Dell PowerEdge 850 Installation And Troubleshooting Manual page 38

For information about testing the controller, see the controller's documentation.
If the tests fail, continue to the next step.
3. If the SCSI hard drives are configured in a RAID array, restart the system and enter the RAID configuration utility.
NOTE: To enter the utility, press <Ctrl><h>, <Ctrl><a>, or <Ctrl><m>, depending on the utility. See the documentation supplied with the
controller for information about the configuration utility.
4. Ensure that the primary SCSI channel is enabled, and restart the system.
5. Verify that the device drivers are installed and configured correctly. See the operating system documentation.
6. Remove the bezel. See "Removing the
7. Remove the hard drive:
If your hard drive is not configured in a RAID array, shut down the system, remove the hard drive and install it in another drive bay. See
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Access SCSI Hard Drives
If your hard drive is configured in a RAID array with four hard drives, install a new hard drive. See
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If your hard drive is configured in a RAID array with up to three hard drives, remove the hard drive and install the drive in an empty drive bay. See
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"Hot-Plug SCSI Hard Drives" in "Installing Drives."
NOTICE: Do not swap the hard drives in a four hard-drive RAID configuration. Doing so may corrupt the data on both hard drives.
8. Install the bezel. See "Installing the
9. If the system recognizes the hard drive, reinstall the hard drive in the original bay. See
(Non-Hot-Plug)" in "Installing Drives."
If the hard drive functions properly in the original bay, the drive carrier could have intermittent problems. Replace the drive carrier. See
Hard Drives" or "Front-Access SCSI Hard Drives
If the problem persists, the SCSI backplane board has a defective connector. See
CAUTION: See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting
against electrostatic discharge.
10. Check the SCSI 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
c. Lay the system on its right side.
d. Remove the cover. See
e. Verify that the SCSI cable is securely connected to the controller card and the SCSI backplane.
f. Replace the cover. See
g. Stand the system upright.
h. Install the bezel. See
11. Format and partition the hard drive. See the operating system documentation.
12. If possible, restore the files to the drive.
If the problem persists, see
Troubleshooting a Cabled SCSI Hard Drive
Problem
Device driver error.
l
Hard drive not recognized by the system.
l
Bezel."
(Non-Hot-Plug)" in "Installing Drives."
Bezel."
(Non-Hot-Plug)" in "Installing Drives."
"Opening the System."
"Removing the Cover."
"Replacing the Cover."
"Installing the Bezel."
"Getting Help."
"Hot-Plug SCSI Hard
"Hot- Plug SCSI Hard Drives" or
"Getting Help."
"Front-
Drives" in "Installing Drives."
"Front-Access SCSI Hard Drives
"Hot-Plug SCSI