RAID Levels (0, 1, 5, 6, 10)

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1

Min. Drives: 2 Features: Mirroring Advantages: Performance + reliability Disadvantages: Capacity is half of the total size

0

Min. Drives: 2 Features: Striping Advantages: Performance + capacity Disadvantages: All data is lost if a drive fails

5

Min. Drives: 3 Features: Striping w/ Parity Advantages: Performance + capability + reliability Disadvantages: Takes time to rebuild if a drive fails

10 (0+1)

Min. Drives: 4 Features: Mirroring and Striping Advantages: Performance + capacity + high reliability Disadvantages: Capacity is half of total size

6

Min. Drives: 4 Features: Striping w/ Double Parity Advantages: RAID 5 + loss capability of 2 drives Disadvantages: Takes time to rebuild if 1+ drive fails


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