Abstract: Methods and systems are described for redundant storage of a data block from a data source into a distributed file system over a software-defined network. According to one embodiment, the methods and system describe a cloud manager in the network that identifies a first and second storage server in a network, along with the clusters that the servers are in, and the in-cluster network elements (NEs) of those clusters. The cloud manager calculates best paths through the NEs of the network to reach the identified storage servers, reserves bandwidth along the best paths so that the data block can be sent, configures the forwarding tables of the NEs in these best paths to forward the data block to the storage servers, and sends the data block through the best paths.