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Chapter 6 Diagnostics, Monitoring, and Troubleshooting 169
The following table describes what each self-test does.
Note – Use of the OpenBoot PROM configuration variable test-args can affect
the behavior of OpenBoot Diagnostics. The test-args variable is empty by default.
Use the help command for more information on test-args.
Test Function
bbc Tests the registers in the boot bus controller, and then verifies that at
least one processor has boot bus access.
ebus Accesses the Ebus through the RIO port and then tests DMA
controller functionality.
flashprom Performs a checksum and read/write test on the flash PROM
containing the main logic board boot code.
gpio Tests the registers of the general purpose input/output subsystem.
i2c@1,2e Tests SEEPROM devices.
i2c@1,30 Tests SEEPROM devices and I
2
C port expanders. Also performs
various read and write tests on the I
2
C temperature controller devices.
network Tests the registers of the RIO Ethernet controller.
parallel Tests the parallel port using both supported parallel port modes:
ECPP and extended parallel mode.
pmc Tests the registers of the power management controller.
rsc-control Calls RSC POST and verifies loopback functionality through the RSC
console.
rtc Tests the registers of the realtime clock, then ensures that interrupts
are firing correctly.
SUNW,qlc Tests the registers of the Fibre Channel-Arbitrated Loop (FC-AL)
subsystem.
scsi Tests the SCSI disk controller registers and verifies DMA functionality.
serial Tests the ttya and ttyb serial lines, and then performs an internal
loopback test on each.
usb Tests the registers on each RIO Universal Serial Bus.