BTRFS Question

Hi I am just learning about btrfs on my home system. How do I know what kind of options where used to create a BTRFS filesystem? I installed F21 from scratch and I created a BTRFS filesystem on a HDD. I think I created it with the "single" option. Now I read that that is dangerous, I should have created it as one of the raids if I want to have data redundancy and protection vs bit rot (which is what I was looking forward to). How can I verify it? Also, If I want to change it, can I do it IN-PLACE or do I have to reformat/recreate the filesystem? Thanks for whatever help/illumination you might provide. I am catching up on btrfs, but I am not there yet. JP -- ------------------------------ /\_/\ |O O| pepebuho(a)gmail.com ~~~~ Javier Perez ~~~~ While the night runs ~~~~ toward the day... m m Pepebuho watches from his high perch.