1. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises: monitoring slice access requests to generate access records; correlating two or more slice access requests based on the access records to produce a correlation value; when the correlation value is greater than a correlation threshold level, identifying two or more encoded data slices for co-location; and when the two or more encoded data slices for co-location are not stored utilizing a common storage configuration, selecting one or more of the two or more encoded data slices for migration to the common storage configuration.