Power Utilization not fully calculated

[craigmoscardini]

Deployment Type

Self-hosted

Triage priority

N/A

NetBox Version

4.0.9

Python Version

3.11

Steps to Reproduce

1. Create power panel & power feed assigned to rack
2. Connect PDUs and devices and see power utilization on the rack does not work correctly

In my initial example I had

• Panel
  • Feed
    • PDU 1
      • PDU 2
        • Devices
      • UPS
        • Devices

In this example the UPS has a maximum and assigned draw and is included in the calculation. PDUs do not have a power draw assigned All devices do have a power draw assigned

Set up like this no devices connected to the PDUs are included in the calculation. By setting a draw on PDU2 it was included in the calculation but never including the connected devices downstream from it.

I can reproduce this same behaviour on the current demo v4.1.4

Expected Behavior

Rack power utilization should be a sum of all correctly cabled devices that have maximum/allocated power draw on the device

Observed Behavior

Power calculation is incomplete. It does not propagate through all downstream devices regardless of configuration

[sleepinggenius2]

This is a known issue and there was a lot of discussion on the topic back in #3377, but unfortunately it has never gotten to an acceptable implementation.

[arthanson]

@craigmoscardini can you please re-open this as a feature request and link it to #3377