| 摘要 |
PURPOSE: Handling of abnormal shutdown for a system with an NVM(Non-Volatile Memory) is provided to utilize information obtained from index pages, thereby efficiently reconstructing logical-to-physical mapping after an abnormal shutdown event. CONSTITUTION: Generation of an abnormal shutdown event is detected(404). Index pages of an NVM are scanned corresponding to age(406). Ages of the index pages are compared with ages of data pages of the NVM corresponding to the index pages(408). Reliability of the index pages is determined based on a comparison result(410). The index pages map logical addresses in physical addresses of the data pages. [Reference numerals] (402) Start; (404) Detecting that an abnormal shutdown has occurred; (406) Scanning multiple index pages according to an NVM for ages of the multiple index pages; (408) Comparing the ages of the index pages with ages of data pages of the NVM corresponding to the multiple index pages; (410) Determining the reliability of each index page of the multiple index pages based at least in part on the comparison; (412) End |
