96 System SetupRAID Level 1 ConfigurationRAID level 1 uses a data-redundancy storage technique known as mirroring toenhance data integrity. When data is written to the primary drive, the data isalso duplicated, or mirrored, on the second drive in the configuration. ARAID level 1 configuration sacrifices high data-access rates for its dataredundancy advantages.If a drive failure occurs, subsequent read and write operations are directed tothe surviving drive. A replacement drive can then be rebuilt using the datafrom the surviving drive. Also, because data is duplicated on both drives, forexample, two 120-GB RAID level 1 drives collectively have a maximum of 120-GB on which to store data.NOTE: In a RAID level 1 configuration, the size of the configuration is equal to thesize of the smallest drive in the configuration.Troubleshooting RAIDYou can use one of two methods to troubleshoot RAID hard drive volumes.One method uses the Intel RAID Option ROM utility and can be performedwithout an operating system present on the hard drive. The second methoduses the Intel Matrix Storage Manager, or Intel Matrix Storage Console, andis performed after the operating system and the Intel Matrix Storage Consolehard 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
