Data processing device and data processing method

摘要

Embodiments of the present invention provide a data processing device and a data processing method. In the data processing device and the data processing method provided by the embodiments of the present invention, first data in a memory is written into a first non-volatile storage unit in a log file form, and a log file of the first data written into the first non-volatile storage unit is written into a second non-volatile storage unit. Because a data write speed of the first non-volatile storage unit is higher than a data write speed of the second non-volatile storage unit, fast backup of the data in the memory can be achieved, and when the data in the memory is lost in an abnormal situation, security of the data in the memory can be ensured.

主权项

1. A data processing device comprising:
a central processor unit; a memory comprising a control unit; a first non-volatile storage unit and a second non-volatile storage unit, wherein a data write speed of the first non-volatile storage unit is higher than a data write speed of the second non-volatile storage unit; and the central processor unit runs an operating system, the operating system comprises a block device subsystem for reading service data from the memory, or writing the service data into the memory; the control unit is configured to (a) when receiving a write request from the block device subsystem, write data corresponding to the write request into the memory and the first non-volatile storage unit and return a write finish response to the block device subsystem after the memory finishes the writing and the first non-volatile storage unit finishes the writing, wherein the data corresponding to the write request is written into the first non-volatile storage unit in a log file form; and (b) initiating data persistency process, the data persistency process comprises: writing the data corresponding to the write request into the second non-volatile storage unit.