power supply 2: failed or not powered up

If you are getting the intermittent power supply failure/recovery logs it could be due to a cosmetic bug.

2017 Oct 4 15:20:30 N3K1 %NOHMS-2-NOHMS_DIAG_ERR_PS_FAIL: System minor alarm on power supply 1: failed or not powered up
2017 Oct 4 15:20:47 N3K1 %NOHMS-2-NOHMS_DIAG_ERR_PS_RECOVERED: Recovered: System minor alarm on power supply 1: failed or not powered up
2017 Oct 11 17:05:59 N3K1 %NOHMS-2-NOHMS_DIAG_ERR_PS_FAIL: System minor alarm on power supply 1: failed or not powered up
2017 Oct 11 17:06:04 N3K1 %NOHMS-2-NOHMS_DIAG_ERR_PS_RECOVERED: Recovered: System minor alarm on power supply 1: failed or not powered up
2017 Oct 14 02:17:31 N3K1 %NOHMS-2-NOHMS_DIAG_ERR_PS_FAIL: System minor alarm on power supply 2: failed or not powered up

But before blaming Cisco please verify your environment and make sure there are no physical issues. Command to verify is show environment power and should give you similar output:

N3K1# sh environment ?
<CR>
> Redirect it to a file
>> Redirect it to a file in append mode
fan Fan information
power Power capacity and power distribution information
temperature Temperature sensor information
| Pipe command output to filter

N3K1# sh environment power

 

Power Supply:
Voltage: 12 Volts
———————————————————–
PS Model Input Power Current Status
Type (Watts) (Amps)
———————————————————–
1 N2200-PAC-400W AC 396.00 33.00 ok
2 N2200-PAC-400W AC 396.00 33.00 ok

 

Mod Model Power Current Power Current Status
Requested Requested Allocated Allocated
(Watts) (Amps) (Watts) (Amps)
— ———————- ——- ———- ——— ———- ———-
1 N3K-C3548P-10GX-SUP 349.20 29.10 349.20 29.10 powered-up

 

Power Usage Summary:
——————–
Power Supply redundancy mode: Redundant
Power Supply redundancy operational mode: Redundant

Total Power Capacity 792.00 W

Power reserved for Supervisor(s) 349.20 W
Power currently used by Modules 0.00 W

————-
Total Power Available 442.80 W

If your power supplies looking good than it means you probably hit a cometic bug CSCva03834.

Upgrading your firmware should remediate it.

Cheers,

Bart 🙂

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