1. A method executed on a computing device for providing optimized datacenter management by centralized task execution, the method comprising: registering with a DMS data storage one or more adapters; registering at least one of tasks and incident remediations with the DMS data storage as action mappings; including a remote manageability layer in an action wherein the remote manageability layer varies based on one of the adapters and one of the tasks associated with the action; mapping an alert type of a detected alert to an action type of the action associated with the alert to reference the action throughout a lifecycle of the alert; enabling initiation of the action by one of an application and a service through a dispatcher application programming interface (API) using an action mapping identifier associated with at least one from a set of: a source type, an action type, a rule, and an initialization parameter governing a behavior of the action mappings; scheduling the initiated action for execution by a scheduler service; executing the scheduled action by an execute ready service; invoking an instance of the scheduled action by an action invoker application through a stateless process providing data for creating and invoking the instance of the scheduled action to the action invoker application, the action invoker application working against one or more interfaces of the action instance and an instance of an action initiator that are created using an inversion of control approach enabling the adapters to be executed and integrated without DMS code changes; and employing automatic task sequencing on individual target servers to ensure check-pointed changes to the target servers.