A data storage device includes a memory device and a controller coupled to the memory device. The controller is configured, during execution of a relocation operation that includes storage of data to a memory buffer of an access device and retrieval of the data including data bits and first error correction code (ECC) parity bits from the memory buffer, to generate second ECC parity bits based on the data bits from the memory buffer and to compare the first ECC parity bits to the second ECC parity bits.