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Troubleshooting Your System 115
Troubleshooting a Hard Drive
Problem
• Device driver error.
• One or more hard drives not recognized by the system.
Action
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. Before performing any procedure, see your Product Information Guide for
complete information about safety precautions, working inside the computer and protecting against electrostatic
discharge.
NOTICE: This troubleshooting procedure can destroy data stored on the hard drive. Before you proceed, back up
all files on the hard drive.
1
Run the appropriate online diagnostics test. See "Using Server Administrator Diagnostics" on page 121.
Depending on the results of the diagnostics test, proceed as needed through the following steps.
2
Remove the bezel. See "Removing the Bezel" on page 46.
3
If you are experiencing problems with multiple hard drives, skip to step 7. For a problem with a single
hard drive, continue to the next step.
4
Turn off your system, remove and reinstall the hard drive, and restart the system. See "Removing a
Hard Drive" on page 59 and "Installing a Hard Drive" on page 61.
5
If your system has a SAS RAID controller daughter card, 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.
b
Ensure that the hard drive has been configured correctly for the RAID.
c
Exit the configuration utility and allow the system to boot to the operating system.
6
Ensure that the required device drivers for your SAS controller card or SAS RAID controller daughter
card are installed and are configured correctly. See the operating system documentation for more
information.
7
Check 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 48.
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 (see Figure 3-12), a SAS
expansion card (see Figure 3-13), or the SAS RAID controller daughter card (see Figure 3-14).