Exchange 2019, Sype for Business 2019 hardware questions

Question

Exchange 2019, Sype for Business 2019 hardware questions

Susan Dodds 116

For Exchange 2019, it recommends 128GB RAM?

I will have roughly 200 mailboxes on a Hyper-V VM. How much RAM will I actually need?

I am currently running Exchange 2016 that is using about 15GB RAM.

For Skype 2019, what non-subscription alternatives are there for voicemail as Exchange 2019 will not have unified messaging?

For Skype 2019, how high is CPU usage as far as needing 8 cores? My current processor has 4 cores. This too will be in a Hyper-V VM running with a Skype Edge VM.

How much RAM does Skype 2019 actually use? There probably won't be too many user on at one time.

Thanks

Answer 1

JimmyYang-MSFT 35,816 Microsoft Vendor

Hi @Susan Dodds ,

For Exchange 2019, it recommends 128GB RAM?

Yes. The evidence can be found here:

https://learn.microsoft.com/en-us/exchange/plan-and-deploy/system-requirements?view=exchserver-2019#hardware-requirements-for-exchange-2019

In fact, Exchange Server storage sizing includes the Exchange Server storage sizing includes estimating the storage space to accommodate databases, content indexes, transaction logs, growth factors, and unexpected overhead growth, so we have no accurate way to calculate it. As a workaround, you can try to use the following link’s calculator to calculate it:

https://gallery.technet.microsoft.com/office/Exchange-2013-Server-Role-f8a61780

For more details about Calculator guidance:

https://exchangeloadbalancer.com/exchange-role-calculator/start/

For Skype 2019, what non-subscription alternatives are there for voicemail as Exchange 2019 will not have unified messaging?

Cloud Voicemail is Microsoft’s response to yanking Unified Messaging out of Exchange. For more details about how to configure cloud voicemail service for on-premise users, you can learn it from:

https://learn.microsoft.com/en-us/skypeforbusiness/hybrid/configure-cloud-voicemail

For Skype 2019, how high is CPU usage as far as needing 8 cores?

You can try to download the Skype for Business Server 2015, Stress and Performance Tool. When you have entered all the necessary information, the capacity calculator estimates your requirements. The yellow cells show calculated values for CPU, memory, and bandwidth requirements based on tests performed in Skype for Business Server performance labs.

https://learn.microsoft.com/en-us/skypeforbusiness/management-tools/capacity-planning-calculator

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JimmyYang-MSFT 35,816 Reputation points Microsoft Vendor

2020-12-18T10:04:59.593+00:00

Hi @Susan Dodds ,

Do you have any further question on this topic now?
If the above suggestion helps, please be free to mark it as answer for helping more people.
Susan Dodds 116 Reputation points

2020-12-18T15:26:58.443+00:00

How well would exchange 2019 run with fewer than 200 mailboxes with 32gb ram as a hyper-v vm on a raid 10 with other Vm's?
JimmyYang-MSFT 35,816 Reputation points Microsoft Vendor

2020-12-23T07:17:11.763+00:00

Hi @Susan Dodds ,

I made a discussion with our Exchange Engineers. It also recommends you use the official recommended configurations. We can not promise the mail processing speeding and it may be slow when EAC manage if you use 32gb ram as a hyper-vm. And it is not conducive to subsequent expansion.
Susan Dodds 116 Reputation points

2020-12-23T07:22:52.077+00:00

Are there any complications having it as a hyper-vm?
JimmyYang-MSFT 35,816 Reputation points Microsoft Vendor

2020-12-23T07:50:20.413+00:00

Hi @Susan Dodds ,

If there are too many tasks opened, it may get stuck.
Susan Dodds 116 Reputation points

2020-12-23T07:51:50.747+00:00

Could you please elaborate?
JimmyYang-MSFT 35,816 Reputation points Microsoft Vendor

2020-12-29T09:44:18.387+00:00

Hi @Susan Dodds ,

Exchange product team wants to get across to customers is that modern software consumes a lot of memory. Users want high performance, they consume more data than ever before, and servers offer more functionality. All of these aspects must be paid for in CPU, I/O, and memory. For more discussion, you can refer to:

https://social.technet.microsoft.com/Forums/en-US/bb874c0b-3ee2-47a2-85c4-78c0f9182684/exchange-server-2019-ram-suggestion?forum=Exch2019
Susan Dodds 116 Reputation points

2020-12-30T19:13:35.397+00:00

Thanks for the reply.

Unfortunately, I don't have an Exchange 2019 iso with the calculator as that would require purchasing software that I cannot guarantee I can provide the hardware for it to actually run at a low enough cost as the recommended RAM is 16 times the amount of the previous version...

Can someone with the calculator please run the calculator with possibly 200 mailboxes, possibly on a raid 6 or 10, as a hyper-v vm?
JimmyYang-MSFT 35,816 Reputation points Microsoft Vendor

2020-12-31T08:16:29.807+00:00

Hi @Susan Dodds

Thanks for your reply!

In this thread, we are mainly discussing about Skype for Business hardware questions as indicated by the first post. As we are mainly focused on the issue of Skype for Business and do not familiar with Exchange configuration, it would be best if you try to open up a new thread for it and add the tag "office-exchange-server-deployment". In this way, it will make answer searching in the forum easier and be beneficial to other community members as well.

Thanks for your understanding and patience!

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Exchange 2019, Sype for Business 2019 hardware questions

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