Released: v14.4 of the Exchange 2010 Mailbox Server Role Requirements Calculator

Me in a Big Dilema... Please help.....I am doing a Exchange 2010 Transition for around 26,000 users and targeting to size for 40,000. In the current scenario we have 5 CCR and the storage of around 32 TB out of which only 15 TB is being utilized. When I used the Calculator to create 2 HA copies I was suggested a storage size of around 100 TB - 120 TB . Now the problem is I am having a hard time convincing my Boss  on the Storage required as he is asking me why has the storage grown 4 times. I have tried to convince him on the various types of profile and the calculations but to no luck. He is right in saying that if my current Infrastructure is under utilized why should I go ahead and invest more. I am worried as to what should I opt. Please help.

Great work Ross!!! May I suggest a small Wish.. In few organization there are sometimes more catogories. Currently there are four Tier , Can this be increased to accomodate organizations with atleast 6 Categories.

Yesterday I used sheet version 14.4 to define requirements for a customer (6000 users). The customer plans to deploy a 3-node DAG with 24 Activated databases. The server will have 8 cores with a SPECint2006 Rate Value of 211. Can anybody help me to interpret the results of the Processor Core Ratio Requirements?

Number of Mailbox Cores Required to Support Activated Databases 1
Recommended Minimum Number of Hub Transport Cores 1
Recommended Minimum Number of Client Access Cores 1
Recommended Minimum Number of Global Catalog Cores 1

First of all I would like to thank you for the great effort you are continuously doing; secondly I have a small suggestion on the database configuration if you can add an option that will determine to have one mailbox quota database or multiple mailboxes quota database; Thanks

Warm Regards ...
Hany Samir Donia

I am a beginner in using Exchange 2010 calculator, is the comments that describes each options in cells is enough, or I should review all Technet Exchange 2010 Design documents?

Thanks for your feedback.

Yes, I am deploying a two node stretched DAG (multi-role server) solution - Thanks I pull down the latest version and give it go.

Kushi - This came to my attention yesterday and I just posted a new version which I believe will address the issue (assuming you were deploying a 2-node stretched DAG).

Ross

Just tried this against a previous configuration that worked in ver 12.1.8. I now have an issue with the "Number of HA database copy instances deployed in secondary datacenter" It says I now have too many HA db copies in the secondary datacenter than primary. Is there a bug here.