Storage class memory, data processing method, and processor system

A processor system, comprising:

• a storage class memory, comprising a plurality of memory chips, wherein the plurality of memory chips include at least one group, wherein each group of the at least one group comprises a first-type memory chip configured to store data and retry error correction code, wherein the retry error correction code is for performing second-level memory error correction on the data stored in the first-type memory chip in case of failure of the first-level memory error correction;
• a processor;
• and
• a controller separately connected to the processor and the storage class memory, wherein the controller is configured to:
• perform first-level memory error correction on data stored in a respective first-type memory chip;
• and
• obtain the data stored in the respective first-type memory chip and perform second-level memory error correction on the data stored in the respective first-type memory chip in case of failure of the first-level memory error correction performed on the data stored in the respective first-type memory chip.