26 Setting Up and Using Your ComputerIf a drive failure occurs, subsequent read and write operations are directed to the surviving drive. Areplacement drive can then be rebuilt using the data from the surviving drive. Also, because data isduplicated on both drives, two 120-GB RAID level 1 drives collectively have a maximum of 120-GBon which to store data.Configuring Your Computer for RAIDYou may want to configure your computer for RAID at some point, if you did not select a RAIDconfiguration when you purchased your computer. You must have at least two hard drivesinstalled in your computer to set up a RAID configuration. For instructions on how to install ahard drive, see "Hard Drive" on page 79.You can use one of two methods to configure RAID hard drive volumes. One method uses theIntel RAID Option ROM utility and is performed before you install the operating system ontothe hard drive. The second method uses the Intel Matrix Storage Manager, or Intel MatrixStorage Console, and this method is performed after you have installed the operating systemand the Intel Matrix Storage Console. Both methods require that you set your computer toRAID-enabled mode before starting any of the RAID configuration procedures in thisdocument.Setting Your Computer to RAID-Enabled Mode1 Enter system setup (see page 103).2 Press the up- and down-arrow keys to highlight Drives, and press .3 Press the up- and down-arrow keys to highlight SATA Operation, and press .hard drive 1segment 1segment 2segment 3hard drive 2segment 4segment 5segment 6segment 1 duplicatedsegment 2 duplicatedsegment 3 duplicatedsegment 4 duplicatedsegment 5 duplicatedsegment 6 duplicatedserial ATA RAIDconfigured forRAID level 1
