loadbalancer backend configuration

Question

I have create Load balancer while adding VM's to the Backend pool only one VM is adding and second VM is not adding and getting an error.

error message : Deployment to resource group 'ik8' failed.
Additional details from the underlying API that might be helpful: At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/DeployOperations for usage details.

I am using free trail and i have 2 vm's in same vNet where my lb resides but unable to add the second one but i have configured everything it;s working fine with one VM.

can anyone help me to resolve this issue.

Answer 1

@roshini , By default Azure offers a limit of 150 backend resources per load balancer. If you want to raise the limit or quota above the default limit, open an online customer support request at no charge.

Note : Free Trial subscriptions aren't eligible for limit or quota increases. If you have a Free Trial subscription, you can upgrade to a Pay-As-You-Go subscription.

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Answer 2

@roshini Please refer this thread here with similar issue -https://learn.microsoft.com/en-us/answers/questions/152725/deployment-failure-while-adding-vm-instance-to-bac.html

• If it is Standard load balancer, you can add any virtual machines or virtual machine scale sets in a single virtual network.
• If it is Basic load balancer, you can add Virtual machines in a single availability set or virtual machine scale set.

Please let us know if you have any further questions/concerns and we will be glad to assist. Thank you!

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Please do not forget to "Accept the answer" wherever the information provided helps you to help others in the community.