# How to size Azure Kubernetes for Elastic deployment

**URL:** <https://discuss.elastic.co/t/how-to-size-azure-kubernetes-for-elastic-deployment/292842>\
**Category:** Elastic Cloud on Kubernetes (ECK)\
**Created:** [December 23, 2021, 7:08pm UTC](https://discuss.elastic.co/t/how-to-size-azure-kubernetes-for-elastic-deployment/292842 "2021-12-23T19:08:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jthoni](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@jthoni](https://discuss.elastic.co/u/jthoni)\
**Post date:** [December 23, 2021, 7:08pm UTC](https://discuss.elastic.co/t/how-to-size-azure-kubernetes-for-elastic-deployment/292842/1 "2021-12-23T19:08:27Z")

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We are currently running a 50 node cluster (with 40 data nodes) on VMs in Azure. I am looking into converting to running in AKS. I am having trouble figuring out how to determine the resources I need in my AKS cluster to host the ES nodes. My cluster is current running on Standard\_E8s\_v3 machines (8 cpu / 64 gb). I am not clear on how to calculate how many AKS nodes I need to be able to run a 50 ES nodes. Is it a 1:1 mapping (i.e., I would need 50 AKS nodes), or is running in containers more efficient and each ES node won't need full utilization of all 8 cores, etc.?

Thanks!

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**Author:** ![michael.morello](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/michael.morello/32/47448_2.png) [@michael.morello](https://discuss.elastic.co/u/michael.morello)\
**Post date:** [January 6, 2022, 2:08pm UTC](https://discuss.elastic.co/t/how-to-size-azure-kubernetes-for-elastic-deployment/292842/2 "2022-01-06T14:08:37Z")

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> [@jthoni](#):
>
> is running in containers more efficient and each ES node won't need full utilization of all 8 cores, etc.?

Unfortunately I think it is hard to give an accurate answer. It depends on the underlying implementations of the hypervisor and the container runtime. Having a 1:1 mapping seems to be a good start, but I guess that you'll have to do some tests to understand if there are significant performance discrepancies between VMs and containers.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 3, 2022, 2:09pm UTC](https://discuss.elastic.co/t/how-to-size-azure-kubernetes-for-elastic-deployment/292842/3 "2022-02-03T14:09:17Z")

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