Troubleshooting Hard Drives; Troubleshooting Enclosure Management Modules; Troubleshooting The Control Panel - Dell Storage Center SC200 Service Manual

Chapter 3 Troubleshooting SC200/220 Components

Troubleshooting Hard Drives

Use these steps to troubleshoot hard drives.
1 Check the status of the hard drive using the Storage Center System Manager.
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 Storage Center System Manager.
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 Shut down the controller.
b Reseat the cables on the enclosure and the controller.
c Restart the enclosure and then the controller.
d Recheck the link status LEDs. If the link status LEDs are not green, replace the
cables.

Troubleshooting the Control Panel

Use these steps to troubleshoot the control panel.
1 Determine the status of the control panel LEDs. If the LEDs are not lit, and the
enclosure is powered on, the control panel has failed.
2 Reseat the control panel by removing and reinstalling it.
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Caution: The controller(s) and enclosure(s) must be shut down before reseating
the control panel. For more information, see
page 19.
Replacing the Control Panel on
Storage Center SC200 and SC220 Enclosures Service Guide