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2-12 SPARC Enterprise M3000 Server Service Manual • November 2009
Hard disk drive
(HDD)
Indicates that the hard disk drive can be removed. However,
this LED is not used.
CHECK On (amber) Indicates that an error occurred in the HDD. However, this
LED stays on for several minutes (until initialization starts)
immediately after power-on. This state does not indicate an
error.
Blinking
(amber)
Indicates that the HDD is ready to be replaced.
Off Indicates that the HDD is in the normal state.
READY On (green) Indicates that the HDD is operating. The HDD cannot be
removed (cannot be replaced).
Blinking
(green)
Indicates that the HDD is performing communication.
The HDD cannot be removed (cannot be replaced).
Off The HDD can be replaced.
Power supply unit
(PSU)
DC On (green) Indicates that power is turned on and being supplied.
AC On (green) Indicates that input power is being supplied to the power
supply unit.
Off Indicates that input power is not being supplied to the power
supply unit.
CHECK On (amber) Indicates that an error occurred in the PSU.
Blinking
(amber)
Indicates that the power supply unit is ready to be replaced.
Off Indicates that the PSU is in the normal state.
Fan unit (FAN_A) CHECK On (amber) Indicates that an error occurred in the fan unit.
Blinking
(amber)
Indicates that the fan unit is ready to be replaced.
Off Indicates that the fan unit is in the normal state.
TABLE 2-5 Component LEDs and Their Functions (Continued)
Component Name Color Description
OK