Instruction Manual

If the Port Bypass LEDs are blinking at a constant rate and the POST Fault LED is On, the switch detected a
fault during the POST. When a POST detects a fault, contact your authorized service representative.
Reading the switch LEDs
The Fibre Chan
nel switch contains both system LEDs and por t LEDs. The system LEDs indicate the status
of the switch, and the port LEDs provide status of a specificport. Figure 43 shows the Fibre Channel
switch with the system and port LEDs.
Rear
Front
Bezel
CXO7884
A
3
4 6
5
1
2
Figure 43
Fibre Channel switch LEDs
1. SFP Status LED
2. Port Bypassed LED
3. POST Fau
lt LED
4. Over Temp LED
5. Power LED
6. Loop Ope
rational LED
Table 23 describes the system LEDs.
Tabl e 23 Fibre Channel switch system LEDs
System LED Description
Power
A green LED. When lit, this LED indicates that the switch is plugged in and the
intern
al power is functional.
Loop Operational A green LED. When lit, this LED indicates that the Fibre Channel loop has
completed initialization and is now operational.
POST Fault
An amber LED. When lit, this LED indicates that the internal hardware self-test
failed and the switch will not function.
Over T
emp
An amb
er LED. When lit, this LED indicates that the ambient temperature has
excee
ded 45 °C. The switch is still functional; however you should correct
the p
roblem immediately. The Over Temp LED turns off when the problem
is co
rrected.
Tabl
e24describes the port LEDs.
92
Storage system hardware components