Appendix D
Troubleshooting
D-11
-- I/O boat 1
Test the FRUs listed above before suspecting the following:
-- Link card (see
)
-- Chassis (see
)
iv. Power on both PSUs.
v. Power on the affected domains.
If the problem has been corrected, the fault messages will not appear.
vi. If this does not correct the problem, reinsert the FRU you removed in
, then repeat
through
for a different FRU.
vii. If this corrects the problem, go to
.
viii. If this does not correct the problem, go to
b. Determine which FRU is causing the problem.
■
If the I
2
C problems are resolved by the removal of a PSU, assume the PSU is
faulty.
■
If the problems are resolved by removing an I/O boat, determine whether
the problem is with the I/O boat itself or the link card in the I/O boat. Swap
the link card from the failed I/O boat to a known good I/O boat to
determine if the problem follows the link card.
c. If the errors continue to appear, either the chassis is faulty or multiple FRUs
have I
2
C problems.
Contact a technical support engineer for advanced assistance.
D.2.2.3
I
2
C Fault When Accessing the Link Card Installed in the Host
The host manages the External I/O Expansion Unit through I
2
C commands sent to
the link card installed in a host PCI Express add-in card slot. If the fault list includes
the
i2c_main
bus for the link card installed in a host add-in slot
hc:///chassis=
0/iou=
x
/pcislot=
y
/link=0/i2c_main=0
, a problem exists between the External
I/O Expansion Unit and the link card.
Possible Causes
■
The host link card is not fully seated.
■
The host PCI Express slot is faulty.
■
The host link card is faulty.
Summary of Contents for SPARC Enterprise M4000
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