Administrator Guide

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 Conguration, 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. Conrm 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 o, 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 conguration 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 identication 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 Conguration, 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.
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NAS Controller Operations