Enabling and disabling MP unit auto assignment

Use this procedure to enable or disable auto assignment of a specific MP unit.

When auto assignment is enabled, the MP unit can be automatically assigned to resources in the storage system (logical devices, external volumes, and journal volumes). When auto assignment is disabled, the MP unit cannot be automatically assigned to resources in the storage system. For details about how MP units are assigned to resources, contact customer support.

CautionEnabling and disabling MP unit auto assignment can have a significant impact on storage system performance. Contact customer support for assistance before enabling or disabling auto assignment of an MP unit.

Before you begin

The Storage Administrator (System Resource Management) role is required to perform this task.

Procedure

  1. Click Storage Systems, and then expand the Storage Systems tree.

  2. Expand Components, and click the controller (DKC) containing the MP unit that you want to change.

  3. On the MP Units tab, select the MP Unit ID of the MP unit that you want to change, and then click Edit MP Units.

    When the Edit MP Units window opens, the current auto assignment setting of the selected MP unit is displayed. For example, if auto assignment is currently enabled, the Edit MP Units window opens with Enable selected.

  4. In the Edit MP Units window, select Enable to enable auto assignment for the selected unit, or select Disable to disable auto assignment for the selected unit.

  5. Click Finish.

  6. In the Task Name text box, type a unique name for the task or accept the default.

    You can enter up to 32 ASCII characters and symbols, with the exception of: \ / : , ; * ? " < > |. The value "date-window name" is entered by default.

  7. Click Apply.

    If Go to tasks window for status is selected, the Tasks window opens.
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