CompTIA Security+ 501 (RAID levels)
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What is RAID-1?
Mirroring of data on two or more disks -Provides Redundancy (exact copy of drive)
What is RAID-0?
Striping across 2 or more drives, -main purpose is performance -no recovery features
What is RAID-5?
Striping with 1-block of parity spanning 3 or more drives -Provides increased performance -Redundancy supporting recovery if 1 drive fails
What is RAID-6?
Striping with 2 blocks of parity spanning 3 or more drives -Provides increased performance -Increased Redundancy than RAID-5 support recovery if 2 drives fail