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Remove all other parts to eliminate the possibility that those parts could be
causing the POST failure.
Disk Drive Errors
Table 4–3 presents disk drive error conditions and corrective actions.
TABLE 4–3
Symptom
Read, write, or parity error
reported by the operating system
or applications.
Drive fails to boot or does not
respond to commands.
Slow disk drive response.
Verifying the Built-In SCSI Controller
To check whether the built-in SCSI controller is defective, test the drive response to
the probe-scsi command. To test additional SCSI host adapters added to the
system, use the probe-scsi-all command. Refer to "module-info" on page 154."
1. At the ok prompt, type probe-scsi
SPARCstation 5 Service Manual ♦ Revision A, August 1994
32
Troubleshooting Disk Drive Errors
Corrective Action
Replace the disk drive indicated by the failure
message. Solaris 1.x operating systems identify the
disk drive installed in the lower bay (SCSI target ID 3)
as sd0 and the disk drive installed in the upper bay
(SCSI target ID 1) as sd1. With Solaris 2.x operating
systems, the two drives are identified as c0t3d0 and
c0t1d0, respectively.
SCSI controller may be defective. See "Verifying the
Built-In SCSI Controller" on page 32." Verify that each
SCSI device is assigned a unique SCSI target address.
See Appendix C, for important additional information.
If many SCSI devices are connected to the same SCSI
bus and if some of these devices, such as the
1.05-Gbyte disk drive, are "fast SCSI" devices, you
may want to install an FSBE/S SCSI host adapter card
to the "fast SCSI" devices and put these "fast SCSI"
devices on a separate SCSI bus to speed up disk drive
response.
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Table of Contents
Troubleshooting
