User manual

15 ACP-2320MB User Manual
Chapter 3 Operation
3.1.2 LED indicators for system status
Four LEDs are placed on the left side of the front panel to indicate system health and
activity. Refer to Table 3.1 for the LED definition summary.
When the system power is on, the POWER LED is always Green.
When the POWER LED is Red, it indicates a redundant power supply failure. To stop
the alarm beep, press the Alarm Reset button. Examine the redundant power supply
module right away and replace the failed module with a working one.
When the HDD LED is blinking Orange, it means the HDD is transmitting data.
When the FAN LED is Red, it indicates a failed cooling fan, and the alarm is also acti-
vated. To stop the alarm beep, press the Alarm Reset button and then replace the
failed fan with a working one immediately.
If the TEMP LED is Red, it means that inside of the chassis is overheated (more than
50° C). An audible alarm will be activated. To stop the alarm beep, press the Alarm
Reset button. Inspect the fan filter and the rear section of the chassis immediately.
Make sure the airflow inside the chassis is smooth and not blocked by dust or other
particles.
3.1.3 LED indicators for SAS / SATA HDD power & status
Each SAS / SATA HDD tray has a pair of LED indicators for displaying the SAS /
SATA HDD power and the activity status. Please refer to Table 3.2 for the LED defini-
tion summary.
When the system power is on and the SAS / SATA HDD is well connected, the HDD
power LED glows steady Green. If it fails to light up, check connect the SAS / SATA
connection. Or please ask a technician to inspect the related cables in the chassis.
When the SAS / SATA HDD is transmitting some data, the HDD LED blinks blue.
Depending on the type of HDD, the HDD LED indications are different. When an SAS
HDD is idle, the HDD LED glows steady blue. When an SATA HDD is idle, the HDD
LED is off.
Table 3.1: LED indicator functions
LED Description Green Orange Red
System power Normal N/A Abnormal
Hard disk drive activity N/A Data access N/A
Temperature in the
chassis
Normal N/A Abnormal
Cooling fan status Normal N/A Abnormal
Table 3.2: SAS / SATA HDD LED indicator functions
LED Description Green Blue
HDD Power HDD power on N/A
HDD Status N/A
Data access: Blinking
Idle: Light (SAS HDD)
No light (SATA HDD)