SYSTEM AND METHOD FOR MANAGING RESOURCES

• US 20080034093A1
• Filed: 01/30/2007
• Published: 02/07/2008
• Est. Priority Date: 08/01/2006
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Sutou, Hiromi
• Granted Patent: US 8,046,466 B2
• Time in Patent Office: Days
• US Class Current: 709/226
• CPC Class Codes: G06F 9/5083 Techniques for rebalancing the load in a distributed system

Abstract

A resource management system including a plurality of computer systems and providing services through operations of task applications by combining the plurality of the computer systems, which comprises: a storage which is included in at least one of the computer systems for storing information for identifying the computer systems which execute the task applications, respectively, and resource utilization rate information which includes utilization rates of resources configuring the respective computer systems; and an effected range investigation unit which is included in at least one of the computer systems and obtains utilization rates of additional resources required by a task application from the resource utilization rate information when the effected range investigation unit obtains information that the task application requires the additional resources of the computer systems; and sums utilization rates of resources configuring newly configured computer systems.

Claims

1. A resource management system including a plurality of computer systems and providing services through operations of task applications by combining the plurality of the computer systems, the resource management system comprising:

a storage which is included in at least one of the computer systems for storing information for identifying the computer systems which execute the task applications, respectively, and resource utilization rate information which includes utilization rates of resources configuring the respective computer systems; and

an effected range investigation unit which is included in at least one of the computer systems and obtains utilization rates of additional resources required by a task application from the resource utilization rate information when the effected range investigation unit obtains information that the task application requires the additional resources of the computer systems; and

sums utilization rates of resources configuring newly configured computer systems.

2. The resource management system according to claim 1, further comprising:

a policy control unit in at least one of the computer systems for changing an assignment of each resource of the computer systems based on a policy action when a utilization rate, which is an output from the effected range investigation unit, of the each resource of the computer systems is equal to or less than a predetermined threshold value and requirements of Service Level Agreement are achieved, by requesting the utilization rate of the each resource of the computer systems to the effected range investigation unit when a task application requests additional resources of the computer systems based on the policy action which is included in the policy information,

wherein the storage further stores policy information which includes the policy action which is information defining a change of the assignment of the each resource of the computer systems for the task applications.

3. The resource management system according to claim 2,

wherein the policy control unit updates information, which is included in the resource utilization rate information, for identifying the computer systems which execute the task applications, respectively, based on the policy action when the assignment of the each resource is changed.

4. The resource management system according to one of claims 1 and 2, further comprising a utilization rate collection unit, in at least one of the computer systems, which updates utilization rates included in the resource utilization rate information by obtaining a utilization rate of each resource of the computer systems.

5. The resource management system according to claim 4,

wherein the utilization rate collection unit obtains the utilization rate of the each resource of the computer systems before the effected range investigation unit utilizes the resource utilization rate information.

6. The resource management system according to claim 4,

wherein when there is a utilization rate which is larger than the predetermined threshold value with respect to the utilization rate of the each resource of the computer systems in the policy information, the policy control unit selects a policy action which is configured to solve problems to be caused by the utilization rate which is larger than the predetermined threshold value.

7. The resource management system according to claim 4,

wherein the resource utilization rate information includes a defined utilization rate of each resource and an obtained utilization rate of each resource obtained by the utilization rate collection unit,

wherein the effected range investigation unit uses the defined utilization rate until a processing number of the system reaches a given number;

and uses the obtained utilization rate after the given number.

16. The resource management system according to claim 2, which is configured to sum all utilization rates of each resource of the newly configured computer systems by the effected range investigation unit and evaluates whether or not the all utilization rate are equal to or less than the predetermined value;

and obtains information of a network configuration for executing the task applications assigned to the computer systems, then, determines a computer system executing a load dispersion processing as a policy action target.

8. A resource management method including a plurality of computer systems and providing services through operations of task applications by combining the plurality of the computer systems, the resource management method comprising steps of:

obtaining utilization rates of additional resources required by a task application from resource utilization rate information; and

summing utilization rates of resources configuring newly configured computer systems,

when a resource management system, which stores information for identifying the computer systems executing the task applications, respectively, and the resource utilization rate information which includes utilization rates of resources configuring the respective computer systems in a storage, obtains information requesting the additional resources of the computer systems from the task application.

9. The resource management method according to claim 8, further comprising a step of:

storing policy information which includes a policy action which is information defining a change of an assignment of each resource of the computer systems for the task applications in the storage of the resource management system,

wherein the resource management method comprises steps of;

summing the utilization rate of the each resource of the computer systems when a task application requests an additional resource of the computer systems based on the policy action included in the policy information; and

changing the assignment of the each resource of the computer systems based on the policy action when a sum of the utilization rate of the each resource is equal to or less than a predetermined threshold value and requirements of Service Level Agreement are achieved.

10. The resource management method according to claim 9,

wherein when the resource management system changes the assignment of the each resource, the resource management method comprises a step of:

updating information, which is included in the resource utilization rate information, for identifying the computer systems executing the respective task applications based on the task application.

11. The resource management method according to claim 8,

wherein the resource management method comprises a step of:

updating a resource utilization rate included in the resource utilization rate information by obtaining the resource utilization rate of each resource from the computer systems.

12. The resource management method according to claim 11,

wherein the resource management method comprises a step of:

obtaining the resource utilization rate of the each resource from the computer systems before utilizing the resource utilization rate information.

13. The resource management method according to claim 11,

wherein when there is a utilization rate which is larger than the predetermined threshold value with respect to the utilization rate of each resource of the computer systems in the policy information, the resource management method comprises a step of:

selecting a policy action configured to solve problems to be caused by the utilization rate which is larger than the predetermined threshold value.

14. The resource management method according to claim 11,

wherein the resource management method includes a defined utilization rate of each resource and an obtained utilization rate of each resource in the resource utilization rate information, and the method comprises a step of:

using the defined utilization rate until a processing number of the method reaches a given number; and

uses the obtained utilization rate after the given number.

15. A program for causing a computer to function as the resource management system for executing the resource management method according to claim 8.