I/O module LEDs
LEDs on the I/O module provide status information about each I/O port and the entire module.
NOTE: The following image illustrates LEDs on the Small Form Factor I/O module.
DescriptionLED statusLED colorLED iconLED
No cable, no power, or port not
connected
OffGreenn/a1. SAS Port Link
The port is being identified by an
application client
Blinking
Healthy, active linkSolid
Normal, no errors detectedOffAmbern/a2. SAS Port Error
Error detected by application clientBlinking
Error, fault conditions detected on
the port by the I/O module
Solid
No cable, no power, enclosure not
detected
Offn/an/a3. 7–segment
display
The enclosure box numberNumber
Not being identified or no powerOffBlue4. UID
Module is being identified, from
the management utility
Solid
No power or firmware malfunctionOffGreen5. Health
Enclosure is starting up and not
ready, performing POST
Blinking
Normal, power is onSolid
Normal, no fault conditionsOffAmber6. Fault
A fault of lesser importanceBlinking
A fault of greater importance, I/O
failed to start
Solid
Rear power and UID module
The rear power and UID module includes status LEDs, a unit identification (UID) button, and the
power on/standby button.
SAS disk enclosures 19