We are looking at Clustering our Exchnge 2003 Sp2 Environment . We have 1 Front End and 3 Back End Servers.
To cluster we would move all the databases to the SAN that part is easy enought. Does the Exchagne 2003 SP2 Cluster Model only allow for a one for one cluster where I would need to purchase 3 more Exchange Servers one to cluster for Mail1 and one for Mail2 and one for Msil3 ? Or is it more flexible than that were I can have Say 6 total exchange Servers where any one of them can support the users in a Cluster ?