Environmental Monitoring Unit
3–22 UltraSCSI RAID Enclosure
Each time the alarm control switch is momentarily pressed, the EMU
initiates the following sequence of actions:
1.
The blower LEDs display the first reported hexadecimal fault
code three times in succession.
— The LEDs display the first reported fault code (for the first
time) for 1 second and then turn O
FF
.
— The LEDs display the first reported fault code (for the second
time) for 1 second and then turn O
FF
.
— The LEDs display the first reported fault code (for the third
time) for 1 second and then turn O
FF
.
2.
After the first reported fault code is displayed three times, the
LEDs sequence the display to present the next reported fault
code.
3.
Steps 1 and 2 repeat for all reported fault codes.
For a detailed explanation of possible fault codes, see Table 3–8. The
numbered corrective actions represent the sequence to follow to
resolve the problem.
.
Table 3–8
EMU Fault Code Displays
Fault Code, Cause, Corrective
Action
EMU LED Display
Fault Code 01
One of the following Boot ROM error
conditions exists:
1.
A Boot ROM Signature failure. Replace the EMU.
2.
A Boot ROM Checksum failure. Replace the EMU.
1
2
3
4
5
6
7
8
CXO6598A
