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Cisco Bug: CSCun91863 - N5K: NOHMS-2-NOHMS_DIAG_ERR_PS_FAIL with AC/DC Power Supply

Last Modified

Sep 02, 2020

Products (5)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5596T Switch

Known Affected Releases

5.2(1)N1(4)

Description (partial)

Symptom:
Some errors like following might be randomly appeared and this error state will be recovered in 30 seconds.

%NOHMS-2-NOHMS_DIAG_ERR_PS_FAIL: System minor alarm on power supply 2: failed


Following warning may be appeared instead of above error if newer NX-OS is running.

%PFMA-2-PS_HIGH_VIN:  Input Voltage 959 exceeded maximum threshold of 250V for Power supply 2.

Conditions:
When running DC Power Supply on N5K such as  N55-PDC-1100W or  N55-PDC-750W
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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