i am playing with 3.3beta2 on centos 6.2 machines with ext4 for the bricks. should that work? i have enabled user_xattr on the mounts and i can manually set attributes, but i have never found anything set by gluster. is there code that explicitly checks for xfs? should i see attributes get set on the root of the bricks? on any kind of regular files? my setup is a simple two node mirror, and i've tried rebooting one while writing files, and there doesn't seem to be a good way to know when the nodes are resynchronized. even after running a heal find, it seems like things aren't really in sync. i then reboot the other node and have found situations where i have inconsistent data between nodes. is there an officially blessed way to perform reboots for maintenance, updates, etc?