• Controlling access to hard drives• Communicating storage attributes and states to the storage systemNOTE: Do not return the storage controller battery with the failed storage controller. A new batteryis not included with a replacement storage controller.Identify the Failed Storage ControllerTo determine which storage controller failed, use the Dell Storage Client .1. Click the Hardware tab.2. In the Hardware tab navigation pane, select the Storage Center.3. In the Hardware Alerts area, find the hardware alert that identifies the enclosure with the failedstorage controller.Figure 23. Hardware Alert Identifying the Enclosure with the Failed Storage Controller4. In the Hardware tab navigation pane, expand the Enclosures entry.5. Click I/O Modules. The status of each storage controller is displayed in the I/O Modules tab.6. Select the failed storage controller to display its location in the IO Module View tab.30 Replacing SCv2000/SCv2020 Components