Dell XPS 420 owner manual RAID Level 1 Configuration, Segment Hard drive

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serial ATA RAID configured for RAID level 0

segment 1

segment 3

segment 5

hard drive 1

segment 2

segment 4

segment 6

hard drive 2

Another advantage of a RAID level 0 configuration is that it utilizes the full storage capacities of the drives. For example, two 120-GB 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

A RAID level 1 configuration 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. RAID level 1 sacrifices high data-access rates for its data redundancy advantages.

Setting Up and Using Your Computer

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