Dell E04J Series Front-Bezel Features and Indicators, Connector Hard drives Enclosure mode switch

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Item	Indicator, Button, or	Icon	Description
	Connector

5Hard drives

6Enclosure mode switch

PowerVault MD1200—Up to 12 3.5-inch SAS hot-swappable hard drives.

PowerVault MD1220—Up to 24 2.5-inch SAS hot-swappable hard drives.

When set in the top position, the enclosure is configured in unified mode. When set in the bottom position, the enclosure is configured in split mode.

Front-Bezel Features and Indicators

Figure 1-3. Front-Bezel Features and Indicators

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2

3

About Your Enclosure

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Contents Dell PowerVault MD1200 and MD1220 Storage Enclosures October Contents Installing Enclosure Components Troubleshooting Your Enclosure Contents About Your Enclosure Front-Panel Features and IndicatorsEnclosure power is on Connector Hard drives Enclosure mode switch Front-Bezel Features and IndicatorsIndicator, Button, or Icon Hard Drive Indicators Hard-Drive Indicator PatternsBack-Panel Features and Indicators Enclosure Management Module OUT Lights green when all the links out Enclosure Failover When Two EMMs are Installed Enclosure AlarmsEMM Thermal Shutdown Power Indicator Codes Other Information You May Need Operating Your Storage Enclosure Before You BeginCabling Your Enclosure Connecting the Enclosure Connecting a SAS Cable SAS cable Pull-tab Page Page Host controller Changing Your Enclosure’s Operating Mode Downloading Firmware Managing Your Storage EnclosureRecommended Tools Installing Enclosure ComponentsFront Bezel Optional Removing the Front BezelInstalling the Front Bezel Safety Models AMT, E03J, and E04J Hard DrivesRemoving a Drive Blank Release tab Removing a Hard Drive Installing a Drive BlankRemoving and Installing a Hard Drive Release button Installing a Hard DriveRemoving a Hard Drive From a Hard-Drive Carrier Screws Removing an EMM Blank Installing a Hard Drive Into a Drive CarrierRemoving and Installing an EMM Blank Release latch EMM blank Installing an EMM BlankRemoving an EMM Removing and Installing an EMM Power Supply/Cooling Fan Module Installing an EMMRemoving a Power Supply/Cooling Fan Module Removing and Installing a Power Supply/Cooling Fan Module 10. Securing the Power Cable Velcro strap Installing a Power Supply/Cooling Fan ModuleRemoving the Control Panel Control PanelRelease pin Installing the Control Panel BackplaneRemoving the Backplane Page Captive screw Installing the Backplane Installing Enclosure Components Troubleshooting Your Enclosure Troubleshooting Loss of CommunicationTroubleshooting External Connections Troubleshooting Power Supply/Cooling Fan Module Troubleshooting Enclosure Cooling Problems Troubleshooting Enclosure Management Modules Troubleshooting Hard Drives Troubleshooting a Wet Enclosure Troubleshooting Enclosure ConnectionsTroubleshooting a Damaged Enclosure Troubleshooting Your Enclosure Contacting Dell Getting HelpGetting Help Amperes AC Alternating current GlossaryCPU Central processing unit. See processor DC Direct current Page Page Mm Millimeters Ms Milliseconds Page System memory See RAM Watts Glossary Page Glossary Index Index