8.1. Introducing RAID
In the world of making backups, the first line of defense against a potential problem is a redundant array of independent (or inexpensive) disks (RAID). At this point in your career, you have probably set up or used machines that have been RAID capable, and it's even more likely that you have set up a RAID yourself. Thus, I'll cover only the basic aspects of RAID and its place within the network infrastructure.
8.1.1. Software RAID
The simplest form of RAID is configured in software. When this type of configuration occurs, the administrator uses multiple available drives and storage devices to combine available space into one (or multiple) logical drives for the purpose of storing large amounts of data over several volumes. ...