You will find that the filesystem barrier operations don't work on LVM except in the very latest kernels. If you want integrity and performance you may not wish

You will find that the filesystem barrier operations don't work on LVM except in the very latest kernels. If you want integrity and performance you may not wish to use LVM. Background: The general case is hard. The LVM folk were holding out for the general case but eventually yielded to practicality and coded the easy case (single physical device). Extra work for them, but smiles for users.