Nice update … The important thing for me is … Instead of a 1:4 ratio, you can have a 1:8 ratio between Global Catalog processor cores and Exchange server cores. This assumes that you fulfill one critical requirement: You must have enough RAM installed on the 64-bit server to cache the entire Active Directory database in memory.
Check it out for the full list! http://msexchangeteam.com:80/archive/2007/03/28/437313.aspx
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