Table 4-8 Obdiag Configuration Variables; Obdiag Tests - Sun Microsystems Netra T4 AC100 Service And System Reference Manual

Note – Set the diag-level variable to min prior to performing these tests. This can
be done at the ok prompt or within the obdiag menu.
The OpenBoot diagnostic (OBDiag) is a menu-driven set of diagnostics that reside in
flash PROM on the motherboard. OBDiag can isolate errors in the following system
components:
Motherboard
DVD-ROM and DAT drives
Hard drive
Any option card that contains an onboard self-test
OBDiag performs root-cause failure analysis on the referenced devices by testing
internal registers, confirming subsystem integrity, and verifying device functionality.
On the motherboard, OBDiag tests not only the motherboard but also its interfaces:
PCI
SCSI
Ethernet
Serial
Parallel
USB
I2C
FC-AL
4.5.4.1

OBDiag Tests

Each self-test executes independently and returns a zero if it completes successfully,
or a non zero and an error report if it is unsuccessful. Diagnostic configuration
variables determine the level of coverage, execution flow, and the corresponding
output. These variables are configured using the setenv command.
TABLE 4-8
Variable
diag-level
diag-passes
1. When diag-level is set to min, OBDiag performs abbreviated tests.
2. When diag-level is set to max, OBDiag performs extended tests.
3. Where "#" is the number of times the tests are performed (integer).
OBDiag Configuration Variables
Function
Determines how the tests are performed
Defines the number of times the self-test
method(s) are performed
Possible Values Default Value
1
min min
2
max
3
# 1
Chapter 4 Troubleshooting 4-19