Hitachi Compute Rack CR 210H User Manual page 17

ERROR LED
The Baseboard Management Controller (BMC), an onboard management
controller of the system unit, turns on the ERROR LED on the front of the system
unit if a hardware error occurs, such as a HDD error, a fan error, a power supply
error, and others.
The sensors having a threshold are lit up in the Critical State (a critical state of
the system unit). But do not turn on in the Uncritical State (a state in which a
component has a failure under redundancy).
MAINTENANCE LEDs
You can choose what is displayed as the operation status from the event code,
the POST code and the power consumption using a SERVICE switch.
A combination of ON/OFF selections of MODE0 LED, MODE1 LED, and SERVICE
LED determines what is currently displayed.
A combination of ON/OFF selections of MODE0 LED, MODE1 LED, and the
SERVICE LED determines what the MAINTENANCE LEDs indicate as follows:
Table 2-2: What the MAINTENANCE LEDs indicate
SERVICE LED
Off
On
Off
When you press a SERVICE switch, the MAINTENANCE LEDs change as follows.
Figure 2-2: MAINTENANCE LEDs indicate pressing of SERVICE switch
MODE0 LED MODE1 LED
Off Off
Off On
On On
Pressing of SERVICE
switch (number: press
count)
Monitoring operating status
Hitachi Compute Rack 210H User's Guide
What the MAINTENANCE
LEDs indicate
Event code
POST code
Power consumption
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