3PAR InForm® OS 2.2.4 Messages and Operator's Guide (320-200119 Rev A, March 2009)

7.10
Using the Component LEDs
InForm OS Version 2.2.4
3PAR Confidential
Table 7-2. DC4 Drive Cage FC-AL Module LED Displays
LED Appearance Meaning
RX Steady green light Indicates the presence of small
form-factor pluggable optical
transceiver (SFP) and a valid
signal from the node.
No light Indicates there is no connection
to the node or no SFP installed.
TX Steady green light Indicates the presence of SFP
and the LED is on and
transmitting.
No light Indicates no SFP is present or
the SFP transmitter failed.
FC-AL status Steady green light Indicates the drive cage is
functioning properly, but is not
communicating with any nodes.
Flashing green light (1 blink
per second)
Indicates that the cage is
connected and communicating
with the system manager of a
node in the cluster.
Steady amber light Normal, initial indication for
two seconds upon power up.
Otherwise, indicates FC-AL
module error or other cage
error. If both FC-AL modules
have a steady light, the
temperature of a disk drive has
exceeded 55°C, or a power
supply has failed.