Abstract: An offset range striping technique increases concurrency of operation execution directed to metadata managed by a volume layer of a storage input/output (I/O) stack, while reducing contention among resources of one or more nodes of a cluster. A logical unit (LUN) may be apportioned into multiple volumes, each of which may be partitioned into multiple regions, wherein each region is represented by a dense tree. The technique increases concurrency of operation execution (e.g., modifications to the metadata at the offset ranges), while reducing contention among the resources (e.g., CPUs and NVLogs) by distributing the offset range operations among the regions and mapping the regions to services and NVLogs. Such increased concurrency and reduction of contention may be achieved by implementation of the technique to (i) apportion each region into disjoint chunks (i.e.