Sun Microsystems Enterprise 250 Owner's Manual page 246

Test Name
fdthree
@14,3023f0
network@1,1
1
scsi@3
scsi@3,1
se@14,40000
228 Sun Enterprise 250 Server Owner's Guide • June 1998
Description
Tests diskette drive control logic
and the operation of the drive. The
test does not differentiate among a
drive, media, or main logic board
error; if any of these fail, it reports
the diskette drive as the FRU.
Tests the on-board Ethernet logic,
including internal and external
loopback tests.
Tests the on-board SCSI controller
and SCSI bus subsystem for
internal disk drives and removable
media devices. Checks associated
registers and performs a DMA
transfer.
Tests the main logic board external
SCSI interface. Checks associated
registers and performs a DMA
transfer.
Tests serial port control and I/O
logic, including internal and
external loopback tests. The test
checks I/O logic only if the
external loopback test is enabled.
Special Considerations
A formatted diskette must be inserted into the
drive.
To run external loopback tests on the TPE port,
you must have a TPE loopback connector
attached to the TPE port. The variable
diag-targets must be set to loopback,
device&loopback, or device&loopback,3.
The Sun part number for the TPE loopback
connector is 501-4689-01.
Port A tests are not run if ttya is being used as
the input/output device.
To run external loopback tests, you must have a
special passive loopback connector attached to
each serial port, and the variable
diag-targets must be set to loopback,
device&loopback, or device&loopback,3.
There is one passive connector available for this
test: Sun part number 501-4205-01. Use
501-4205-01 when ports A and B are not
attached to external devices.