Machines, systems and methods for enhancing data recovery in a data storage system. The method includes determining whether one or more data storage mediums in a data storage system are unavailable; determining data that are at a risk of loss, due to the one or more data storage mediums being unavailable; from among the data that is determined to be at the risk of loss, identifying data that is highly vulnerable to loss; and creating one or more temporary replicas of the data that is highly vulnerable to loss.