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Backing Up Data

Although RAID arrays are pretty cool (network administrators love to sit around and talk about their RAID arrays), the most foolproof of all the fault-tolerance schemes is to simply make a backup copy of important data. Performing regular backups is essential to truly protecting valuable information on the network (and often is considered a foolproof method for keeping your job as network administrator).

When you spec out your network server (some considerations for network server hardware is discussed in Chapter 3), it makes good sense to consider some type of tape backup unit for your server. You can use an internal tape backup drive or an external drive. Backup devices can range from portable units with one drive bay, to backup "towers" that include several tape drive bays and can back up terabytes of data. You even have choices for SCSI tape drives, IDE tape drives, and tape drives that attach to your computer's parallel port.


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