Sun Microsystems Enterprise 250 Owner's Manual page 280

TABLE 12–3
Test Name
scsi@3
scsi@3,1
se@14,40000
su@14,3062f8
Sun Enterprise 250 Server Owner's Guide ♦ Revision A, June 1998
246
(continued)
Description
1 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.
Tests keyboard control and input
logic, including internal and
external loopback tests.
Special Considerations
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.
Keyboard tests run only when a
keyboard is used as the input
device.
To run external loopback tests,
you must have a special passive
loopback connector attached to the
keyboard/mouse port. The variable
diag-targets must be set to
loopback, device&loopback, or
device&loopback,3.
The Sun part number for the
loopback connector is 501-4690-01.