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Faxanadu said:
 

a more explicit warning would have been good.

also, you use your production server for testing and development? Where are your test and development environments? I want my six sigma availability, as agreed in our SLA!

so you actually need at least 3 servers, with the test server acting as a back-up server...


 There is a server for production, and you mention need for second for development/back-up...  how does that add up to 3?