4/8 and 4/16 SAN Switch port LED patterns

Each port includes two LEDs: a Port Speed indicator and a Port Status indicator. Table 11 describes the LED locations, colors, and recommended actions.

Table 11 Port LED patterns during normal operation

LED name

LED color

Hardware status

Recommended action

 

 

 

 

Port Status

No light

No power or signal

Check SFP and cable.

 

 

carrier (SFP or cable)

 

 

 

detected.

 

 

 

 

 

 

Steady green

Port is online

No action required.

 

 

(connected to external

 

 

 

device) but has no

 

 

 

traffic.

 

 

 

 

 

 

Slow flashing

Port is online but

Verify that the correct device is connected

 

green (1

segmented, indicating

to the port and that the switch and port

 

second on, 1

a loopback cable or

settings are correct.

 

second off)

incompatible switch.

 

 

 

 

 

 

Fast-flashing

Port is in internal

No action required.

 

green (1/4

loopback (diagnostic).

 

 

second on, 1/4

 

 

 

second off)

 

 

 

 

 

 

 

Flickering green

Port is online with traffic

No action required.

 

 

flowing through it.

 

 

 

 

 

 

Steady amber

Port is receiving light or

No action required.

 

 

signal carrier, but is not

 

 

 

yet online.

 

 

 

 

 

 

Slow-flashing

Port is disabled as the

Enable the port using the portenable

 

amber (1

result of diagnostics

command; see the Fabric OS command

 

second on, 1

or portdisable

reference guide for more information.

 

second off)

command.

If all ports are slow-flashing amber, enable

 

 

If all ports are

the switch (switchenable command).

 

 

slow-flashing amber,

 

 

 

the switch may be

 

 

 

disabled.

 

 

 

 

 

 

Fast-flashing

Port is faulty.

Check the Port Status LEDs, error log, SFP,

 

amber (1/4

 

and cable or loopback plug.

 

second on, 1/4

 

Clear the error log.

 

second off)

 

Rerun the diagnostics to verify that the error

 

 

 

 

 

 

condition is fixed.

 

 

 

 

 

Alternating

Port is bypassed.

Check configuration of FC loop.

 

green and

 

 

 

amber

 

 

 

 

 

 

72

Managing SAN Switches

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IBM AA-RWF3A-TE manual 4/16 SAN Switch port LED patterns, Port LED patterns during normal operation
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