Sizing Exchange for Very Large Implementation
Posted on 2009-04-23
We are being asked to upgrade an exchange 2003 system to Exchange 2007. The current system has 250,000 users in 4 Active/Passive Cluster servers. This seems to work ok, since most of the users accounts are not very active. (about 30,000 are very active).
We want to see if the plan for upgrade is comparable to other plans for systems of this size. Can you guys give me advice about how many servers, virtual or non-virtual, memory, etc, for this engagement?
We think we have a good solution, but want to see what others say.