NOTICE: This troubleshooting procedure can destroy data stored on the hard drive. Before you proceed, back up all files on the hard drive.

1Run the appropriate online diagnostics test. See "Using Dell PowerEdge Diagnostics" on page 97. Depending on the results of the diagnostics test, proceed as needed through the following steps.

2If you are experiencing problems with multiple hard drives, skip to step 5. For a problem with a single hard drive, continue to the next step.

3If your system has a SAS RAID controller, perform the following steps.

a Restart the system and press <Ctrl><R> to enter the host adapter configuration utility program.

See the documentation supplied with the host adapter for information about the configuration utility.

bEnsure that the hard drive has been configured correctly for the RAID.

cExit the configuration utility and allow the system to boot to the operating system.

4Ensure that the required device drivers for your SAS controller card or SAS RAID controller are installed and are configured correctly. See the operating system documentation for more information.

5Check the cable connections inside the system:

a Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.

b Open the system. See "Opening the System" on page 41.

c Verify that the cable connections between the hard drive(s) and the drive controller are correct, whether the connections are to the SATA connectors on the system board, a SAS expansion card, or a SAS RAID controller. See "Hard Drives" on page 51.

d Verify that the SAS or SATA cables are securely seated in their connectors. e Close the system. See "Closing the System" on page 41.

f Reconnect the system to the electrical outlet, and turn on the system and attached peripherals. If the problem persists, see "Getting Help" on page 107.

Troubleshooting a SAS RAID Controller

NOTE: When troubleshooting a SAS RAID controller, also see the documentation for your operating system and the controller.

Problem

Error message indicates a problem with the SAS RAID controller.

SAS RAID controller performs incorrectly or not at all.

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Troubleshooting Your System

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Dell KH934 owner manual Troubleshooting a SAS RAID Controller

KH934 specifications

The Dell KH934 is a high-performance laptop designed to meet the demands of both professional users and tech enthusiasts. Sporting a sleek and modern design, it combines aesthetic appeal with robust functionality, making it a versatile choice for a wide range of applications.

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