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Appendix - Fault Isolation
deleted.
MTBF
Below MTBF Threshold
The CRU/FRU’s rate of transient and hard
failures became too great.
NOPWR No Power The CRU/FRU lost power.
OVERRD
Cabinet Fan Speed Override
Active
The fan override (setting fans to full power from
the normal 70%) was
activated.
PC Hi
Power Controller Over Voltage
An over-voltage condition was detected by the
power controller.
PCIOPN
PCI Card Bay Door Open
The PCI card-bay door is open.
PCLOW
Power Controller Under
Voltage
An under-voltage condition was detected by the
power controller.
PCVOTE
Power Controller Voter Fault
A voter fault was detected by the power
controller.
PSBAD
Invalid Power Supply Type
The power supply ID bits do not match that of
any supported unit.
PSU OK
Cabinet Power Supply Unit(s)
OK
The cabinet power supply unit(s) are OK.
PSUs
Multiple Power Supply Unit
Faults
Multiple power supply units faulted in a cabinet.
PWR Breaker Tripped
The circuit breaker for the PCIB power supply
tripped.
REGDIF
ACU Registers Differ
A comparison of the registers on both ACUs
showed a difference.
SOFT Soft Error
The driver reported a transient error. A transient
error occurs when a
hardware fault is detected,
but the
problem is corrected by the system. Look
at the syslog for related error
messages.
SPD OK
Cabinet Fan Speed Override
Completed
The cabinet-fan speed override completed.
SPR OK
Cabinet Spare (PCU) OK
The cabinet spare (PCU) is OK.
SPRPCU
Cabinet Spare (PCU) Fault The power control unit spare line faulted.
TEMPOK Cabinet Temperature OK The cabinet temperature is OK.
USER User Reported Error
A user issued ftsmaint disable to disable the
hardware device.
A.6 Troubleshooting Procedures
When a fault occurs, several things can happen. If it is a non-critical fault, the system will continue to process data. If it is
a critical fault, the system (or a subsystem) may be inoperative. When troubleshooting the system, determine the fault
first by using the LEDs and screen messages. Then, verify that the component(s) is out of service using the
ftsmaint
ls
command (PA-8500 Continuum Series 400 Technical Service Guide (HP-UX systems, Section 2.6.3), error logs, and
diagnostic tests. This flow is shown in the Troubleshooting Flow below.