If you click OK, a long running task is created. This task takes approximately 3 minutes to complete. You cannot change the power control mode again until this task completes. After the power control mode change completes, the storage unit power state might change to ensure that the power state reflects the state that is requested by the attached zSeries power control interfaces.
Select OK to change the power control mode to zSeries, or click Cancel to cancel the operation without changing the power control mode.