transitory computer-readable medium communicatively coupled to the processor and having stored thereon instructions executable by the processor to:
collectively store at least two copies of each of a plurality of objects among a plurality of nodes 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;
monitor access to each object having a copy stored among the plurality of nodes to determine a frequency of access for each object;
determine a ratio of a first set of objects stored on a specified node of the plurality of nodes to a second set of objects stored on the specified node, the first set of objects including objects accessed at a frequency below a predetermined frequency threshold and the second set of objects including objects accessed at a frequency above the predetermined frequency threshold;
if the ratio exceeds a predetermined ratio, redistribute at least one of the copies of the second set of objects stored on the specified node to a particular node of the plurality of nodes; and
place the specified node in a reduced-power mode.

14. The system of claim 13 , wherein the instructions to redistribute at least one of the copies of the second set of objects stored on the specified node to the particular node further comprise instructions to redistribute copies of the second set of objects such that the specified node includes only copies of the first set of objects.

15. The system of claim 13 , wherein a copy of each of the plurality of objects stored on the specified node in the reduced-power mode is also stored on at least one node in an active-power mode.

16. The system of claim 13 , wherein each the plurality of nodes further comprises instructions to:
determine a remaining available capacity of the specified node; and
if the remainin

Assignees

• Feder Seth
• Khosrowpour Farzad
• Marks Kevin
• Dell Products Lp

Inventors

• Feder Seth
• Khosrowpour Farzad
• Marks Kevin

Classifications

• G06F11/2046

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

• G06F11/2048

  where the redundant components share neither address space nor persistent storage · CPC title

• G06F11/2043

  where the redundant components share a common memory address space · CPC title

• G06F11/2094

  Redundant storage or storage space (G06F11/2056 takes precedence) · CPC title

• G06F17/30578

  Physics · mapped topic