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Exchange 2010 Mailbox Storage Config

Posted on 2011-09-26
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Last Modified: 2012-05-12
I'm migrating an existing Exchange 2007 Mailbox server to a new 2010 server with a new SAN attached to it.  I would like four mailbox databases.  I have about 2TB of storage available and would like the mailbox database sizes to be 150GB each.  What's the best way to allocate and partition out the database files and the log files?  How many drives?  I've tried to use the Mailbox calculator spreadsheet that MS has out, but it's not really fitting into my plans.  

Any thoughts would be appreciated.

Thank you
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Question by:e90mdrei
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Expert Comment

by:ianmellor
ID: 36708212
Hi,

You would need at least 8 LUN's. One for each DB and their associated transaction log partition. You would also want your transaction log LUN to be 20% of your DB LUN.

Hope this helps.
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Author Comment

by:e90mdrei
ID: 36709462
So if the four mailbox database size was 200GB, then the associated log lun size would be 40GB?

F: 200GB
G: 200GB
H: 200GB
I: 200GB
J: 40GB
K: 40GB
L: 40GB
N: 40GB
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Accepted Solution

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ianmellor earned 500 total points
ID: 36709486
Yep, that is correct. You should always split your DB from Logs for performance and redundancy.

Cheers,
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