On Dec 3, 2014, at 10:38 AM, Jeff Boyce <jboyce at meridianenv.com> wrote: > My objective is to RAID1 the two drives, use LVM on top of the RAID btrfs will meet both your functional objectives (mirroring, management, and expandability) and should be simpler to set up within the CentOS 7 installer. It also gets you a more durable filesystem due to features like checksummed metadata and scrubbing. This is the first release where that is a supported option, which is why your search results aren’t pulling up more recommendations for it. If you’re one of those still nervous about btrfs, it’s been in the stable kernels since the 2.6 days, added in early 2009.