Storage of data using retired memory rows

A method of operating a memory system comprising a controller communicably coupled to a memory device, the method comprising:

• determining that a post package repair (PPR) operation, associated with a memory row of the memory device, has been requested by a host device;
• determine a location of a defective bit in the memory row;
• and
• maintain, in a non-volatile memory of the memory system, retired row data comprising an address of the memory row and the location of the defective bit.

A memory controller comprising:

• a host interface coupled to a host device;
• a memory array interface coupled to a memory array;
• and
• circuitry configured to:
• determine that a post package repair (PPR) operation, associated with a memory row of the memory array, has been requested by a host device communicably coupled to the host interface;
• determine a location of a defective bit in the memory row;
• and
• maintain, in non-transitory memory of the memory controller, retired row data comprising an address of the memory row and the location of the defective bit.