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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