When upgrading AKS nodes on a free account.

Question

안녕하세요.

무료 계정에서 AKS 클러스터를 업그레이드 하는 테스팅을 진행하고 있었습니다.

먼저 제가 문제에 직면하게 된건, 무료 계정에서 모든 지역에서 vCPU를 4밖에 지원이 안됩니다.

하지만, AKS를 배포하기 위해서 가상머신 최소 1개가 필요하고 (최소 사양으로 1vCPU 라고 가정)

노드를 1개만 만들어도 노드 최소 사양이 vCPU 2, 7GB 이기 때문에 여기서 벌써부터 vCPU 3을 소진합니다.

AKS 특성상 업그레이드 진행 시 가용성을 위해 버퍼노드를 추가한 후에 업그레이드를 진행하므로

여기서 요구하는 vCPU는 총 5입니다.

그래서 제가 궁금한거는

첫째, 무료 계정에서 vCPU를 최대 4밖에 지원을 안해주나요?

둘째, 만약 4밖에 지원이 안된다면 새 버퍼노드를 추가시키지 않고 강제로 업그레이드 하는 방법이 있나요?

셋째, 그 외 다른 아이디어가 있나요?

• 모든 방법을 생각하고 동원해봤지만 실패하였습니다. 구독을 업그레이드 하는 방법밖에 없는걸까요?

감사합니다.

Answer 1

Hi @sunghwan.Heo

Teams tag is mainly focused on the general issue of Microsoft Teams troubleshooting. According to your description, your question is not in our support scope.The following suggestion is just for your reference:

There is limitation of 4vCPU on free trial.

Resource Manager vCPU quotas for virtual machines and virtual machine scale sets are enforced at two tiers for each subscription, in each region.

The first tier is the Total Regional vCPUs limit across all VM series. The second tier is the per VM series vCPUs limit, such as the D-series vCPUs. Anytime a new virtual machine is to be deployed, the sum of new and existing vCPUs usage for that VM series must not exceed the vCPU quota approved for that particular VM series. Further, the total new and existing vCPU count deployed across all VM series shouldn't exceed the Total Regional vCPUs quota approved for the subscription. If either of those quotas are exceeded, the VM deployment won't be allowed. You can request an increase of the vCPUs quota limit for the VM series from Azure portal. An increase in the VM series quota automatically increases the Total Regional vCPUs limit by the same amount but quota increase option is not available for Free trial.

You can read more about it here.

You can even check vCPU quota using below command:

Get-AzVMUsage -Location <location>

More info here.

You can switch to the PAY-As-You Go at anytime to remove that. you still get the $200 of services for the first 30 days, but switching means as soon as you hit that $200 you will be charged after that. You can put a spending limit on your subscription to make sure it is under control.

This article is beneficial as well to understand service provided in Free trial.

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