ContentsAbout this Guide................................................................................................................ 4Revision History..................................................................................................................................................................4Audience.............................................................................................................................................................................4Contacting Dell................................................................................................................................................................... 4Related Publications........................................................................................................................................................... 41 About the SCv300 and SCv320 Expansion Enclosure...................................................... 5SCv300 and SCv320 Expansion Enclosure Overview.........................................................................................................5SCv300 and SCv320 Expansion Enclosure Monitoring and Diagnostics............................................................................. 5SCv300 and SCv320 Expansion Enclosure Front-Panel Features and Indicators................................................................ 5SCv300 and SCv320 Expansion Enclosure Back-Panel Features and Indicators.................................................................6SCv300 and SCv320 Expansion Enclosure EMM Features and Indicators..........................................................................7EMM Failover............................................................................................................................................................... 7SCv300 and SCv320 Expansion Enclosure Drives.............................................................................................................. 82 Replacing SCv300 and SCv320 Expansion Enclosure Components................................. 9Safety Precautions............................................................................................................................................................. 9Installation Safety Precautions......................................................................................................................................9Electrical Safety Precautions........................................................................................................................................ 9Electrostatic Discharge Precautions............................................................................................................................10General Safety Precautions.........................................................................................................................................10Pre-Replacement Procedures........................................................................................................................................... 10Send Diagnostic Data Using Dell SupportAssist.......................................................................................................... 10Change the Operation Mode of the Storage Center to Maintenance..........................................................................10Replacing the Front Bezel.................................................................................................................................................. 11Replacing Hard Drives .......................................................................................................................................................11SCv300 and SCv320 Expansion Enclosure Drive Numbering.......................................................................................11Identify the Failed Hard Drive...................................................................................................................................... 12Replace a Hard Drive...................................................................................................................................................13Replacing Rack Rails......................................................................................................................................................... 15Post-Replacement Procedures..........................................................................................................................................16Send Diagnostic Data Using Dell SupportAssist.......................................................................................................... 16Change the Operation Mode of the Storage Center to Normal...................................................................................163 Troubleshooting SCv300 and SCv320 Components....................................................... 17Troubleshooting Power Supply/Cooling Fan Modules........................................................................................................17Troubleshooting Hard Drives..............................................................................................................................................17Troubleshooting Enclosure Management Modules.............................................................................................................17Troubleshooting the Control Panel.................................................................................................................................... 184 SCv300 and SCv320 Expansion Enclosure Technical Specifications.............................. 19Technical Specifications.................................................................................................................................................... 193