Nor does it protect you from situations where data has been lost due to a hardware or disk drive failure, data corruption, or other potential physical disasters.

它不能阻止由于硬件或磁盘驱动器故障、数据损坏或其它潜在物理灾难引起的数据丢失。

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A head crash in a fixed hard disk generally destroys the data, whereas the failure of a tape drive or optical disk drive often leaves the data cartridge unharmed.

对于固定的硬盘，磁头撞击通常会破坏数据，然而磁带或光盘驱动器的错误通常对数据盘碟是无害的。

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As hard drive capacities have surged, the risk of failure has gotten more severe, since one disk can conceivably contain every photo, e-mail, video and document you've created over the course of a decade.

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