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SUPERSERVER 6028TR-DTR/D72R User's Manual
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Control Panel LEDs
In addition to the LEDs built into the power and UID buttons, each of the control
panels located on the front of the SC827HD-R1K28BP chassis has two LEDs that
provide you with critical information related their own node. This section explains
what each LED indicates when illuminated and any corrective action you may need
to take.
Overheat/Fan Fail
When this LED is solid on it indicates an overheat condition. When it flashes quickly
(~ once every second), it indicates a fan failure. When it flashes slowly (~ once every
four seconds) on the node A control panel, it indicates a power supply failure. An
overheat condition may be caused by cables obstructing the airflow in the system
or the ambient room temperature being too warm. Check the routing of the cables
and make sure all fans are present and operating normally. You should also check
to make sure that the chassis cover is properly installed. Finally, verify that the
heatsinks are installed properly (see Chapter 5). This LED will remain flashing or
on as long as the indicated condition exists.
NIC
Indicates network activity on any of the LAN ports when flashing
3-4
Hard Drive Carrier LEDs
Each SAS/SATA drive carrier has two LEDs.
•
Green: When illuminated, the green LED on the front of the drive carrier indi-
cates drive activity. A connection to the SAS/SATA backplane enables this LED
to blink on and off when that particular drive is being accessed.
•
Red: The red LED serves two functions:
•
When solid on (not flashing), this LED indicates a hard drive failure.
•
When this LED flashes on and off it indicates the HDD is rebuilding.
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