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Chapter 3: Monitoring
3.2 Status-indicating LEDs
3.2.1 Brief Overview of the LEDs
The following devices come with LEDs that inform subsystem managers about the
operational status of the component on which they are mounted. The EonStor
subsystems feature status-indicating LEDs distributed over the active components in
the following ways:
Component LED(s) per Unit Total LEDs Definition
Drive Trays
2 24 – A12U
16 – A08U
See Section 3.2.5
Controller Module
5 5 See Section 3.2.2
Ethernet Ports
2 2 See Section 3.2.3
BBU Module
(if BBU
is installed)
1 1 See Section 3.2.6
PSU Module
1 2 See Section 3.2.7
LCD Keypad Panel
3 3 See Section 3.2.4
Cooling Module
1 3 – A12U
2 – A08U
See Section 3.2.8
Table 3-1: LED Distribution
LED definitions are given in the following sections.
3.2.2 Controller Module LEDs
The rear-facing faceplate of the RAID controller module is shown in Figure 3-1 for
model A12U-G2421. The rear-facing faceplates on the two models look identical.
The LEDs are numbered from 1 to 5. There are two more LEDs on the Ethernet port.
The definitions are shown in Table 3-2 below.
Figure 3-1: A12U-G2421 Controller Faceplate
3-3
Status-indicating LEDs