StatusLED
• Solid green indicates that input from the installed power
supplies is within range
• Amber indicates that power is out of range
Power supply status
Blue LED inside the Expander ID changes state when an ID
command is received
Expander ID
• Solid green indicates the expander is running and system
status is healthy
• Blinking green indicates the system is operating in a de-
graded state, such as loss of redundant power supply or
fan
• Blinking amber indicates an impending failure, although
the system is still operating
• Solid amber indicates that the system is halted or has
failed
Expander status
• Solid green indicates the shelf is powered on
• Off indicates the shelf is powered off
Expander power
Drive LEDs
The following shows the drive and LED indicator lights and describes their functions.
Figure 26: HDD drive LEDs
21 Drive faultDrive operation
Figure 27: SSD drive and carrier LEDs
41 Drive A faultDrive B fault
2 5Drive B operation Drive carrier fault
3 Drive A operation
In an SSD drive carrier, there are two individual drive slots, each with two LEDs. The following table describes the dual flash
carrier LEDs.
Expansion Shelf Components 70
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