9.3 Controlling the Execution of Management Action

This section describes how to control the execution of the management actions.

You can control the execution of management actions by restraining the execution of identical management actions at regular intervals and setting the maximum number of concurrent executions. In this way, you can prevent the repeated execution of identical management actions and the concentration of the execution of the Management actions.

The execution of management action refers to the process from the execution of the command, specified as the Management action, until the command terminates or is timed out.

The following table describes the method of controlling the execution of the Management actions:

Table 9‒2: Controlling the execution of management action

Method of controlling	Description
Restraint time control	After executing the Management action, the execution of identical management actions is restrained within a fixed time. As a result, the management actions to be executed for the management event occurring before a fixed time are consolidated.
Controlling the number of concurrent executions	Restricts the number of concurrent executions of the identical management actions. As a result, it becomes possible to prevent repeated execution of the identical management actions during the execution of the management action. The number of synchronous executions is applied to each management action ID.

When the two methods mentioned above are specified at the same time, the execution of management actions is restrained within the restraint time even when the maximum number of concurrent executions is not reached.

The methods of controlling the management action are explained below with the help of examples:

• Example of setup-1

  Assume the following settings:

  • Execution time of the management action: 5 seconds

  • Restraint time: 10 seconds

  • Maximum number of concurrent executions: 2

  The following figure illustrates an example of controlling the management actions:

  Figure 9‒2: Example of controlling the management actions-1

  In the example illustrated in this figure, after action 1, the execution of action 2 and action 3 is restrained because the execution of identical actions is restrained for 10 seconds. Action 4 can be executed after the restraint time has elapsed.

• Setup example-2

  Assume the following settings:

  • Execution time of the management action: 5 seconds

  • Restraint time: 0 seconds (not restrained)

  • Maximum number of concurrent executions: 2

  The following figure illustrates an example of controlling the management actions:

  Figure 9‒3: Example of controlling the management actions-2

  In the example illustrated in this figure, there is no restriction of restraint time, and therefore, action 2 is executed after the execution of action 1. At this time, the execution of action 3 is restrained, because the number of concurrent executions of the identical management actions has reached the maximum value. Action 4 can be executed after the execution of action 1 is complete. Action 5 and action 6 are controlled in the same way as action 2 and action 3.

• Setup example-3

  Assume the following settings:

  • Execution time of the management action: 12 seconds

  • Restraint time: 3 seconds

  • Maximum number of concurrent executions: 2

  The following figure illustrates an example of controlling the management actions:

  Figure 9‒4: Example of controlling the management actions-3

  In the example illustrated in this figure, execution of action 2 is restrained because execution of identical management actions is restrained for 3 seconds after the execution of action 1. Execution of action 4 is restrained after the execution of action 3, because the number of concurrent executions of identical management actions has reached the maximum value. Action 5 can be executed after the execution of action 1 is complete.

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