There is also another cost associated with downtime which is often overlooked ... recovery cost. Recovery costs will depend on type of failure, availability and competence of support, etc. I've been in a few situations where recovery cost was greater than several months of downtime cost. In that case, we chose to leave the server down. thornton - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html