e. Select I/O Modules.f. In the right pane, right-click the module, then click Request Swap Clear.g. Click the Alerts tab.h. Right-click the alerts for the temperature sensor and I/O modules, then click Acknowledge.NOTE: The alerts may not appear immediately. If the alerts do not appear, wait 10 secondsand then click Refresh.12. Clear the swap status for the temperature sensor and acknowledge the alert.a. Click the Hardware tab.b. In the Hardware tab navigation pane, expand the enclosure.c. Select Temperature Sensors.d. In the right pane, right-click the sensor, then click Request Swap Clear.e. Click the Alerts tab.f. Right-click the alert and select Acknowledge.NOTE: The alert may not appear immediately. If the alert does not appear, wait 10 secondsand then click Refresh.13. Shut down the other storage controller and repeat the previous steps.Next stepsUse SupportAssist to send diagnostic data to Dell Technical Support.Replace Both Storage Controllers SimultaneouslyIf you need to replace both storage controllers at the same time, contact Dell Technical Support forassistance.Replacing Rack RailsRack rails are used to install the SCv2080 storage system into a rack.Prerequisites1. Use SupportAssist to send diagnostic data to Dell Technical Support.2. Shut down the storage system using the Dell Storage Client.About this taskNOTE: Replacing rack rails must be performed during a scheduled maintenance window when theStorage Center system is unavailable to the network.Steps1. Make sure all the cables are labeled.2. Disconnect all the cables from the storage system.3. Remove the plastic covers from the chassis ears.4. Remove the screws that secure the chassis to the rack.5. Remove the storage system from the rack rails.WARNING: Do not attempt to the lift the storage system by yourself. Always have assistancewhen lifting the storage system. If installed above the lower 20U of a rack, a customer-provided mechanical lift must be used to avoid injury.6. Remove the rack rails from the rack.7. Install the replacement rack rails in the rack.42 Replacing SCv2080 Storage System Components