12.2. Backups

A common mistake made by administrators is to assume that installing RAID controllers on a server is the same as backing up data. It is not. The purpose of RAID is to provide failover in the event of a hard drive failure. Backing up data involves making a copy of existing information on a separate device. Backups are especially important in a server environment, as the purpose of a server is to store information.

Data backups are an inherent part of good network security. If a server, or another network device, is compromised, restoring proper data quickly is just as important as responding to an attack.

There are three different types of backups:

  1. Full

  2. Partial

  3. Image

Full and partial backup combinations are the most popular. Initially ...

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