Best practice on mailbox database size & we need how many server for deployment exchange server 2013

Dear all,

We have  an server that runs Microsoft exchange server 2007 with the following specification:

    • 4 servers: Hub&CAS1 & Hub&CAS2 & Mailbox1 & Mailbox2 
    • Operating System : Microsoft Windows Server 2003 R2 Enterprise x64
    • 6 mailbox databases
    • 1500 Mailboxes

    We need to upgrade our exchange server from 2007 to 2013 to fulfill the following requirment:

    I want to upgrade the exchange server 2007 to exchange server 2013 and implement the following details:

    • 1500 mailboxes
  • 10GB or 15GB mailbox quota for each user

How many servers and databases  are required for this migration<ins cite="mailto:Mohammad%20Ashouri" datetime="2014-05-18T22:41"></ins>?

Number of the servers:

Number of the databases:

Size of each database:

Many thanks.

May 18th, 2014 2:32pm

I would reference the mailbox calculator:

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

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May 18th, 2014 2:37pm

And, some background theory can be found here:

http://blogs.technet.com/b/exchange/archive/2013/05/06/ask-the-perf-guy-sizing-exchange-2013-deployments.aspx

May 18th, 2014 7:00pm

You will also need to check server role requirement in exchange 2013. Please go through this link to calculate the server role requirement : http://blogs.technet.com/b/exchange/archive/2013/05/14/released-exchange-2013-server-role-requirements-calculator.aspx

2TB is recommended maximum database size for Exchange 2013 databases.

Here is the complete checklist to upgrade from exchange 2007 to 2013 : http://technet.microsoft.com/en-us/library/ff805032%28v=exchg.150%29.aspx

Meanwhile, to reduce the risks and time consumed during the completion of migration process, you can have a look at this proficient application(http://www.exchangemigrationtool.com/) that would also be a good approach for 1500 users. It will help you to ensure the data security during the migration between exchange 2007 and 2013.

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May 19th, 2014 3:29am

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