Owners Manual

Troubleshooting SC180 Components

This section contains basic troubleshooting steps for components inside the SC180 expansion

enclosures.

Troubleshooting Cooling Fan Modules

To troubleshoot cooling fan modules:

1. Check the status of the cooling fan module using the Dell Storage Client.

2. Determine the status of the cooling fan module LEDs.

If the cooling fan fault indicator is lit, the cooling fan module has failed.

3. Reseat the cooling fan module by removing and reinstalling it.

NOTE: Allow several seconds for the expansion enclosure to recognize the cooling fan module

and determine its status.

Troubleshooting PSUs

To troubleshoot power supply units (PSUs):

1. Check the status of the PSU using the Dell Storage Client.

2. Determine the status of the PSU LEDs.

• If the PSU fault indicator is lit, the PSU has failed.

• If the Power OK 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 AC fault LED is lit, this PSU is not supplying power, though the other PSU may still be

supplying power.

3. Reseat the PSU by removing and reinstalling it.

NOTE: Allow several seconds for the expansion enclosure to recognize the PSU and determine

its status.

Troubleshooting Hard Drives

To troubleshoot hard drives:

1. Check the status of the hard drive using the Dell Storage Client.

2. Determine the status of the DDIC LED.

• If the DDIC fault LED is lit, the hard drive has failed.

Troubleshooting SC180 Components