I'm not sure if I have asked for this already, but I can't remember and google is not my friend either. Librados has two different callback types for an async write: - ack - safe What is the difference between these two types? Is ack faster than safe? Thanks Christian -- 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