Patent ID: 11971782
Assignee: SK HYNIX NAND PRODUCT SOLUTIONS CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. An electronic storage system, comprising:
persistent storage media; and
a controller communicatively coupled to the persistent storage media, the controller including controller memory and logic configured to control access to the persistent storage media and, in response to one or more commands, the logic is further configured to:
determine an intermediate parity value based on a first parity calculation,
store, in the controller memory, the intermediate parity value, and
determine a final parity value based on the intermediate parity value and a second parity calculation,
wherein to determine the intermediate parity value comprises sending a uni-directional command to:
read an old data value from a first address indicated in the uni-directional command;
perform an exclusive-or operation on the old data value and a new data value indicated in the uni-directional command to determine the intermediate parity value; and
store in the persistent storage media the intermediate parity value at a first location associated to a first index indicated in the uni-directional command.