From https://forge.gluster.org/+smb/samba-glusterfs/samba-glusterfs-vfs -- Samba VFS module(s) for GlusterFS.  VFS (Virtual File System) modules allow Samba to use plug-n-play style rules to enable and enforce filesystem-specific semantics.  For more information: + http://www.samba.org/samba/docs/man/Samba-HOWTO-Collection/VFS.html + http://www.samba.org/~sharpe/The-Samba-VFS.pdf