摘要 |
It is determined that a reading count reaches one among sets of reading count threshold values. An initial test page corresponding to the reached reading count threshold value is selected from the sets of the initial test pages. There is at least one page sacrificed by the page sacrificing the page in the sets of the initial test pages. Test reading is performed on the selected test page, and a result of test reading of the selected test page is evaluated by a reading disturb noise. |