I am setting up new servers for my v15 environment. I have done the server prep for v15. Do I need to use TIM and install v12.51, then copy my database over, then upgrade to v15? Or can I copy the database over and use v15 TIM to upgrade the database and v15 TIM to install all the other servers.
Does that make sense?
Dean
Yup! I just did a similar thing for our v14 upgrade:
All of the application services on the new farm should be installed as version 15. You can even get the whole thing running on the updated version and test your migration and update before you cut over.
When you are ready to do the actual upgrade for production, your maintenance window should look something like this:
When I did my upgrade from 12.5.1 to 14.1.7, I had a 22-step migration checklist, had done a number of test runs in advance, and had a bunch of database stuff scripted out. Got back online 50 minutes after the maintenance window began! Our db is still tiny enough to back up to about 1.4GB compressed, but let me know if you beat my time ;-)
Thanks, yeah copying the DB will probably be the biggest chunk of time.