Galaxy 65 Troubleshooting
65

7.4.4 Thermal Alarm

7.5 Drive Carrier Module Faults
Disk drive status is monitored by a Green LED and an Amber LED mounted on the front of each Drive
Carrier Module, providing the following indications:
Drive activity - LED may be off for a length of time during power up.

7.5.1 Dummy Carrier Modules

Dummy Carrier modules must be fitted to all unused drive bays to maintain a balanced air flow.
Symptom Cause Action
1Ops Panel FAULT
LED AMBER.
2An AMBER LED on
one or more Power
Supply/Cooling
Modules.
3Audible Alarm
Sounding.
4Air temperature
exiting PSU above
55°C.
If the internal temperature
measured in the airflow through
the enclosure exceeds a pre-
set threshold a thermal alarm
will sound.
1Check local ambient environment
temperature is below the upper 40°C
specification.
2Check the installation for any airflow
restrictions at either the front or rear
of the enclosure. A minimum gap of
25mm at the front and 50mm at the
rear is recommended.
3Check for restrictions due to dust
build-up, clean as appropriate.
4Check for excessive re-circulation of
heated air from rear to the front, use
in a fully enclosed rack installation is
not recommended.
5If possible shutdown the enclosure
and investigate the problem before
continuing.
Table 7–3 LED Functions
State Green Amber
No drive fitted Off Off
Drive Power ON On Off
Drive Activity Blink off Off
Drive Fault On On