SOLID STATE DISK, DATA MANAGEMENT METHOD AND SYSTEM THEREFOR

摘要

The present invention is applied to the technical field of solid-state storage, and provided are a solid state disk and a data management method and system. The data management method for a solid state disk comprises: saving the written data in a solid state disk after adding a timestamp to written data; receiving a mark command for marking the data to be invalid, marking an address range corresponding to the invalid data, and saving the marked information in the solid state disk after adding a timestamp to the marked information; comparing the timestamp of the marked information with the timestamp of the data in the marked address range after starting the solid state disk; if the timestamp of the data in the marked address range is earlier than the timestamp of the marked information, marking the address range as invalid, otherwise not marking the address range as invalid.

主权项

1. A data management method for a solid state disk, comprising:
saving written data in a solid state disk after adding a timestamp to the written data; receiving a mark command for marking data to be invalid, marking an address range corresponding to the invalid data, and saving marked information in the solid state disk after adding a timestamp to the marked information; and comparing the timestamp of the marked information with the timestamp of the data in the marked address range after starting the solid state disk, if the timestamp of the data in the marked address range is earlier than the timestamp of the marked information, marking the address range as invalid, otherwise not marking the address range as invalid.