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Forum Discussion

smp_86112's avatar
smp_86112
Icon for Cirrostratus rankCirrostratus
Dec 07, 2011

LTM Sizing for Exchange 2010

I am being asked to provide load-balancing in support of an Exchange 2010 implementation. I was wondering if there are any published guidelines on how to decide which hardware platform to use? Is ther...
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casey_tomlinson's avatar
casey_tomlinson
Icon for Nimbostratus rankNimbostratus
Dec 08, 2011
With over 250,000 Exchange mailboxes and a multitude of F5 products usage patterns have indeed changed with the changing Exchange versions.

 

 

Exchange 2003 is hardly the best comparison to Exchange 2010, but when dealing with 10,000 mailboxes at your largest site a 6900 model is complete overkill even if loading all of the bells and whistles. We maintain over 600k concurrent Exchange connections mostly RPC/HTTPS in a 35 node CAS Array on a 6900, SSL Offloading, irules, etc and the the unit is bored.

 

 

 

I would indeed engage your local F5 rep but IMHO a 1600 pair for your small site and a 3600 pair for your large site will likely give you the performance you need.