Placing a Controller Into or Out of Service Mode

Prerequisites: Use the Place Service Mode option to safely run diagnostics without affecting data availability.


Attention:

Possible loss of data access – If are not on their preferred path (for example, they have been moved by a multi-path driver) and you attempt to put the controller that owns the moved logical drives into Service mode, a warning message appears. If you ignore this warning and place the controller into Service mode, you could lose access to your data.


Important:

Use this option only under the guidance of a representative.

Keep these guidelines in mind when you place a controller into or out of Service mode:

  1. To perform the specified task, go to the indicated step:
  2. To place a controller into Service mode, perform these substeps:


    Note:

    This option is only available when the controller is not in Service mode.

    1. In the Physical pane, select a controller, and select Advanced >> Recovery >> Place Controller >> In Service Mode .
    2. Click Yes.
    The selected controller is placed in Service mode. Ownership of the logical drives assigned to the controller that is entering Service mode is transferred to the other controller. The Controller icon in the Physical pane changes to indicate that the controller is in Service mode.
  3. To take a controller out of Service mode, perform these substeps:


    Note:

    This option is only available when the controller is in Service mode.

    1. In the Physical pane, select a controller, and select Advanced >> Recovery >> Place Controller >> Online .
    2. Click Yes.
    The Controller icon in the Physical pane changes to . Logical drives are redistributed to their preferred owners.

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