This boolean parameter controls whether smbd 8 will allow clients to attempt to store OS/2 style Extended attributes on a share. In order to enable this parameter the underlying filesystem exported by the share must support extended attributes (such as provided on XFS and EXT3 on Linux, with the correct kernel patches). On Linux the filesystem must have been mounted with the mount option user_xattr in order for extended attributes to work, also extended attributes must be compiled into the Linux kernel. no