HP 3PAR T-Class Installation and Deinstallation Guide

Figure 72 Connections and LEDs on the DC4 Drive Cage FC-AL Modules
Consult Table 13 (page 80) to verify proper functioning of the DC4 drive cage FC-AL modules.
Table 13 Drive Cage DC4 FC-AL Module LED Displays
MeaningAppearanceLED
Indicates the presence of a small
form-factor pluggable optical
Steady green lightRX
transceiver (SFP) and a valid signal
from the node.
Indicates there is not a connection to
the node or an SFP is not installed.
No light
Indicates the presence of an SFP and
the LED is on and transmitting.
Steady green lightTX
Indicates an SFP is not present or the
SFP transmitter failed.
No light
Indicates the drive cage is functioning
properly, but is not communicating with
any nodes.
Steady green lightFC-AL status
Indicates the cage is connected and
communicating with the system
manager of a node in the cluster.
Flashing green light (1 blink per
second)
80 Understanding LED Status