Step back from the current turmoil, however, and a more encouraging picture emerges.
然而，如果把目前的混乱搁置一旁，以旁观者的角度看，就会出现一幅更加振奋人心的画面。
If the current checkpoint was invalid, the file system need only step back to the last good checkpoint for a valid file system.
如果当前检查点失效，文件系统只需回滚到上一个有效的检查点，重新获得有效的文件系统。
If the current checkpoint was invalid, the file system need only step back to the last good checkpoint for a valid file system.
如果当前检查点失效，文件系统只需回滚到上一个有效的检查点，重新获得有效的文件系统。
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