Use the total data provided by the Performance Monitor to monitor the I/O activity of a specific and a specific . The total I/O data can help you identify possible high-traffic I/O areas.
Identify actual I/O patterns to the individual logical drives, and compare those patterns with the expectations based on the application. If a particular controller has considerably more I/O activity, you might want to move logical drives to the other controller in the .
You might notice a disparity in the total I/Os (workload) of controllers. An example is the workload of one controller is heavy or is increasing over time while that of the other controller is lighter or more stable. In this case, you might want to change the of one or more logical drives to the controller with the lighter workload. Use the total I/O statistics of the logical drive to determine which logical drives to move.
Important:
The controller owner of a in a is determined by the controller owner of the in the primary storage subsystem. If the controller owner of the primary logical drive is controller A, the current owner of the associated secondary logical drive in the secondary storage subsystem is also controller A. Current ownership changes on the primary side automatically propagate to corresponding current ownership changes on the secondary side.