10. The system of claim 6 , wherein: the at least one of the plurality of data storage systems employs a relational storage format; and the datasets include at least one table arranged according to the relational storage format.
6. A system, comprising: at least one computing device configured to implement one or more services, the one or more services configured to: access dataset association metadata describing associations among datasets to be stored on at least one of a plurality of data storage systems; determine a graph that describes the associations among the datasets; traverse the graph to determine a set of vertices of the graph, the set of vertices included in at least one associative tree; determine an amount of storage space to be used by a set of datasets corresponding to the set of vertices; determine a data storage system characterized by an available storage capacity that is at least the amount of storage space to be used by the set of datasets, the data storage system included in the plurality of data storage systems; and store the set of datasets on the data storage system.