Raid array

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Question Answer
Raid 0
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Striping
Blocks are split between two or more physical drives. No redundancy
RAID 1
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Mirroring
File blocks are duplicated between two or more physical drives. High redundancy
RAID 5
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Striping with parity
File blocks are striped • Along with a parity block • Requires at least three disks
RAID 10 (1+0)
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RAID 10 (1 + 0)
The speed of striping, the redundancy of mirroring • The best of both worlds • Need at least 4 drives
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