Dell DCDR01, PP521 RAID Level 1 Configuration

68 About RAID Configurations

Another advantage of a RAID level 0 configuration is that it utilizes the full

storage capacities of the drives. For example, two 120-GB hard drives

combine to provide 240 GB of hard drive space on which to store data.

NOTE: In a RAID level 0 configuration, the size of the configuration is equal to the

size of the smallest drive multiplied by the number of drives in the configuration.

RAID Level 1 Configuration

RAID level 1 uses a data-redundancy storage technique known as mirroring to

enhance data integrity. When data is written to the primary drive, the data is

also duplicated, or mirrored, on the second drive in the configuration. A

RAID level 1 configuration sacrifices high data-access rates for its data

redundancy advantages.

If a drive failure occurs, subsequent read and write operations are directed to

the surviving drive. A replacement drive can then be rebuilt using the data

from the surviving drive.

NOTE: In a RAID level 1 configuration, the size of the configuration is equal to the

size of the smallest drive in the configuration.

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Contents

Main Notes, Notices, and Cautions ____________________ Contents 1 About Y our Computer 2 Setting Up Y our Computer 3 Using Multimedia 4 About RAID Configurations 5 Cleaning Y our Computer 6 Sy stem Setup 7 Clearing Passwords and CMOS Settings 8 T roubleshooting T ools 9 T roubleshooting 10 Reinstalling Software 11 Specifications 12 Getting Help Page Page Finding Information Page NOTE: 14 NOTE: Page 16 NOTE: About Your Computer Front View of the Computer 18 NOTE: Page Front-Panel Connectors 20 NOTE: Back-Panel Connectors NOTE: 22 NOTE: Page Setting Up Your Computer Installing Your Computer in an Enclosure Page Connecting to the Internet Setting Up Your Internet Connection Transferring Information to a New Computer Microsoft Windows XP Page Page Windows Vista Setting Up a Printer Printer Cable Connecting a USB Printer Connecting Two Monitors Connecting Two Monitors With VGA Connectors Connecting One Monitor With a VGA Connector and One Monitor With a DVI Connector Connecting a TV Changing the Display Settings Power Protection Devices Surge Protectors Line Conditioners Uninterruptible Power Supplies Power Management Power Management Options in Windows XP Page Page Page Power Management Options in Windows Vista Using Multimedia Playing CDs or DVDs Page Copying CDs and DVDs How to Copy a CD or DVD Using Blank CDs and DVDs Helpful Tips Adjusting the Picture Connecting Your Computer to a TV or Audio Device Page S-Video and Standard Audio S-Video and S/PDIF Digital Audio Page Composite Video and Standard Audio Page Composite Video and S/PDIF Digital Audio Page Component Video and Standard Audio Page Component Video and S/PDIF Digital Audio Page Page Setting Up the Cyberlink (CL) Headphones Enabling the Display Settings for a TV Using a Media Card Reader (Optional) Page Instructions for Setting Up a Device With Bluetooth Wireless Technology About RAID Configurations RAID Level 0 Configuration RAID Level 1 Configuration Configuring Your Hard Drives for RAID Setting Your Computer to RAID-Enabled Mode Using the Nvidia MediaShield ROM Utility Using Nvidia MediaShield Creating a RAID Array Deleting a RAID Array Converting From One RAID Configuration to Another RAID Configuration Rebuilding a RAID Configuration Cleaning Your Computer Computer, Keyboard, and Monitor Mouse (Non-Optical) Floppy Drive CDs and DVDs System Setup Overview Entering System Setup System Setup Screens Page System Setup Options 80 Page Boot Sequence Option Settings Changing Boot Sequence for the Current Boot Changing Boot Sequence for Future Boots Page Clearing Passwords and CMOS Settings Clearing Passwords Page Clearing CMOS Settings Flashing the BIOS Troubleshooting Tools Power Lights Beep Codes Page 92 System Messages 94 Hardware Troubleshooter Dell Diagnostics When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard Drive Starting the Dell Diagnostics From the Drivers and Utilities Media Dell Diagnostics Main Menu Page Page Troubleshooting Battery Problems 102 Drive Problems Optical drive problems Problems writing to an optical drive Hard drive problems Error Messages 104 IEEE 1394 Device Problems Keyboard Problems 106 Lockups and Software Problems The computer does not start up The computer stops responding A program stops responding A program crashes repeatedly A solid blue screen appears Other software problems Memory Problems Mouse Problems u> press the up- and down-arrow keys Network Problems 110 Power Problems Printer Problems Scanner Problems Sound and Speaker Problems No sound from speakers No sound from headphones Video and Monitor Problems The screen is blank DVI-to-VGA The screen is difficult to read Page Overclocking Problems Power Lights Page Reinstalling Software Drivers What Is a Driver? Identifying Drivers Reinstalling Drivers and Utilities Using the Drivers and Utilities Media Page Page Restoring Your Operating System Using Microsoft Windows System Restore Page Using Dell PC Restore and Dell Factory Image Restore Page Page Using the Operating System Media Page Specifications 130 NOTE: Page 132 NOTE: Page Getting Help Obtaining Assistance Technical Support and Customer Service DellConnect Online Services AutoTech Service Automated Order-Status Service Problems With Your Order Product Information Returning Items for Warranty Repair or Credit Before You Call 140 Contacting Dell Page Appendix FCC Notice (U.S. Only) FCC Class B Macrovision Glossary A B C D Page E F G H I K L M N O P R S Page T U V W X Z Page Index A B C D E F H I K L M N O P R S T U V W