How do i stop having a Windows Server Burst billing cargo on Azure Standard B2s VM?

Question

I have a reserved Standard B2s VM on Azure, a Standard HDD, and a IPv4 address in my billing invoice, that i recognize as things that i have asked for, and that i'm willing to pay for. But there is an extra cargo that i don't recognize as something i had asked for, and that i'm concerned for.

As seen in the picture, there is a cargo for something called Windows Server Burst. I haven't activated it, and i don't know how to disable it. It keeps increasing the VM costs, and i really don't know what it is, or how to make it go away. If anyone knows how to do this, I would love to hear how to turn it off. Thanks.

Answer 1

Hello Marcelo,

Welcome to the community! The "Windows Server Burst" is a term commonly used in the context of Azure Virtual Machines (VMs) and disks.

Bursting allows you to temporarily boost the performance of your VMs or disks beyond their usual limits. This can be particularly useful for handling short-term spikes in demand, such as during startup times, batch jobs, or traffic surges12.

For example:

VM Bursting: Allows a VM to exceed its baseline performance for a short period.

Disk Bursting: Allows a disk to exceed its provisioned performance, either through on-demand bursting (incurring additional charges) or credit-based bursting (using accumulated burst credits)

References:

https://learn.microsoft.com/en-us/azure/virtual-machines/sizes/general-purpose/bv1-series?tabs=sizebasic

https://learn.microsoft.com/en-us/azure/virtual-machines/disk-bursting

Answer 2

Hi Marcelo Scerpella,
Thanks for replying back to us

Here below is the explanation about turn off.!
The CPU bursting feature for Windows B-series VMs it by default enable feature and can't be disabled. This means the VM will automatically use extra CPU power when the workload requires it. Since it’s a built-in feature of the B-series, there’s no way to turn it off or change its settings. The good part is that it doesn't charge with extra costs, unless you're using disk bursting with standard & premium SSD, in which case charges may apply depending on available credits

Sizes in series
B Series CPU Credit Model

Note: - Before making any changes or setting things up, please make sure backup and all configuration

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