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Set automatic load balancing

The Automatic Load Balancing feature ensures that incoming I/O traffic from the hosts is dynamically managed and balanced across both controllers. This feature is enabled by default, but you can disable it from System Manager .

About this task

When Automatic Load Balancing is enabled, it performs the following functions:

  • Automatically monitors and balances controller resource utilization.

  • Automatically adjusts volume controller ownership when needed, thereby optimizing I/O bandwidth between the hosts and the storage array.

You might want to disable Automatic Load Balancing on your storage array for the following reasons:

  • You do not want to automatically change a particular volume's controller ownership to balance workload.

  • You are operating in a highly tuned environment where load distribution is purposefully set up to achieve a specific distribution between the controllers.

  1. Select Settings > System .
  2. Scroll down to Additional Settings , and then click Enable/Disable Automatic Load Balancing .

    The text below this option indicates whether the feature is currently enabled or disabled.
    A confirmation dialog opens.
  3. Confirm by clicking Yes to continue.
    By selecting this option, you toggle the feature between enabled/disabled.
    Note
    If this feature is moved from disabled to enabled, the Host Connectivity Reporting feature is automatically enabled as well.