A SERVICE OF

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Power supply LED
Each power supply has one LED, viewable from the back side of the DS4500, as
shown in Figure 92.
OUT
IN
!
2Gb/s
1Gb/s
OUT
IN
!
2Gb/s
1Gb/s
OUT
IN
!
2Gb/s
1Gb/s
OUT
IN
!
2Gb/s
1Gb/s
OUT
IN
!
2Gb/s
1Gb/s
OUT
IN
!
2Gb/s
1Gb/s
OUT
IN
!
2Gb/s
1Gb/s
OUT
IN
!
2Gb/s
1Gb/s
Power Supply
Green LED: power supply
is operating properly
Normal status: On
Problem status: Off
GS000064b
Table 22 describes the power supply LED.
Table 22. Power supply LED
LED Color Normal status
Problem
status
Possible conditions indicated by the
problem status
1
Power supply Green On Off
v The power supply has failed or is turned
off.
v The temperature of the DS4500 is too
high.
1
Always use the storage-management software to identify the failure.
Figure 92. Fan and communications module LED
Chapter 4. Operating the storage subsystem 133