US Patent 11449382 Memory systems comprising non-volatile memory devices

A memory system includes a non-volatile memory device and controller circuitry. The non-volatile memory device includes an array of memory cells that includes memory blocks and pages. Each separate memory block includes a separate, respective set of one or more pages. The controller circuitry is configured to control an operation of the non-volatile memory device. The controller circuitry includes processing circuitry configured to perform a recovery operation for the non-volatile memory device in response to a determination that a specific event has occurred at the memory system during a program operation of the non-volatile memory device. The recovery operation includes determining status information associated with a first group including at least one page, determining a quantity of a set of pages included in a second group based on the status information, and programming dummy data for one or more pages of the set of pages included in the second group.