US Patent 10474527 Host-assisted error recovery

Systems and methods are disclosed for host assisted error recovery at a data storage device. In an example embodiment, an apparatus comprises a data storage drive including an interface to communicate with a host device, a nonvolatile solid state memory, and a processor. The processor is configured to calculate parity data based on a plurality of pages from the nonvolatile solid state memory, and provide, in response to a request for the parity data received from the host device via the interface, the parity data to the host device with an indication to store the parity data to a nonvolatile storage medium.