Dell PowerEdge 2450 - Manual (Page 70)

7-20 Dell PowerEdge 2450 Systems Installation and Troubleshooting Guide
12. Repeat steps 9 through 11 until all expansion cards have been reinstalled or until
one of the expansion cards prevents the system from booting from the diagnos-
tics diskette.
13. Has an expansion card prevented the system from booting from the diagnostics
diskette?
Yes. An expansion card is faulty. See Chapter 11, “Getting Help,” for instructions
on obtaining technical assistance.
No. The diskette drive subsystem is faulty. See Chapter 11, “Getting Help,” for
instructions on obtaining technical assistance.
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A SCSI tape drive can be an internal device installed in the externally accessible drive
bay or an external device that attaches to a SCSI host adapter connector on the back
panel of the computer. The SCSI tape drive is controlled by a SCSI host adapter card
installed in the computer, which may also control other SCSI devices connected to
one or more SCSI cables. SCSI devices often require device drivers for the particular
operating system being used by the computer system.
Tape drive problems often result from a defective tape drive, a defective tape car-
tridge, or software. To troubleshoot a SCSI tape drive, perform the following steps:
1. Remove the tape that was in use when the problem occurred, and replace it with
a tape that you know is not defective.
Is the problem resolved?
Yes. The original tape was defective. Replace it with a new tape. You have fixed
the problem.
No. Go to step 2.
2. Reboot the system and press <F2> to enter the System Setup program.
Is Secondary SCSI set to Enabled?
Yes. Go to step 4.
No. Go to step 3.
3. Verify that any required SCSI device drivers are installed on the hard-disk drive
and are configured correctly. See “Installing and Configuring SCSI Drivers,” in the
User's Guide for instructions on installing and configuring the SCSI device drivers
for the system's integrated SCSI host adapter or the Dell PowerEdge Expandable
RAID Controller (PERC) host adapter card. For any other type of SCSI host