在 Ext2fs 中，为了在一个扇区中擦除单个字节，必须将整个扇区复制到 RAM，然后擦除，然后重写入。

To erase a single byte in a sector in Ext2fs, a whole sector has to be copied to RAM, erased, then rewritten.

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当需要更改少量数据时，Ext2文件系统将整个扇区复制到内存(DRAM)中，在内存中合并新数据，并写回整个扇区。

When a little amount of data needs to be changed, the Ext2 filesystem copies the whole sector to memory (DRAM), merges the new data in memory, and writes back the whole sector.

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它能够快速地扫描扇区，拯救已损坏的文件，并仅可能地将正确的数据复制到硬盘中。

This data recovery software can fast scan disk sectors, rescue the damaged files and copies the correct data to hard disk as possible as it can.

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