1. A method for storing data in a distributed network comprising a plurality of host computers in communication with a data storage system comprising a plurality of logical volumes including a first subset of the logical volumes, the plurality of host computers including a first subset of host computers including at least a first host computer and a second subset of host computers including the first host computer and a second host computer that is not included in the first subset of host computers such that the first host computer is included in both the first subset of host computers and the second subset of host computers, said method comprising: in response to receiving a single first mapping instruction, mapping, by a processor, each host computer in the one of the first subset of host computers and the second subset of host computers to each logical volume in the first subset of the logical volumes.