3PAR InForm® OS 2.3.1 Messages and Operator's Guide (320-200181 Rev B, February 2010)

7.5
Using the Component LEDs
InForm OS Version 2.3.1 Messages and Operator’s Guide
Table 7-1. Drive Cage DC4 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 not a
connection to the node or SFP is
not installed.
TX Steady green light Indicates the presence of SFP
and the LED is on and
transmitting.
No light Indicates SFP is not 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 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 62°C, or a power
supply has failed.