Service manual

Chapter 4 Troubleshooting Procedures 4-3
4.3 Hard Drive or CD-ROM Drive Failure
This section provides hard drive and CD-ROM drive failure symptoms and
suggested actions.
Symptom
A hard drive read, write, or parity error is reported by the operating system or
customer application.
A CD-ROM drive read error or parity error is reported by the operating system or
customer application.
Action
Replace the drive indicated by the failure message. The operating system identifies
the internal drives as listed in the following table.
Note – The # symbol in the examples may be a number between 0 and 7 that
describes the slice or partition on the drive.
Symptom
Hard drive or CD-ROM drive fails to respond to commands.
Note – To bypass POST, type: setenv diag-switch? false at the ok prompt.
Action
Test the drive response to the probe-scsi command as follows:
TABLE 4-1 Internal Drives Identification
Operating System Address Drive Physical Location and Target
c0t0d0s# SCSI hard drive, target 0
c0t1d0s# SCSI hard drive, target 1
c0t6d0s# CD-ROM drive, target 6