Flashing
The SAN Volume Controller is turned off but is still connected to a
power source.
Location
LED
This is the middle of the three LEDs and is not used by the SAN Volume
Controller.
System-error LED
This is the bottom of the three LEDs that indicates that a system board
error has occurred. The light path diagnostics provide more information.
Ac and dc LEDs
The ac and dc LEDs indicate whether the node is receiving electrical current.
Ac LED
The upper LED
1
next to the power supply, indicates that ac current is
present on the node.
Dc LED
The lower LED
2
next to the power supply, indicates that dc current is
present on the node.
Ac and dc LEDs on the SAN Volume Controller 2145-8G4
The ac LED and dc LED are located on the rear of the SAN Volume Controller
2145-8G4.
Figure 4 shows the location of the ac and dc LEDs.
SAN Volume Controller 2145-8G4 connectors
The external connectors for the SAN Volume Controller 2145-8G4 can be easily
located.
1
2
svc00220
Figure 4. SAN Volume Controller 2145-8G4 ac and dc LEDs
12 IBM System Storage SAN Volume Controller: Hardware Installation Guide
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