Now stop me if I'm wrong but isn't the advice from Capita when upgrading, say from SQL 2008 to SQL 2012, is to install an instance of SQL 2012 (side by side) on the same box and then migrate using dbattach? Why not just upgrade the 2008 instance to 2012?
I've done this on a snapped version of our SIMS box and it seem to work fine? Is there some reason why we shouldn't do it?
Let me know
VMWare consultant to the stars