Action; Symptom - Sun Microsystems Ultra 1 Series Service Manual

CD-ROM drive read or parity errors are reported by the operating system or
customer applications.
Replace the drive indicated by the failure messages. The operating system identifies
the internal drives as follows:
TABLE 4–4
Operating System Address
c0t0d0s#
c0t1d0s#
c0t6d0s#
Note -
represents the slice or partition on the drive.
Disk drive or CD-ROM fails to boot or is not responding to commands.
This symptom could be caused by a defective system SCSI controller. First test the
drive"s response to the probe-scsi command. At the system ok prompt, type
probe-scsi and press Return. If the disk drive responds correctly to this command,
a message will appear:
ok probe-scsi
Target 0
Unit 0
Target 1
Unit 0
Target 6
Unit 0
If the drives respond and a message is displayed, the system"s SCSI controller has
successfully probed the devices. This is an indication that the system"s main logic
Sun Ultra 1 Series Service Manual ♦ Revision A, November 1995
22
Internal Drives Identification
The # symbol in the examples may be a number between 0 and 7 and
Disk SEAGATE ST5660N
Copyright (c) 1993 Seagate
All rights reserved 0000
Disk SEAGATE ST5660N
Copyright (c) 1993 Seagate
All rights reserved 0000
Removable Read Only device
Drive Physical Location and Target
Lower SCSI Disk, target 0
Upper SCSI Disk, target 1
CD-ROM drive, target 6
SUN1.050638DX168801
SUN1.050638DX168801
TOSHIBA XM-5301TASUN4XCD173506/22/95