On Mon, Oct 17, 2011 at 10:20 AM, sheng qiu <herbert1984106@xxxxxxxxx> wrote: > if my local file system does not support extended attributes, can i > use it? Unfortunately not. Ceph requires xattr support; it uses xattrs for internal bookkeeping as well as for its own xattr support. Most filesystems do support xattrs these days, though; you probably just need to specify it as a mount option. :) -Greg -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html