MySQL InnoDB: how to switch to Barracuda format?

In new MySQL versions Barracuda file format was introduced. So I havew a few questions:

  • Is it working only with file_per_table option?
  • How to switch existing system to it (preferably the whole tablespace) other than by reimporting everything from mysqldump backup on empty server?

You are better off doing the mysqldump and reimporting

Take a Look at This File Format Issue
Here is another issue
Here is a more recent article from DatabaseJournal