Tfio Problem Indications And Solutions - IBM TotalStorage SAN256N Director 2045-N16 Installation And Maintenance Manual

• The PWR OK LED is green, indicating that DC power to the module is within
tolerances and the module is not in a power on reset condition.
• The ONLINE LED is green, indicating that the TFIO is active and logged into the
fabric.
• The HEARTBEAT LED is flashing yellow, indicating that the module is functioning
correctly.
• The FAULT LED is not lit.
During normal operation, the TFIO Port LEDs provide the following information:
• The LINK (L) LEDs will be solid yellow if a device is logged into the TFIO as a 1.0625
Gbps device but there is no data activity on the port. The LED will flash yellow as
1.0625 Gbps data streams into or out of the port. If the device attached and logged in
is 2.125 Gbps, then the LED will be lit green. It will blink green if 2.125 Gbps data is
transmitted or received for that port.
• The ERROR (E) LEDs are not lit.
During normal operation, the TFIO Mirror Ports MTx and MRx (if utilized) LEDs provide
the following information:
• The LINK (L) LEDs will be solid yellow if a device is logged as a 1.0625 Gbps device
but there is no data activity on the port. The LED will flash yellow as 1.0625 Gbps data
streams out of the port. If the device is attached and logged in at 2.125 Gbps, then the
LED will be solid green. It will blink green if 2.125 Gbps data is transmitted at that
port.
• The ERROR (E) LEDs are not lit.

TFIO problem indications and solutions

The following is a list of possible TFIO problem indications, descriptions of the problems,
a probable cause, and an action to take.
Table 7. TFIO problem indications, solution 1
Power OK LED is not lit
Problem Summary
Probable Cause
Action
Table 8. TFIO problem indications, solution 2
Heartbeat LED blink interval is not normal
Problem Summary
Probable Cause
106
SAN256N Director 2045-N16
Hardware diagnostics have failed.
The board may not be seated properly, or it may be faulty.
Remove and reseat the board. Verify that the latch
mounting screws are tightened to the proper torque. If the
fault persists, try replacing it with another board. If this
works, it verifies that the board you replaced is faulty. Place
the failed board in an antistatic bag, and return it to IBM.
There has been a hardware failure.
The board may not be seated properly, or it may be faulty.