Main outlets switched off after NMC reboot. Root cause?

BillP · ‎2021-07-26

Hello

I need your advise.

Recently one UPS restart NMC and I see also in logs that power outlets was switched off and on again.

What really happen?

On Background Cisco switch where UPS connected were shutdown.

I understood that NMC rebbot due to problem with switch but why power outlets switched off in 2 minutes?

I attached all needed files and will be very appreciate for deep analyze.

BillP · ‎2021-07-26

Hello Yuriy,

Based from what I have seen before, although the NMC event shows that the outlets turned off and on after the warmstart or network interface restart event doesn't necessarily means that it actually turned off/on the outlet. After the warmstart event, the NMC performs a check on the UPS and that turned off/on event gets logged.

Whenever the NMC restarts, it should not affect the state of the UPS. Do you recall if the UPS dropped the load during the warmstart event?

See Answer In Context

BillP · ‎2021-07-26

Hello Yuriy,

Based from what I have seen before, although the NMC event shows that the outlets turned off and on after the warmstart or network interface restart event doesn't necessarily means that it actually turned off/on the outlet. After the warmstart event, the NMC performs a check on the UPS and that turned off/on event gets logged.

Whenever the NMC restarts, it should not affect the state of the UPS. Do you recall if the UPS dropped the load during the warmstart event?

BillP · ‎2021-07-26

Hello Jonathan

Thank you for feedback, i thinking in the same way just was needed to have approval.

During current incident loading was similar but I recognised that battery capacity was lower.