A system includes a memory device, and a processing device, operatively coupled to the memory device, to perform operations including storing, on a volatile memory device, logical-to-physical (L2P) mapping data corresponding to sequentially written data, determining whether an L2P update criterion is satisfied, and in response to determining that the L2P update criterion is satisfied, updating an L2P mapping data structure based on the L2P mapping data. The L2P mapping data structure maintains an initial logical translation unit (LTU) of the sequentially written data, and a length of the sequentially written data from the initial LTU.