Backup Media
Selecting your backup media is as critical as selecting the program to perform the backup. Your backup media should be removable so that the information can be taken to another site for safe storage in case of fire, flood, or other natural disaster. In some cases, the backup media is simply another system on the network that’s located in an alternate building. Most backup systems, however, use tape media. Magnetic tape still provides the lowest cost per megabyte for storing data and still provides the most thorough backup. Table 20.1 lists some typical tape devices used for storing backed-up data.
| Media Type | Capacity |
|---|---|
| 1/2-inch reel tape | 140MB (6250BPI) |
| 1/4-inch cartridge tape (QIC) | 8GB |
| 8mm cartridge ... |
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