Selecting issues on Agent Size, Maximum Agents, and Images in Azure Deployment Environment (Create a Managed DevOps Pool)

Question

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Request for help when Selecting the default Agent Size it having issues on Maximum Agent either 1 also can't be accept. After request quota for different Agent Size it will not matching with any of the Images. Please help me to fix this issues. Thank you.

Answer 1

Hi SeanHong

As per the 1st screenshot.

1. The selected agent size (Standard A8m v2) belongs to V1 generation, but the image (Ubuntu Server 24.04 LTS - x64 Gen 2) requires V2. Either select an agent size that supports V2 generation or use an image compatible with V1. Example: Standard_DS1_v2
2. Look for Ubuntu Server images explicitly marked as V1 compatible.

As per the 2nd screenshot,

1. Instead of Standard D2pls v5 (which requires Arm64), select an agent size that supports x64. Examples of x64 agent sizes include Standard_D2s_v5 or Standard_D4s_v5.
2. If you want to keep Standard D2pls v5, select an OS image designed for Arm64.

Additional References:

https://learn.microsoft.com/en-us/azure/devops/managed-devops-pools/quickstart-azure-portal?view=azure-devops

https://learn.microsoft.com/en-us/azure/devops/managed-devops-pools/features-timeline?view=azure-devops

Configure Images

Hope this helps!

Please Let me know if you have any queries.

Answer 2

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After I select Standard_D2s_v5 for Window Server 2022, I still reached the maximum agent limitation. May I know why?

Answer 3

Hi SeanHong

It seems you are facing a quota limitation when attempting to provision the Standard_D2s_v5 size for Windows Server 2022 in the Southeast Asia region. Here are some reasons and suggestions:    

1. The subscription might have a limit on the number of agents allowed per region or pool. Go to Azure Portal -> Subscriptions -> Select your Subscription -> Usage+Quotas to confirm the agent limit for your region. Check if the Standard_D2s_v5 SKU may have reached its quota in your subscription for your selected region. Request an increase if needed. To adjust the quota, you must be part of the Contributor role or higher. Please refer to this doc: Request for quota adjustment.
2. Alternatively, some regions like Southeast Asia may have restrictions on VM allocation due to demand. Try switching to a region where you have existing quota, for example: East US, West Europe, or Southeast Australia.
3. You can choose Standard D2s v5 SKU and the Ubuntu Server 24.04 LTS - x64 Gen 2 image as it is working for me.

Hope this helps!

Please Let me know if you have any queries.

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