Fail Over A Controller Using The Gui - HPE Nimble Storage HF Series Hardware Manual

4. Replace the SFP transceiver.
a) With the retaining latch closed, gently slide the new SFP transceiver into the port.
b) Remove the dust cover from the new SFP transceiver.
c) Insert the cable into the new SFP transceiver.
5. Verify that the port is online using one of the following methods:
In the GUI, click Hardware, and verify that the port is connected (green). Mouse over the port to see the link status
and the negotiated speed.
In the CLI, enter the command array_name: nic --list, and then review the link status and negotiated speed.
6. Return the failed SFP transceiver as directed on the RMA work order.

Fail Over a Controller Using the GUI

A failover switches management of the array from the active controller to the standby controller.
Before you begin
Failover requires one controller to be in Active mode and the other controller to be in Standby mode.
Procedure
1. In the GUI, choose Hardware.
2. From the list of arrays, click the array you want to fail over.
3. In the Array view, note which controller is Active and which is Standby.
4. Click Make Active on the Standby controller.
5. In the confirmation dialog box, click Yes.
During the failover operation, the standby controller first goes into Solo mode, and then into Active mode. The active
controller goes into Unknown mode, then into Stale mode, and finally into Standby mode.
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Maintenance Procedures 96