Replacing PSUsThe SC180 expansion enclosure supports two hot-swappable power supply units (PSUs). If one unit fails,the second unit continues to provide power to the expansion enclosure.Identifying the Failed PSUTo determine which power supply unit (PSU) 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 failedpower supply.Figure 7. Hardware Alert Identifying the Enclosure with the Failed Power Supply4. In the Hardware tab navigation pane, expand the enclosure identified in the previous step.5. Select Power Supplies. The status of each power supply is displayed in the Power Supplies tab.6. Select the failed power supply. The location of the failed power supply is displayed in the PowerSupply View tab.Replacing SC180 Components 17