No active/active clustering in Exchange 12
by Volker Weber
I'm in a Exchange clustering session now, the speaker just told the best practices on choosing active/active or active/passive scenarios for Exchange clustering. ... Now Microsft highly discourages active/active scenarious, saying if you have that running switch to a active/passive solution. In Exchange 12 active/active support will even not be available!
Comments
Wish I'd known that some weeks ado ;-)
Doesn't really surprise me. MS never understood what clustering is all about.
That doesn't mean you can't have 5 active servers in a cluster, it
just means you should have a few deactive ones incase of a failure..
Having all active exchange servers and one fails results in an
increase in load to the other exchange servers, where as if you
have deactive ones then if one node fails, and a deactive kicks in,
the load on the existing servers doesn't change ..
Brett, correct me if I'm wrong, but: if there's no active/active failover anymore, you HAVE to have some passive servers up your sleeve whereas before you could run your shop with active servers alone ...