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Available power should decrement when downstream devices consume it. #2580

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opened 2025-12-29 18:20:06 +01:00 by adam · 1 comment
adam commented 2025-12-29 18:20:06 +01:00
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Originally created by @ghost on GitHub (May 3, 2019).

Environment

  • Python version: 3.6.6
  • NetBox version: develop-2.6

Proposed Functionality

Currently, when viewing power utilization on a device that is feed-connected, Available Power doesn't change when power ports that consume it are connected.

This requires the user to perform some mental arithmetic to figure out the remaining resource.

As an example, on a single-phase feed allocated 5760W (240v, 30A feed, 80% utilization cap), when a device is attached to an outlet consuming a maximum of 800 watts, the available power of that feed will always display 5760, instead of reducing by the consumption value of attached power ports.

Use Case

When planning for new devices, it would be convenient to be able to view the 'remaining' wattage available from a PDU or phase.

Currently:

  1. User views PDU or UPS style device (feed-connected, with available outlets)
  2. User sees that the available power on the feed is 5760W, but that 3230W are currently allocated.
  3. User is trying to plan for a device that consumes 2500W
  4. User reaches for a calculator

Proposed:

  1. User views PDU or UPS style device (feed-connected, with available outlets)
  2. User sees that the available power on the feed is 2530W, because 3230W are currently allocated.
  3. User needs to install a device that consumes 2500W, and now understands that this is available.

Database Changes

None.

External Dependencies

None.

Originally created by @ghost on GitHub (May 3, 2019). <!-- NOTE: This form is only for proposing specific new features or enhancements. If you have a general idea or question, please post to our mailing list instead of opening an issue: https://groups.google.com/forum/#!forum/netbox-discuss NOTE: Due to an excessive backlog of feature requests, we are not currently accepting any proposals which significantly extend NetBox's feature scope. Please describe the environment in which you are running NetBox. Be sure that you are running an unmodified instance of the latest stable release before submitting a bug report. --> ### Environment * Python version: 3.6.6 <!-- Example: 3.5.4 --> * NetBox version: develop-2.6 <!-- Example: 2.3.6 --> <!-- Describe in detail the new functionality you are proposing. Include any specific changes to work flows, data models, or the user interface. --> ### Proposed Functionality Currently, when viewing power utilization on a device that is feed-connected, Available Power doesn't change when power ports that consume it are connected. This requires the user to perform some mental arithmetic to figure out the remaining resource. As an example, on a single-phase feed allocated 5760W (240v, 30A feed, 80% utilization cap), when a device is attached to an outlet consuming a maximum of 800 watts, the available power of that feed will always display 5760, instead of reducing by the consumption value of attached power ports. <!-- Convey an example use case for your proposed feature. Write from the perspective of a NetBox user who would benefit from the proposed functionality and describe how. ---> ### Use Case When planning for new devices, it would be convenient to be able to view the 'remaining' wattage available from a PDU or phase. Currently: 1. User views PDU or UPS style device (feed-connected, with available outlets) 2. User sees that the available power on the feed is 5760W, but that 3230W are currently allocated. 3. User is trying to plan for a device that consumes 2500W 4. User reaches for a calculator Proposed: 1. User views PDU or UPS style device (feed-connected, with available outlets) 2. User sees that the available power on the feed is 2530W, because 3230W are currently allocated. 3. User needs to install a device that consumes 2500W, and now understands that this is available. <!-- Note any changes to the database schema necessary to support the new feature. For example, does the proposal require adding a new model or field? (Not all new features require database changes.) ---> ### Database Changes None. <!-- List any new dependencies on external libraries or services that this new feature would introduce. For example, does the proposal require the installation of a new Python package? (Not all new features introduce new dependencies.) --> ### External Dependencies None.
adam closed this issue 2025-12-29 18:20:06 +01:00
adam commented 2025-12-29 18:20:07 +01:00
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@jeremystretch commented on GitHub (Jun 20, 2019):

I believe this has been sufficiently addressed in the final v2.6 release.

@jeremystretch commented on GitHub (Jun 20, 2019): I believe this has been sufficiently addressed in the final v2.6 release.
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Reference: starred/netbox#2580
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