Sun Microsystems 220R service manual OBP probe-scsi and probe-scsi-all Commands

(Continuation)

use-nvramrc? false false

nvramrc
security-mode	none
security-password
security-#badlogins	0
oem-logo
oem-logo?	false	false
oem-banner
oem-banner?	false	false
hardware-revision
last-hardware-update
diag-switch?	true	false

7.12.2.5OBP probe-scsi and probe-scsi-all Commands

To diagnose problems with the SCSI subsystem, you can use the OBP probe-scsiand probe-scsi-allcommands. Both commands require that you halt the system.

Note - When it is not practical to halt the system, you can use SunVTS software as an alternative method of testing the SCSI interfaces. See Section 7.1 “About Diagnostic Tools” on page 186 for more information.

The probe-scsicommand transmits an inquiry command to all SCSI devices connected to the main logic board SCSI interfaces. These include any tape or CD-ROM drive in the removable media assembly (RMA), any internal disk drive, and any device connected to the external SCSI connector on the system back panel. For any SCSI device that is connected and active, its target address, unit number, device type, and manufacturer name are displayed.

The probe-scsi-allcommand transmits an inquiry command to all SCSI devices connected to the system SCSI host adapters, including any host adapters installed in PCI slots. The first identifier listed in the display is the SCSI host adapter address in the system device tree followed by the SCSI device identification data.

The first example that follows shows a probe-scsioutput message. The second example shows a probe-scsi-alloutput message.

probe-scsi output:

Diagnostics and Troubleshooting 223