Status Leds And Buttons; Front Panel Leds - Cisco UCS C240 M4 Installation And Service Manual

Status LEDs and Buttons

Status LEDs and Buttons
This section describes the location and meaning of LEDs and buttons and includes the following topics
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Front Panel LEDs

Figure 3-1
The small form factor (SFF) drives, 24-drive version and the SFF drives, 16-drive version are shown.
Figure 3-1
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Cisco UCS C240 M4 Server Installation and Service Guide
3-2
Front Panel LEDs, page 3-2
Rear Panel LEDs and Buttons, page 3-5
Internal Diagnostic LEDs, page 3-8
shows the front panel LEDs.
Front Panel LEDs
1
Hard drive fault LED (on each drive tray)
Hard drive activity LED (on each drive tray)
Power button/power status LED
Unit Identification button/LED
System status LED
Table 3-1 defines the LED states.
2
1 2
HDD01 HDD02
HDD03 HDD04
HDD05 HDD06
HDD07 HDD08
6
Fan status LED
7
Temperature status LED
8 Power supply status LED
9 Network link activity LED
Chapter 3 Maintaining the Server
3 4 6 8
5 7 9
HDD09 HDD10
HDD11 HDD12
HDD13 HDD14
HDD15 HDD16
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