NIC indicator codes
Each NIC on the back of the system has indicators that provide information about the activity and link status. The activity LED
indicator indicates if data is flowing through the NIC, and the link LED indicator indicates the speed of the connected network.
Figure 133. NIC indicator codes
1. Link LED indicator
2. Activity LED indicator
Table 28. NIC indicator codes
NIC indicator codes
Condition
Link and activity indicators are off.
Indicates that the NIC is not connected to the network.
Link indicator is green, and activity indicator is blinking
green.
Indicates that the NIC is connected to a valid network at its maximum
port speed, and data is being sent or received.
Link indicator is amber, and activity indicator is blinking
green.
Indicates that the NIC is connected to a valid network at less than its
maximum port speed, and data is being sent or received.
Link indicator is green, and activity indicator is off.
Indicates that the NIC is connected to a valid network at its maximum
port speed, and data is not being sent or received.
Link indicator is amber, and activity indicator is off.
Indicates that the NIC is connected to a valid network at less than its
maximum port speed, and data is mot being sent or received.
Link indicator is blinking green, and activity is off.
Indicates that the NIC identify is enabled through the NIC
configuration utility.
Power supply unit indicator codes
AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The indicator shows if power is
present or if a power fault has occurred.
Drive indicator codes
The LEDs on the drive carrier indicates the state of each drive. Each drive carrier has two LEDs: an activity LED (green) and a
status LED (bicolor, green/amber). The activity LED blinks whenever the drive is accessed.
NOTE:
If the drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not power on.
NOTE:
Drive status indicator behavior is managed by Storage Spaces Direct. Not all drive status indicators may be used.
Table 29. Drive indicator codes
Drive status indicator code
Condition
Blinks green twice per second
Indicates that the drive is being identified or preparing for removal.
Off
Indicates that the drive is ready for removal.
NOTE:
The drive status indicator remains off until all drives are
initialized after the system is powered on. Drives are not ready
for removal during this time.
130
System diagnostics and indicator codes