Comptia A+ RAID

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5 Terms

1
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RAID 0 - Striping

-Requires at LEAST 2 drives

-Evenly splits data

-High Performance

-NO Redundancy

2
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RAID 1-Mirroring

-File blocks are duplicated between 2 or more physical drives

-High disk utilization (DOUBLED)

-High redundancy

3
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RAID 5-Striping with Parity

-File blocks are striped (like RAID 0) along with a parity block

-Requires at LEAST 3 disks

-Efficient use of disk space, since files aren’t duplicated

-parity is spread across drives

-High redundancy

-Parity calculation may effect preformance

4
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RAID 10 (1+0) - A stripe of Mirrors

-the speed of striping, the redundancy of mirroring

-Requires at LEAST 4 drives

5
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RAID 6 - Striping with Double Parity

-Requires at LEAST 4 disks

-High Redundancy