Forum Discussion
Azure Sizing for Exchange Server 2019 Setup with different Availability Zones
Dear Experts, Could you please help confirm how to calculate the Azure sizing for setting up 2 Exchange Server 2019 instances on Windows Server 2022, with each server in a different availability ...
I did this for a customer last year and used the Exchange calculator for the initial sizing followed by some tweaking.
In the end we decided to host the 2 Exchange server on a vmware platform on-premises, the cost of hosting the servers in Azure was way too high.
In the end we decided to host the 2 Exchange server on a vmware platform on-premises, the cost of hosting the servers in Azure was way too high.
All our user mailboxes are migrated to M365 and are hosted on-premises in Azure. We primarily use legacy protocols for legacy apps, shared mailboxes, and an archive manager. Will this sizing still be applicable? -
Additionally, version 10.7 is the latest version available at this link - https://www.microsoft.com/en-us/download/details.aspx?id=102123. One of the forums mentioned that the sizing calculator can only be downloaded from the Volume Licensing Service Center. which is true, may the post is old?
- You should be good. Maybe you can scale down a bit and when needed increase your VMs to see how things are going.
The sizing calculator should be available on the Exchange 2019 ISO, but also available from the Microsoft download center: https://www.microsoft.com/en-us/download/details.aspx?id=102123- Let's see how it works for my requirements, and I'll come back here with my findings. I'm still questioning myself, the Exchange 2019 system requirements published by Microsoft here - https://learn.microsoft.com/en-us/exchange/plan-and-deploy/system-requirements?view=exchserver-2019. They recommend a minimum of 128 GB for mailbox servers and 64 GB for Edge Transport. Is there any chance the sizing calculator could show RAM utilization below 128 GB, or does it default to 128 GB and increase based on higher usage? Do you have any previous experience with this?