7. Printers and Printing.................................................................................................................. 131

7.1. Types of Printers ............................................................................................................ 131

7.1.1. Printing Considerations................................................................................... 131

7.2. Impact Printers ............................................................................................................... 132

7.2.1. Dot Matrix Printers......................................................................................... 132

7.2.2. Daisy wheel Printers....................................................................................... 133

7.2.3. Line Printers.................................................................................................... 133

7.2.4. Impact Printer Consumables ........................................................................... 133

7.3. Inkjet Printers................................................................................................................. 133

7.3.1. Inkjet Consumables......................................................................................... 134

7.4. Laser Printers ................................................................................................................. 134

7.4.1. Color Laser Printers ........................................................................................ 134

7.4.2. Laser Consumables ......................................................................................... 135

7.5. Other Printer Types ........................................................................................................ 135

7.6. Printer Languages and Technologies ............................................................................. 136

7.7. Networked Versus Local Printers................................................................................... 136

7.8. Red Hat Linux Specific Information ............................................................................. 137

7.9. Additional Resources ..................................................................................................... 138

7.9.1. Installed Documentation ................................................................................. 138

7.9.2. Useful Websites .............................................................................................. 139

7.9.3. Related Books ................................................................................................. 139

8. Planning for Disaster .................................................................................................................. 141

8.1. Types of Disasters .......................................................................................................... 141

8.1.1. Hardware Failures ........................................................................................... 141

8.1.2. Software Failures ............................................................................................ 146

8.1.3. Environmental Failures ................................................................................... 149

8.1.4. Human Errors.................................................................................................. 154

8.2. Backups.......................................................................................................................... 158

8.2.1. Different Data: Different Backup Needs......................................................... 159

8.2.2. Backup Software: Buy Versus Build............................................................... 160

8.2.3. Types of Backups ............................................................................................ 161

8.2.4. Backup Media ................................................................................................. 162

8.2.5. Storage of Backups ......................................................................................... 164

8.2.6. Restoration Issues ........................................................................................... 164

8.3. Disaster Recovery .......................................................................................................... 165

8.3.1. Creating, Testing, and Implementing a Disaster Recovery Plan..................... 166

8.3.2. Backup Sites: Cold, Warm, and Hot ............................................................... 167

8.3.3. Hardware and Software Availability............................................................... 167

8.3.4. Availability of Backups................................................................................... 168

8.3.5. Network Connectivity to the Backup Site....................................................... 168

8.3.6. Backup Site Staffing ....................................................................................... 168

8.3.7. Moving Back Toward Normalcy..................................................................... 168

8.4. Red Hat Linux Specific Information ............................................................................. 169

8.4.1. Software Support ............................................................................................ 169

8.4.2. Backup Technologies ...................................................................................... 169

8.5. Additional Resources ..................................................................................................... 172

8.5.1. Installed Documentation ................................................................................. 172

8.5.2. Useful Websites .............................................................................................. 172

8.5.3. Related Books ................................................................................................. 173

Index................................................................................................................................................. 175

Colophon.......................................................................................................................................... 183