US Patent 12086445 Maintaining partition-level parity data for improved volume durability

A data storage system stores a plurality of partitions for a volume and at least one parity partition for the volume. The parity partition includes erasure encoded data that enables any one of the partitions to be reconstructed using the erasure encoded data of the parity partition. Additionally, the data storage system is configured to generate parity data updates in response to modifications to the volume and store updated parity data in the parity partition, such that a current state of any of the partitions of the volume can be re-created in response to a loss of one of the partitions.