SQL server 2008 r2 is going end of life in July so I'm tasked with upgrading our server to SQL server 2012. I've never done this before and would like your input/feedback on the process.
It is a physical server running Windows Server 2012 R2 (x64), current version of SQL is 2008 r2 standard SP3 x64. The application can only upgrade to SQL server 2012 so I'm picking SQL server 2012 standard SP4 x64 to upgrade to. There are 5 separate instances running and there is a maintenance plan in place for db backup and log backups.
As far as the process goes, I'm under the impression I can run the 2012 installer, choose upgrade, and answer a few questions to upgrade. Also, the application vendor mentioned I need to choose mixed mode, on certain services choose database engine, client tools connectivity, mgmt tools basic, and mgmt tools complete.
You...