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Port LED diagnostics
Port operational states
Table 21
Port
Green
state
LED
Online
On or
Blinking
Offline
Off
Off
Beaconing
Off, On, or
Blinking
Invalid
On
Attachment
Link
Off
Incident
Link Reset
Off
No Light
Off
Inactive
On
Not
Off
Installed
Not
Off
Operational
Fibre Channel port diagnostic information is obtained by inspecting
port LEDs at the product front panel or emulated port LEDs at the
management interface (EFCM Basic Edition interface or SAN
management application). LEDs adjacent to each port and software
alert symbols indicate operational status as described in
Amber
Alert
LED
symbol
Off
None
Off
None
Off
Yellow Triangle
Blinking
Yellow Triangle
Off
Yellow Triangle
Off
Yellow Triangle
Off
Yellow Triangle
Off
None
Off
Yellow Triangle
Off
None
Off
Yellow Triangle
Description
An attached device is ready to communicate, or is
communicating with other devices. Green LED illuminates.
Port is blocked and transmitting the offline sequence (OLS) to
attached device.
Port is unblocked and receiving the OLS, indicating attached
device is offline.
Port is beaconing. Amber LED blinks once every two seconds
to enable users to locate port.
Port has an invalid attachment. Reason appears as
supplementary data in the Event Log.
Link incident occurred. Reason appears in the Link Incident
Log.
Product and attached device are performing a link reset to
recover the connection. Transient state that does not persist.
No signal (light) is received at product port. Normal condition
when no cable is attached to port or when attached device is
powered off.
Port is inactive. Reason appears at Port List View or Port
Properties dialog box.
Optical transceiver not installed in the port.
Port is receiving the not operational sequence (NOS) from
attached device.
Chapter 4: Repair information
Table
21.
155
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