US 8,046,764 B2Granted

Redistribution of unused resources assigned to a first virtual computer having usage below a predetermined threshold to a second virtual computer

AssigneeHitachi, Ltd.

InventorsTakashi Yamakabe, Shuji Fujino

Life of this patent

Estimating the term…

Loading patent…

Abstract

A computer resource control system for running business applications on virtual computers within a business computer by using computer, virtual computer, network, and storage resources, the system comprises a collection process section for periodically collecting the dynamically changing information about the use of each resource when business applications run on the virtual computers within the business computer; a resource recovery process section for calculating the amounts of resources required for the operations of the business applications periodically in accordance with the dynamically changing information about the use of each resource, which is gathered by the collection process section, allocating the calculated amounts of resources to the resources of each virtual computer, and recovering any extra resources; and a resource allocation process section for allocating the extra resources, which are recovered by the resource recovery process section, to the virtual computers in accordance with the priorities of the business applications.

Claims8

Dependent claims

A computer resource control method for executing business applications on virtual computers within a computer including resources which are the computer itself, a network, and storage, the computer resource control method executed by the computer, comprising the steps of:

allocating at least part of a first predetermined available amount of the resources to a first virtual computer for executing at least one business application;
periodically gathering a use ratio of the part of the resources allocated to the first virtual computer in executing the first one of the at least one business application to the first predetermined available amount of the resources;
calculating amounts of unused resources not used by the first virtual computer for the execution of the first business application on the first virtual computer, based on a comparison of the gathered use ratio of the resources with a predetermined threshold value;
if the gathered use ratio of the resources is less than the predetermined threshold value, de-allocating a second predetermined amount of the allocated resources from the first virtual computer, a value of the second predetermined amount being defined as a constant value and being smaller than a value of both the first predetermined available amount and the calculated amount;
collecting performance results of the first business application executed on the first virtual computer;
determining whether the performance of the first business application executed on the first virtual computer is affected according to de-allocating from the first virtual computer the second predetermined amount of the resources, based on the collected performance results of the first business application;
re-allocating, to the first virtual computer, the second predetermined amount of the resources de-allocated from the first virtual computer, in order to restore the previous state of the performance of the first business application, if the performance of the first business application executed on the first virtual computer is affected as a result of the second predetermined amount of the resources being de-allocated from the first virtual computer;
and
repeating said de-allocating if the performance of the first business application executed on the first virtual computer is not affected as the result of the second predetermined amount of the resources being de-allocated from the first virtual computer.

6 more elements

A computer resource control method for executing a business application on a first virtual computer and executing another business application on a second virtual computer within a computer including resources which are the computer itself, a network, and storage, the computer resource control method executed by the computer, comprising the steps of:

allocating at least part of a first predetermined available amount of the resources to the first virtual computer for executing at least one first business application and to the second virtual computer for executing at least one second business application;
periodically gathering a use ratio of the part of the resources allocated to the first virtual computer in executing the at least one first business application to the first predetermined available amount of the resources;
calculating amounts of unused resources not used by the first virtual computer for the execution of the first business application, based on a comparison of the gathered use ratio of the part of the resources allocated to the first virtual computer with a predetermined threshold value;
if the gathered use ratio of the resources is less than the predetermined threshold value, de-allocating a second predetermined amount of the allocated resources from the first virtual computer, and a value of the second predetermined amount being defined as a constant value and being smaller than a value of both the first predetermined available amount and the calculated amount;
collecting performance results of the first business application executed on the first virtual computer;
determining whether the performance of the first business application executed on the first virtual computer is affected according to the de-allocating from the first virtual computer the second predetermined amount of the resources, based on the collected performance results of the first business application;
collecting performance results of the second business application on the second virtual computer;
determining whether the performance of the second business application executed on the second virtual computer is affected according to the allocating to the second virtual computer the second predetermined amount of the resources, based on the collected performance results of the second business application;
re-allocating, to the first virtual computer, the second predetermined amount of unused resources de-allocated from the first virtual computer, in order to restore the previous state of the first business application, if the performance results indicate that the first business application is affected as a result of the second predetermined amount of the resources being de-allocated from the first virtual computer;
allocating to the second virtual computer the second predetermined amount of unused resources deleted from the first virtual computer;
collecting another performance result of the second virtual computer;
and
de-allocating from the second virtual computer the second predetermined amount of unused resources allocated to the second virtual computer, if the another performance result indicates that the performance of the second virtual computer is not affected.

10 more elements

A computer resource control system for executing business applications on virtual computers within a computer including resources which are the computer itself, a network, and storage, the computer resource control system realized by the computer, comprising:

a resource allocation means for allocating at least part of a first predetermined available amount of the resources to a first virtual computer for executing at least one business application;
a gathering means for periodically gathering a use ratio of the part of the resources allocated to the first virtual computer in executing a first of the at least one first business application to the predetermined available amount of the resources;
a resource recovery means for calculating amounts of unused resources not used by the first virtual computer for the execution of the first business application based on a comparison of the gathered use ratio of the resources with a predetermined threshold value;
if the gathered use ratio of the resources is less than the predetermined threshold value, a de-allocating means for de-allocating a second predetermined amount of the allocated resources from the first virtual computer, and a value of the second predetermined amount being defined as a constant value and being smaller than a value of both the first predetermined available amount and the calculated amount;
a first collecting means for collecting performance results of the first business application executed on the first virtual computer;
a determining means for determining whether the performance of the first business application executed on the first virtual computer is affected according to de-allocating from the first virtual computer the second predetermined amount of the resources, based on the collected performance results of the first business application;
said allocating means re-allocating, to the first virtual computer, the second predetermined amount of the resources de-allocated from the first virtual computer, in order to restore the previous state of the performance of the first business application, if the performance of the first business application executed on the first virtual computer is affected as a result of the second predetermined mount of the resources being de-allocated from the first virtual computer;
and
said de-allocating means for repeating de-allocating of the second predetermined amount of the allocated resources from the first virtual computer if the performance of first business application executed by the first virtual computer is not affected as the result of the second predetermined amount of the resources being de-allocated from the first virtual computer.

6 more elements

Dependencies are inferred from the claim text.