A method of controlling a nonvolatile memory device includes: receiving a plurality of logical pages associated with a plurality of physical addresses, respectively; storing the plurality of logical pages at the plurality of physical addresses in a selected one of a plurality of sub-clusters according to a given order of logical addresses of the logical pages; generating a first table including an entry for each one of the ordered logical addresses identifying a cluster of the selected sub-cluster and an offset into the selected sub-cluster; and generating a second table including an entry for the selected sub-cluster and the cluster indicating one of the ordered logical addresses associated with a first physical page of the selected sub-cluster.