4-6 SPARCstation 5 Model 110 Service Manual • November 1996
4.3 Disk Drive Errors
TABLE 4-3 presents disk drive error conditions and corrective actions.
4.3.1 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 Section D.1.6 “module-info.
● At the ok prompt, type probe-scsi
See the following example.
a. If the disk drive responds and a message is displayed, the system SCSI
controller has successfully probed the devices.
This indicates that the system board is working correctly.
TABLE 4-3 Troubleshooting Disk Drive Errors
Symptom Corrective Action
Read, write, or parity error
reported by the operating system
or applications.
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.
Drive fails to boot or does not
respond to commands.
SCSI controller may be defective. See Section 4.3.1 “Verifying the Built-In
SCSI Controller.” Verify that each SCSI device is assigned a unique SCSI
target address. See Appendix C for important additional information.
Slow disk drive response. 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.
ok probe-scsi
Target 1
Unit 0 Disk CONNER CP30548 SUN0535AEBX93081QTT
Target 3
Unit 0 Disk SEAGATE ST3610N SUN0535881200054301
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