Disabling a Controller

This procedure disables I/O to a controller. This procedure also prevents the Dynamic Multipathing feature from accessing the paths associated with a controller. You can disable access to a controller in preparation for hardware maintenance.

To enable a controller

Select the controller to be disabled.
Choose Controller Disable (Command Launcher).

Complete the Disable Controller dialog box as follows:

Controller Name(s):	If the correct controller name is not already displayed in this field, type the controller's name or click Browse to select the controller.
Options	Click Show Options to access the optional settings for this task. To disable all enclosures (disk arrays) associated with this controller, select All Enclosures. To disable specific enclosures associated with this controller, type the enclosure names in the Selected Enclosures field or click Browse to select the enclosures.

When you have provided all necessary information in the dialog box, click OK.

Notes:
This task requires a controller name. This task prevents I/O and the Volume Manager Dynamic Multipathing feature from accessing the paths associated with the specified controller. The specified controller cannot contain the last enabled path to the root disk.

Disabling a Controller

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To enable a controller