Dell EqualLogic PS6210XS EqualLogic Group Manager Administrator s Guide PS Ser - Page 180

NOTE: Detach a NAS controller only when directed by your customer support representative. In some cases, your support representative might instruct you to cleanly shut down a NAS controller before detaching it. After cleanly shutting down the NAS controller, you can turn on power, wait for the NAS cluster to recognize the NAS controller, and then detach the NAS controller. You cannot detach a NAS controller if its peer NAS controller is already detached. However, in a 4-controller NAS cluster, you can detach one controller in each NAS controller pair. To detach a NAS controller: 1. Click Group Configuration, then expand Members. 2. Select a NAS member and, if necessary, expand it to show the NAS controller name. 3. After verifying the status of its peer NAS controller, select an attached NAS controller. 4. Click Detach NAS controller. 5. Confirm that you want to detach the NAS controller. A progress window opens, showing the progress of the detach NAS controller operation. This operation might take up to 30 minutes to complete. After you detach a NAS controller: • An X icon overlays the controller name in the PS Series group hierarchy. • The NAS controller resets to its factory defaults and powers off, if possible. NOTE: Wait for the detach NAS controller operation to complete before starting another long-running operation, such as an add NAS controller pair, attach NAS controller, or NAS reserve resize operation. You can perform some member maintenance operations with no impact on member operation (for example, replacing a power supply). You can perform other NAS cluster maintenance operations by cleanly shutting down one NAS controller (resulting in a degraded pair), performing the maintenance, and then restarting the controller. See your NAS appliance hardware documentation. If the detach NAS controller operation fails, contact your customer support representative. Attach a NAS Controller When a NAS controller is attached, it inherits the NAS cluster configuration settings of the original NAS controller. Prerequisites Before attaching a NAS controller to a controller pair, refer to your hardware documentation for information to obtain, and verify the following information and NAS controller physical state: • Obtain the service tag identification number for the NAS controller that you want to attach. • Power on the NAS controller and place it in standby mode. • Connect all network ports to the appropriate switches, especially the SAN network ports. • Enable IPv6 in your switch stack. • Detach the old NAS controller before you attach the new one. You cannot attach a new controller if the old controller is down but still attached. Procedure To attach a NAS controller: 1. Click Group Configuration, then expand Members. 2. Select a NAS member and, if necessary, expand it to display and select the required NAS controller name. 3. Click Attach NAS controller. 180 NAS Controller Operations