Granted Patent B1

US 8,065,560 · App. 12/396,999 · Granted Nov 22, 2011

Assignee: Symantec Corporation

Abstract

Claims (104)

1. A method comprising:

providing high availability in a datacenter by optimizing power consumption of the datacenter, wherein

the optimizing comprises

upon execution of an application at a target node from a plurality of nodes in the datacenter,

selecting a failover target node from the plurality of nodes, wherein

 the application is failed over to the failover target node, if a failure in the target node is detected,

 the execution results in the application being one of a plurality of online applications, and

 each of the online applications is online by virtue of being executed on at least one of the plurality of nodes, and

reserving a failover capacity of at least one resource at the failover target node, wherein

 the failover capacity is one of a plurality of failover capacities, and

 each of the plurality of failover capacities corresponds to one of the plurality of online applications,

consolidating the plurality of failover capacities, and

releasing a free node of the at least one of the plurality of nodes, if the consolidating results in none of the online applications executing on the free node and none of the plurality of failover capacities being reserved on the free node, wherein

the releasing results in the node being powered down.

2. The method of claim 1 , further comprising:

determining the failover capacity to be reserved on the failover target node.

3. The method of claim 2 , wherein

the failover target node is in a running state.

4. The method of claim 1 , wherein

the reserving of the failover capacity is performed such that disruption of a lower priority application at the failover target node is avoided.

5. The method of claim 4 , wherein

the failover capacity does not exceed an available capacity of the at least one resource of the failover target node.

6. The method of claim 4 , wherein

a required capacity for operating at least one lower priority application is available.

7. The method of claim 1 , further comprising:

detecting the failure; and

in response to the detecting the failure, failing over the application to the failover target node, wherein

the failing over uses the reserved failover capacity of the at least one resource.

8. The method of claim 7 , wherein failing over the application further comprises:

instructing the target node to offline the application; and

migrating the application to the failover target node.

9. The method of claim 7 , further comprising:

selecting another failover target node from the plurality of nodes.

10. The method of claim 1 , further comprising:

monitoring the plurality of nodes, and

selecting another failover target node, wherein

the selecting causes the another failover target node to act as a replacement for the failover target node.

11. The method of claim 1 , further comprising:

instructing at least one other node of the plurality of nodes to power down, wherein

the at least one other node is not currently executing an online application,

the online application is an application that is currently executing, and

the at least one other node is a one of the plurality of nodes other than the target node, and

the failover target node.

12. The method of claim 1 , further comprising:

identifying a node of the plurality of nodes that is other than

the target node, and

the failover target node.

13. The method of claim 1 , further comprising:

monitoring the plurality of nodes;

detecting an offlined application, wherein

the detecting is based on a result from the monitoring;

performing the consolidating, as a result of the detecting.

14. An apparatus comprising:

datacenter software, wherein

the datacenter software is stored in a non-transitory memory,

the datacenter software is configured to be executed by at least one processor to:

provide high availability in a datacenter by optimizing power consumption in the datacenter, and

optimize the power consumption by virtue of being configured to select a target node of a plurality of nodes in a datacenter to execute an application; and

a manager, wherein

the manager is stored in the non-transitory memory,

the manager is configured to be executed by the at least one processor to:

upon execution of an application at a target node of a plurality of nodes in the datacenter,

select a failover target node from the plurality of nodes, wherein

 the application is failed over to the failover target node, if a failure in the target node is detected,

 the execution results in the application being one of a plurality of online applications, and

 each of the online applications is online by virtue of being executed on at least one of the plurality of nodes, and

reserve a failover capacity of at least one resource at the failover target node, wherein

 the failover capacity is one of a plurality of failover capacities, and

 each of the plurality of failover capacities corresponds to one of the plurality of online applications,

consolidate the plurality of failover capacities, and

release a free node of the at least one of the plurality of nodes, if the consolidation results in none of the online applications executing on the free node and none of the plurality of failover capacities being reserved on the free node, wherein

the release results in the node being powered down.

15. The apparatus of claim 14 , wherein the failover target node is in a running state.

16. The apparatus of claim 14 , wherein

the manager is configured to be executed by the at least one processor further to:

detect an offline application, and

release host computer by virtue of being further configured to consolidate a plurality of reserved failover capacities for a plurality of online applications to free up a host computer,

the offline application is offline by virtue of not being executed, and

the host computer is to be powered down.

17. The apparatus of claim 14 , wherein

the failover capacity does not disrupt a lower priority application at the failover target node.

18. A system comprising:

providing high availability and optimizing power consumption within a datacenter a server, comprising

datacenter software, wherein

the datacenter software is configured to provide high availability in a datacenter by optimizing power consumption in the datacenter, and

the datacenter software is configured to optimize the power consumption by virtue of being configured to select a target node from a plurality of nodes in a datacenter to execute an application, and

a manager, wherein

the manager is configured to

upon execution of an application at a target node of a plurality of nodes in the datacenter,

 select a failover target node from the plurality of nodes, wherein

 the application is failed over to the failover target node, if a failure in the target node is detected,

 the execution results in the application being one of a plurality of online applications, and

 each of the online applications is online by virtue of being executed on at least one of the plurality of nodes, and

 reserve a failover capacity of at least one resource at the failover target node, wherein

 the failover capacity is one of a plurality of failover capacities, and

 each of the plurality of failover capacities corresponds to one of the plurality of online applications,

consolidate the plurality of failover capacities, and

release a free node of the at least one of the plurality of nodes, if the consolidating results in none of the online applications executing on the free node and none of the plurality of failover capacities being reserved on the free node, wherein

 the releasing results in the node being powered down; and

a plurality of nodes coupled to the server and hosted on a plurality of computers, comprising at least one resource for executing the application.

19. The system of claim 18 , wherein

the datacenter software is configured to, in response to a failure at the target node, failover the application to the failover target node using the reserved failover capacity of the at least one resource.

20. The system of claim 18 , wherein

the manager is configured to select another failover target node from the plurality of nodes.

Assignments (11)