Can you name some of the states of RAID array?
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online
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Degraded
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Rebuilding
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All the above
D
Correct answer
Explanation
A RAID array can exist in several operational states. 'Online' means the array is healthy and fully functional. 'Degraded' indicates a drive has failed but data is still accessible via parity or mirroring. 'Rebuilding' occurs when a replaced drive is being reconstructed. Thus, all of these are valid RAID states.