Storage resource distribution method and device

The invention relates to the technical field of storage, in particular to a storage resource distribution method and device. The storage resource distribution method and device are used for solving the problems that the failure probability is high when the storage resource distribution is conducted, and the storage resource utilization rate is low. The method includes the steps of ranking all virtual machines (VM) which execute functions of a virtual network element in sequence from big to small according to the sizes of required storage resources when the storage resource application needs to be conducted for the virtual network element, and sequentially conducting storage resource application for each VM according to the ranking sequence of all the VMs. By means of the method and the device, the distribution granularity of the storage resources is reduced, and the probability that the rest of the storage resources in a logic unit meet the application conditions is increased. In addition, the storage resource application is sequentially conducted on all the VMs according to the sizes of the storage resources, the problem of the fragmentization of the storage resources can be solved, and the storage resource distribution success probability and the storage resource utilization rate are further increased.