Sun Microsystems 220R manual OBP show-devs Command, OBP printenv Command

OBP show-devsCommand

If you are working from the OBP prompt (ok), you can use the OBP show-devscommand to list the devices in the system configuration.

OBP printenv Command

Use the OBP printenv command to display the OpenBoot PROM configuration variables stored in the system NVRAM. The display includes the current values for these variables as well as the default values.

OBP 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 as an alternative method of testing the SCSI interfaces. See “About Diagnostic Tools” on page 118 for more information.

The probe-scsicommand transmits an inquiry command to all SCSI devices connected to the main logic board SCSI interfaces. This includes 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.

Chapter 7 Diagnostics and Troubleshooting 145