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Rack Power Utilization always at 0% #6081

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opened 2025-12-29 19:36:32 +01:00 by adam · 3 comments
adam commented 2025-12-29 19:36:32 +01:00
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Originally created by @QuentinN42 on GitHub (Feb 12, 2022).

NetBox version

v3.1.7

Python version

3.9

Steps to Reproduce

  1. Create some devices with power ports
    image

  2. Create a Rack

  3. Add the devices to the rack
    image

  4. Create a power panel with some power feeds
    image

  5. Link all feeds to the created rack
    image

  6. Link all feeds to the devices power ports

Cf.

Expected Behavior

The power utilization must have a value.

Observed Behavior

The power utilization is still at 0%.
image

Originally created by @QuentinN42 on GitHub (Feb 12, 2022). ### NetBox version v3.1.7 ### Python version 3.9 ### Steps to Reproduce 1. Create some devices with power ports ![image](https://user-images.githubusercontent.com/32516498/153708756-0586114c-aad1-46f0-b1cd-a11c1e44e28c.png) 2. Create a Rack 3. Add the devices to the rack ![image](https://user-images.githubusercontent.com/32516498/153708768-6896b3fb-36aa-4cf8-9797-79be719d4bbe.png) 4. Create a power panel with some power feeds ![image](https://user-images.githubusercontent.com/32516498/153708784-187702ac-ddae-45b2-83cf-b22108549e74.png) 5. Link all feeds to the created rack ![image](https://user-images.githubusercontent.com/32516498/153708724-8c050367-f72a-4f9f-b853-e9e9ab81ed60.png) 6. Link all feeds to the devices power ports Cf. - [netbox demo](https://demo.netbox.dev/dcim/racks/43/) - [Slack thread](https://app.slack.com/client/T01P0D0366B/C01P0FRSXRV/thread/C01P0FRSXRV-1644597945.142099) ### Expected Behavior The power utilization must have a value. ### Observed Behavior The power utilization is still at 0%. ![image](https://user-images.githubusercontent.com/32516498/153708710-3cf69f48-ba84-4249-a0bc-cbbc5f1cbfcf.png)
adam added the type: bugpending closure labels 2025-12-29 19:36:32 +01:00
adam closed this issue 2025-12-29 19:36:32 +01:00
adam commented 2025-12-29 19:36:33 +01:00
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@jeremystretch commented on GitHub (Mar 1, 2022):

The power utilization within a rack calculates power draw from power outlets to power ports. (The expectation is that a PDU within a rack distributes power from a power feed to consuming devices.) In the example above, you've connected power ports directly to individual power feeds, so it does not count as being utilized.

I suspect that you're modeling PDUs as power panels rather than devices. If you model them instead as devices with power outlets, the power calculation should work as intended.

@jeremystretch commented on GitHub (Mar 1, 2022): The power utilization within a rack calculates power draw from power outlets to power ports. (The expectation is that a PDU within a rack distributes power from a power feed to consuming devices.) In the example above, you've connected power ports directly to individual power feeds, so it does not count as being utilized. I suspect that you're modeling PDUs as power panels rather than devices. If you model them instead as devices with power outlets, the power calculation should work as intended.
adam commented 2025-12-29 19:36:33 +01:00
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@markkuleinio commented on GitHub (Mar 7, 2022):

The expectation is that a PDU within a rack distributes power from a power feed to consuming devices.

@jeremystretch can you check the discussion https://github.com/netbox-community/netbox/discussions/8725, I believe I have modelled the power ports+outlets correctly, but the calculation stops at one level. Should I take your comment above that there is no intention to support PDUs connecting to PDUs, or is it worth opening an issue for adding support for hierarchical power calculation (or fixing the bug)?

@markkuleinio commented on GitHub (Mar 7, 2022): > The expectation is that a PDU within a rack distributes power from a power feed to consuming devices. @jeremystretch can you check the discussion https://github.com/netbox-community/netbox/discussions/8725, I believe I have modelled the power ports+outlets correctly, but the calculation stops at one level. Should I take your comment above that there is no intention to support PDUs connecting to PDUs, or is it worth opening an issue for adding support for hierarchical power calculation (or fixing the bug)?
adam commented 2025-12-29 19:36:33 +01:00
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@jeremystretch commented on GitHub (Mar 24, 2022):

@markkuleinio My comment above applies to the conditions described in this bug report. If you'd like to discuss an alternate setup, you're welcome to open a separate issue.

I'm going to close this out as I believe the OP's issue has been addressed.

@jeremystretch commented on GitHub (Mar 24, 2022): @markkuleinio My comment above applies to the conditions described in this bug report. If you'd like to discuss an alternate setup, you're welcome to open a separate issue. I'm going to close this out as I believe the OP's issue has been addressed.
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