Data storing method for solid state drive to preserve data integrity after power failure

摘要

A data storing method for a solid state drive is used to preserve data integrity after a power failure. The solid state drive has a flash memory with plural blocks. Each block includes plural pages. One of the plural blocks is set as an old open block. The data storing method includes the following steps. Firstly, the solid state drive is powered on again. Then, the valid data in the old open block are stored into a new open block.

主权项

1. A data storing method for a solid state drive to preserve data integrity after a power failure, the solid state drive having a flash memory with plural blocks, each block comprising plural pages, one of the plural blocks being set as an old open block, the data storing method comprising steps of:
powering on the solid state drive again; adding a power mark to the old open block, and then setting the old open block as a first close block; setting an available block of the flash memory as a new open block; allowing valid data in the first close block to be stored into the new open block; and setting valid data in the first close block as invalid data.