If an operating system bug, bad disk sector, or even certain superuser errors cause corruption to a file system, using multiple volumes can limit that damage to just one volume.

如果操作系统缺陷、磁盘坏扇区或某些超级用户失误会破坏文件系统，使用多个卷可以把破坏的范围限制在一个卷。

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Apple has admitted that its latest operating system harbours a bug that can accidentally delete data belonging to the computer's owner.

苹果公司承认其最新的操作系统存在一个漏洞，可能意外地删除电脑用户的数据。

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In a bug tracking system, however, there is always a record of every bug and the state it is in.

然而，在缺陷追踪系统中，始终有对每一个缺陷及其当前状态的记录。

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But last month, Twitter said a "cascading bug" disrupted the system and made Twitter intermittently unavailable to users for stretches of a day.

WSJ: Twitter Blames Data-Center Failures for Outage

But if it had listened to one helpful user who reported a bug in its registration system months ago, it might have avoided the whole fiasco.

FORBES: Bug That Helped Enable Skype Account Takeovers Reported By A User Months Earlier

Longtime Mac users will be reminded that system freezes used to be a common bug in the Mac OS that requires a reboot.

FORBES: Magazine Article