Troubleshooting Sc400 Series Components; Troubleshooting Power Supply/Cooling Fan Modules; Troubleshooting Hard Drives; Troubleshooting Enclosure Management Modules - Dell SC420F Owner's Manual

Troubleshooting SC400 Series Components

This section contains basic troubleshooting steps for components inside the SC400 series expansion enclosures.

Troubleshooting Power Supply/Cooling Fan Modules

Use these steps to troubleshoot power supply/cooling fan modules.
1. Check the status of the power supply/cooling fan module using the Dell Storage Client.
2. Determine the status of the power supply/cooling fan module LEDs.
• If the power supply/cooling fan module fault indicator is lit, the power supply/cooling fan has failed.
• If the AC power LED is not lit, check the power cord and power source into which the power supply is plugged:
– Connect another device to the power source and check whether the device works.
– Connect the power cord to a different power source.
– Replace the power cord.
• If the DC power LED is not lit, verify that the power switch is turned on.
3. Reseat the power supply/cooling fan module by removing and reinstalling it.
NOTE: Allow several seconds for the expansion enclosure to recognize the power supply/cooling fan module and
determine its status.

Troubleshooting Hard Drives

Use these steps to troubleshoot hard drives.
1. Check the status of the hard drive using the Dell Storage Client.
2. Determine the status of the hard drive LEDs.
• If the hard drive status LED blinks amber four times per second, the hard drive has failed.
• If the hard drive status LED is not lit, proceed to the next step.
3. Check the connectors and reseat the hard drive.
a. Remove the hard drive.
b. Check the hard drive and the backplane to ensure that the connectors are not damaged.
c. Reinstall the hard drive. Make sure the hard drive contacts the backplane.

Troubleshooting Enclosure Management Modules

Use these steps to troubleshoot EMMs.
1. Check the status of the EMM using the Dell Storage Client.
2. Check the pins and reseat the EMM.
a. Remove the EMM.
b. Verify that the pins on the backplane and the EMM are not bent.
c. Reinstall the EMM.
3. Determine the status of the EMM link status LEDs. If the LEDs are not green, check the cables.
a. Reseat the cables on the expansion enclosure and the storage system.
b. Recheck the link status LEDs. If the link status LEDs are not green, replace the cables.
Troubleshooting SC400 Series Components
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