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Answer (Detailed Solution Below)

Option 1 : Effectively unrecoverable from the array, because RAID 0 stripes data with no parity or mirroring

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Detailed Solution

सही उत्तर Effectively unrecoverable from the array, because RAID 0 stripes data with no parity or mirroring है।

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PrepSnapprepsnap.in • Part -A

Question:

A company's primary file server runs on a two-disk RAID 0 array when one disk suffers a head crash. What is the recovery outlook? / कंपनी का मुख्य फाइल सर्वर दो-डिस्क RAID 0 ऐरे पर चलता है और एक डिस्क में हेड क्रैश हो गया। रिकवरी की संभावना क्या है?

1.
Effectively unrecoverable from the array, because RAID 0 stripes data with no parity or mirroring
2.
Fully recoverable from the surviving disk, because each disk holds a complete copy
3.
Recoverable by recomputing the missing stripes from parity
4.
Recoverable after replacing the disk, because RAID 0 rebuilds automatically

Correct Answer: Effectively unrecoverable from the array, because RAID 0 stripes data with no parity or mirroring

RAID 0 splits every file across both disks with zero redundancy, so losing one disk destroys roughly half of every stripe with nothing to rebuild from. / RAID 0 हर फाइल को दोनों डिस्क पर बिना redundancy बाँटता है; एक डिस्क जाने पर पुनर्निर्माण का कोई आधार नहीं। Option (c) is the trap — RAID 0 has no parity at all.

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