Dell T3400 manual Hard drive

serial ATA RAID configured for RAID level 1

segment 1

segment 2

segment 3

segment 4

segment 5

segment 6

segment 1 duplicated

segment 2 duplicated

segment 3 duplicated

segment 4 duplicated

segment 5 duplicated

segment 6 duplicated

hard drive 1 hard drive 2

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.

RAID Level 5

RAID level 5 uses a data-staging storage technique known as data parity. When data is written to the primary drive, the data is duplicated on at least three other drives. Unlike a RAID level 1 configuration which writes to one other volume that acts as a data mirror, a RAID level 5 configuration writes data to each drive in increments, placing data from each segment across multiple drives. A RAID level 5 configuration has higher data-access rates, but requires more storage space than a RAID level 0 or RAID level 1 configuration.

About RAID Configurations

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