Table 30. Power supply unit LEDs
Function
Color
Status
Description
1
Input power
Green
On
The input voltage is within specification.
Off
No power input detected.
2
DC power
Green
On
DC power outputs are within specification.
Off
DC power is not available.
3
Fault
Amber
On
A fault is detected in the PSU.
Off
No faults are detected.
LEDs inside of the expansion enclosure
Each of the drives and secondary expansion modules within the 5U expansion enclosure has two LED
indicators.
Figure 58 on page 59 shows the components of a drive assembly. Each drive has an online indicator (
2
)
and fault indicator (
3
).
Figure 58. LEDs on a drive assembly
Table 31 on page 59 describes the meaning of the LEDs on each drive.
Table 31. LED indicators on drives
Function
Color
Status
Description
2
Activity
Green
On
The drive is ready to be used.
Flashing
The drive is operating and I/O is occurring.
Off
The drive is not installed or an installed drive is not
ready to be used.
3
Fault
Amber
On
A fault occurred on the drive. The LED is turned off
when the drive is removed and replaced.
Flash
The drive is being identified, a fault might or might not
be detected.
Off
The installed drive is operating normally.
Figure 59 on page 60 shows the LEDs on a secondary expansion module.
Chapter 4. Installing the system hardware 59
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