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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(115.19999999999999, 27%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELM%3C/text%3E%3C/svg%3E)
i am trying to resize the VM with the list of applicable resize option from azure api with the quota limit validation while upgrading. seems there is no direct option and with custom logic removing number (Standard_DS1_v2 -> StandardDSv2Family; Standard_F2s -> StandardFsFamily) i was able to match most series. but as exception series B (Standard_B1ls, Standard_B4ms), A (Standard_A2m_v2, Standard_A1) M (Standard_M32-8ms) i was not able to match it.
is there any generic or other way to match and get the quota limit
Region: West US 2; Current Size: Standard D2s v3 (2 vcpus, 8 GiB memory); OS: Linux (ubuntu 20.04); Desired Size: Standard_B2ms
consumed all relevant data through Azure REST api from VS 2019. need to implement it programmatically
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(32, 3%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMG%3C/text%3E%3C/svg%3E)
Hi Lenin Mathivanan,
Thank you for reaching out to the Microsoft Q&A platform.
Could you please provide us the below details.
What is the current series you are using.
What is the current size of the VM.
What is the OS for the VM.
What is the desired size you want to change.
Region: West US 2
Current Size: Standard D2s v3 (2 vcpus, 8 GiB memory)
OS: Linux (ubuntu 20.04)
Desired Size: Standard_B2ms
consumed all the relevant data from azure rest api with VS2019, need to implement it programatically
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(300.8, 3%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESK%3C/text%3E%3C/svg%3E)
Hi Lenin Mathivanan,
To map the Azure VM size name with its quota family name programmatically, you can use the Azure Resource SKUs API. This API provides a direct and reliable way to retrieve the family property for each VM size, ensuring accurate mapping without relying on custom parsing logic.
Steps to Follow:
Query the Azure Resource SKUs API to list all available VM sizes (ResourceType = "virtualMachines") in your subscription, including their name (e.g., Standard_D2s_v3) and family (e.g., StandardDSv3Family). Filter the results for the specific region you are working with (e.g., West US 2) to ensure you only retrieve VM sizes available in that location.
Use the family property from the API response to map both the current size (Standard_D2s_v3) and desired size (Standard_B2ms) to their respective quota families. Compare the quota families of the current and desired sizes. If they match, the desired size can be used within the same quota. Otherwise, you may need to adjust the quota for the new family.
The API ensures accuracy, including edge cases like B, A, and M series VMs, eliminates the need for custom logic to derive family names, and integrates seamlessly with automation workflows.
For more information, please refer to the below documentation:
Azure Resource SKUs API
Azure Virtual Machine Sizes Naming Conventions
Check vCPU Quotas - Azure Virtual Machines
If you have any further queries, do let us know. If the comment is helpful, please click "Upvote".
Hi Lenin Mathivanan,
Just checking in to see if you had a chance to see our response to your question. Please tell us if it was helpful and feel free to reach out to us if you have any queries.
If you have any extra questions about this answer, please click "Comment".
Thank you.
Hello Lenin Mathivanan,
I wanted to follow up with you to check if the above response helped you with your queries. If it did, I would request you to please accept the response as Answer, so that it helps others with similar questions too in the community.
Thank you.