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62 Netra t 1400/1405 Installation and User’s Guide September 1999
Diagnosing PSU Faults
If a PSU suffers an internal failure (that is, its output fails while input power is still
applied), the Fault LED will flash and the event will be recorded as described above.
For example, the message
LOM event: PSU 2 Output failed
may be displayed on the LOMlite console and
Sep 7 11:44:20 hostname lomlited: LOMlite PSU 1 Output failed
may be displayed on the Solaris console. Note that an event will be issued if the
Fault LED is not already on, indicating that the LED has been set to flash. If a PSU
output failure occurs, the PSU should be replaced.
If the PSU suffers an external failure (that is, one or more of its inputs fail), the Fault
LED will not flash as the fault is external to the system but the fault will still be
reported as, for example:
LOM event: PSU 2 InA failed
In the Netra t 1400 system, the LED corresponding to the failed supply (A or B) will
go off.
Once the fault has been corrected, you can clear the event log using the Solaris
lomctl clearevents command. This will automatically extinguish the Fault LED
if it is lit. You can also turn off the Fault LED using either the LOMlite console
command faultoff, or the Solaris utility lomctl faultoff.
To display the current status of the PSUs, use the LOMlite console environment
command or the Solaris utility lominfo psu.
Diagnosing Fan Faults
If the speed of a monitored fan drops below a pre-defined limit, the Fault LED will
flash and the event will be reported as described above. For example, the message
LOM event: Fan 3 failed
may be displayed on the LOMlite console, and
Sep 7 11:44:20 hostname lomlited: LOMlite: Fan 3 failed
may be displayed on the Solaris console. Note that an event will be issued if the
Fault LED is not already on, indicating that the LED has been set to flash. If a fan
failure occurs, the fan should be replaced.
LW3User.book Page 62 Wednesday, November 10, 1999 9:00 AM
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