SentinelRAID 170 Installation and Hardware Reference Manual
3-2
Status-indicating LEDs
Controller monitoring is a necessary part of controller management. If failure events or
other disruptive events are detected and reported, controller managers must take the
appropriate action to rectify the problem. Failure to act in a properly specified manner to
a system event (like overheating) can cause severe and permanent damage to the
controller.
3.2. Status-indicating LEDs
The front panel LCD panel comes with three status-indicating LEDs. The LEDs on the
front panel are marked, from top to bottom,
PWR
,
BUSY
and
ATTEN,
as shown in
Figure 3-1
below. The definitions of these LEDs are shown in
Table 3-1
.
Figure 3-1: LCD Panel LEDs
LED Name
Color
Status
PWR
Blue
ON
indicates that power is being supplied to the controller.
OFF
indicates that no power is being supplied to the
controller.
BUSY
White
ON
indicates that there is activity on the host/drive channels.
OFF
indicates that there is no activity on the host/drive
channels.
ATTEN
Red
ON
indicates that a component failure/status event has
occurred.
OFF
indicates that the controller and all its components are
operating correctly.
Table 3-1: LCD Panel LED Definitions
