1. A method of selecting and migrating relevant data from among data associated with a workload of a virtual machine and stored in source storage cache memory in a dynamic computing environment, the method comprising: selecting one or more policies, the one or more policies including a size policy defining a default maximum size for the relevant data; selecting the relevant data from among the data based on the one or more policies in a default mode; and migrating the relevant data from the source storage cache memory to target storage cache memory.