152 Maintaining the PowerVault NX3500To detach a controller:1 Log in to the CLI using the management access VIP address.To obtain this address, in the NAS Manager, go to the SystemManagement tab and click NetworkSubnetsPrimaryManagementConsole VIP.2 Execute the following command:system maintenance controllers detach start<controllerID> -nosaveConfNOTE: Depending on the configuration and the controller being detached,you may have to disconnect and reboot the system. This will only occur if thecontroller being detached is the primary controller being accessed by the CLI.If a controller was alive and working prior to initiating the detachprocedure, it shuts down and upon reboot it will appear as a standbycontroller. In the case of a failed controller, the system adjusts in a mannerthat allows the connection of a new controller.Removing and Replacing the PowerVault NX3500 ControllerTo remove and replace the PowerVault NX3500 controller:1 Disconnect all cables from the back of the controller.2 Remove the failed system from the rack.3 Install the new system in the rack.4 Connect all cables to the new system.Ensure that the network cables are placed in the proper ports. If necessary,refer to the color coding table for client, SAN, internal, and peer portconnections included with this document.Place the file system reinstall DVDin the drive and power on the newly replaced PowerVault NX3500 controller.5 Select the Firmware reset option when the re-install DVD boots to the menu.This process may take some time to complete, and the system may restartnumerous times until all the firmwares are updated. Completing this stepensures that the new controller firmwares are up to date.
