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InterviewSolution
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How Raid 5 Works And How Parity Is Calculated ? |
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Answer» The parity calculation is TYPICALLY performed using a logical OPERATION called "exclusive OR" or "XOR". As you may KNOW, the "OR" logical operator is "true" (1) if either of its operands is true, and false (0) if neither is true. The exclusive OR operator is "true" if and only if one of its operands is true; it differs from "OR" in that if both operands are true, "XOR" is false. The parity calculation is typically performed using a logical operation called "exclusive OR" or "XOR". As you may know, the "OR" logical operator is "true" (1) if either of its operands is true, and false (0) if neither is true. The exclusive OR operator is "true" if and only if one of its operands is true; it differs from "OR" in that if both operands are true, "XOR" is false. |
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