I have existing ZCM 11.4.3 appliance. I'm attempting to upgrade to 2017 appliance. I've been told that instead of detaching data from old appliance and attaching to new appliance, I should copy the vastorage so that my original 11.4.3 appliance won't be changed.

I've copied vastorage, also copied content-repo since it is not located on vastorage.
I've deployed new appliance
Made snapshots of both the 11.4.3 and 2017 appliance
Since I'm not attaching storage, I don't know how/when/where to get my database, content-repo, config settings from old appliance onto the new one.

Can anyone help me understand what to do with my existing data so that the new appliance will be configured and migrated properly?

Any help is greatly appreciated.