Hello,
I was alerted to a power supply not available on a C3850 switch. When I checked the output of the show env all command, I found this:
EGV-FDCPHY-SW01#sh env all
Switch 1 FAN 1 is OK
Switch 1 FAN 2 is OK
Switch 1 FAN 3 is OK
FAN PS-1 is OK
FAN PS-2 is OK
Switch 1: SYSTEM TEMPERATURE is OK
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C1-1100WAC DTN1906V0B0 OK Good Good 1100
1B PWR-C1-1100WAC DTN1906V0AX No Response Good Good 1100
When I did a physical check of the switch, the power supply lights were on as normal. I decided to reseat the power supply and got these messages in the log:
Mar 16 23:35:43.735 CDT: %NGWC_PLATFORM_FEP-1-FRU_PS_ACCESS: Switch 1: power supply B is not responding
...
Mar 17 08:33:56.414 CDT: %NGWC_PLATFORM_FEP-1-FRU_PS_ACCESS: Switch 1: power supply B is not responding
Mar 17 08:38:27.379 CDT: %NGWC_PLATFORM_FEP-1-FRU_PS_SIGNAL_FAULTY: Switch 1: signal on power supply B is faulty <<<<<<unplugged power cord
Mar 17 08:38:39.471 CDT: %NGWC_PLATFORM_FEP-6-FRU_PS_OIR: Switch 1: FRU power supply B removed
Mar 17 08:38:46.520 CDT: %NGWC_PLATFORM_FEP-6-FRU_PS_OIR: Switch 1: FRU power supply B inserted
Mar 17 08:38:46.520 CDT: %NGWC_PLATFORM_FEP-1-FRU_PS_ACCESS: Switch 1: power supply B is not responding <<<<<<<Finished reseating power supply
Mar 17 08:38:52.668 CDT: %NGWC_PLATFORM_FEP-1-FRU_PS_SUSTAINED_OVERLOAD_RECOVERY: Switch 1: power supply B recovered from sustained overload condition. <<<<<<<<woah, after plugging power back in.
I did a show tech and checked the log and there isn't an indication that power supply B became overloaded in the first place. Is this nothing worry about, or does it point to an issue with the switch, power supply, or my datacenter power?
Thank you.
