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microsoft / finops-toolkit

Tools and resources to help you adopt and implement FinOps capabilities that automate and extend the Microsoft Cloud.
https://aka.ms/finops/toolkit
MIT License
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Azure Hybrid Use Benefit calculations seem off #730

Open flanakin opened 3 months ago

flanakin commented 3 months ago

Discussed in https://github.com/microsoft/finops-toolkit/discussions/709

Originally posted by **lundejd** May 20, 2024 I finally got around to reviewing the Hybrid Benefit tab and am immediately confused by the numbers. For example, we have a Standard_D2ds_v5 server that has 2 vCPUs. On the bottom that same server is listed but the column vCPUs says 16. I have another of the same Standard_D2ds_v5 that has vCPUs of 2, which is correct, and AHB vCPUs of 8 which is correct. This is only the beginning. Let's say I wanted to license a 16 vCPU server in Azure with AHUB, I would only need to use 16 core licenses to do it. The chart shows 64 and a usage quantity of 24. I would think AHUB should look like this: vCPUs. AHB vCPUs 1 8 2 8 8 8 10 16 16 16 20 24 and so on. minimum 8, multiples of 8. vCPU systems that don't divide into 8 end up with some "wasted" AHUB cores. AHB vCPUs that are enabled should equal UsageQuantity. If I have an 8 vCPU machine enabled for AHUB it should use 8 vCPUs. UsageQuantity seems to be 24 for most. Here is a screen shot with the same size server, the first has accurate info but the following do not. Screenshot 2024-05-20 at 8 42 30 AM
Zainabab00 commented 2 months ago

I have the same issue as @flanakin