Can we run cf7 and cf9 on the same machine. I already have cf7 in my machine. I would like to have cf9 installed . Is it possible?
Yeah more than possible. I’ve got my development machine setup with CF8 and 9 on.
Migration plan depends on your current situation & setup though.
Generally “the recommended approach” is to create a WAR copy of your CF7 instance. Installed a fresh copy of ColdFusion 9 as a multiserver configuration and then deploy the CF7 server onto that as a new instance.
Do some Googling on it as plenty of people have blogged about their migration.