An organization requires a data storage solution using multiple disks. The solution must ensure continuous data availability even if two disks fail concurrently. Which configuration should be utilized to fulfill this requirement?
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Striped mirrors with single-level parity
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Mirrored set across two or more disks without parity
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Dual parity configuration (capable of handling two simultaneous disk failures)
The appropriate configuration for this scenario is RAID 6, which uses dual parity, allowing the array to operate even if two disks fail at the same time. RAID 5 uses single parity and can only survive the loss of one disk, which does not meet the criteria of the scenario. RAID 0 has no redundancy and therefore provides no fault tolerance. RAID 10 can sustain multiple drive losses but only if they are not part of the same mirrored set, thus there's a risk if two specific disks fail.
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What is RAID 6 and how does it work?
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What is the difference between RAID 5 and RAID 6?
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What are the other RAID levels and their purposes?