Scaling up CRM 2011 deployment

Posted on 2013-12-17
Last Modified: 2014-01-20
I'm new to MS CRM world and currently assigned a project to install for a big hosting company with base customers of 3000 users.
Since this is business critical, I need it to be with loadbalancing and high-availability.
After some reading, I've came to this configuration:
1 Deployment Group:
SQL Cluster

My question: Once the number of users will increase, will I be able to install another deployment group and add it to the existing configuration without downtime to running services?

Thanks in advance.
Question by:webox_suuport
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Expert Comment

by:Mohammed Hamada
ID: 39723668
I think the scaling plan in Microsoft products are all the same, it doesn't really differ much! I have deployed and configured CRM with ADFS before but it was for a small business size company and for CRM everything was collocated.

For Lync servers for instance, all you have to do to include more users or scale up is just add another server in the pool(s).

and the same applies for Exchange.

Before you start your deployment, try to read the Microsoft implementation document and use the planing tool to check how many servers do you need.

here's a white paper about 150K users for test purpose. it will give you better clue.

Author Comment

ID: 39723811
Thanks for the comment.

I'm familiar with both Lync and Exchange and they are relatively easy to scale.
My problem is that with CRM 2011 there is the deployment group which confuses me.
For example, I've checked one doc from Microsoft about topology for Entry-Tier, Mid-Tier and Upper-Tier (, and when checking the upper-tier, they are writing about 2 deployment groups and if needed, more groups can be added, while it is not written about the middle-tier.

So basically the entire concept of deployment groups is confusing me here.
LVL 24

Expert Comment

by:Mohammed Hamada
ID: 39723860
These figures provide agood detail about the tiers, I think in your case you might consider the upper-tier.
If the number of customers and users will increase from 3000 and up then you should consider the upper-tier.
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Author Comment

ID: 39723902

Yes, I did considered that, although upper-tier requires 20 servers for one deployment group.
But I think that I will go for it, better be safe than sorry.
LVL 24

Expert Comment

by:Mohammed Hamada
ID: 39723916
Indeed, that's a good choice you'll make.

best of luck

Author Comment

ID: 39723936
Great, so one question is left :)
Probably I will find answers on the net, but EE is also "net" :-)

Does sandbox and async server roles have any HA or LB?
LVL 24

Accepted Solution

Mohammed Hamada earned 500 total points
ID: 39724260
I think you will need it with big deployments! HA would be a good for the sandbox test environment and for the Async as it won't cause any failure for the syncronization .

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