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LPIC-1/CompTIA Linux+ Certification All-in-One Exam Guide (Exams LPIC-1/LX0-101 & LX0-102) by Robb Tracy

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Backing Up Data

One of the key roles that you must perform as a Linux system administrator is to ensure that the data on the systems you are responsible for is protected. One of the best ways that you can do this is to back up the data. Having a backup creates a redundant copy of the data so that if a disaster occurs, the data can be restored.

It’s important that you remember that data is stored, for the most part, on mechanical devices in your Linux system. Hard drives have motors and other moving parts that slowly wear out over time. In fact, hard drives usually have a mean time between failures (MTBF) value assigned to them by the manufacturer. This MTBF basically gives you an estimate of how long a drive will last before it fails. Basically, ...

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