Exam MD-100 topic 4 question 51 discussion

Actual exam question from Microsoft's MD-100

Question #: 51
Topic #: 4

HOTSPOT
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You have a computer named Computer1 that runs Windows 11.

You plan to create a storage space on Computer1 that will have the following configurations:

• Name: Data
• Drive letter: F
• File system: NTFS
• Resiliency type: Three-way mirror

What is the minimum number of data disks required, and what is the maximum number of disks that can fail while maintaining data availability? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

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Suggested Answer:

by matelin at April 9, 2023, 4:38 p.m.

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3dk1

2 years, 2 months ago

Also, Pool requires a quorum of 50% plus drives to be present to survive. with 3 way mirror - we have a guarantee of surviving 2 disk failure. Maintaining the above requirements and providing the guarantee - mandates us to have minimum 5 disks in pool. As if we loose 2, we still have 3 in the pool (>50%) for pool to maintain it's quorum.

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matelin

2 years, 3 months ago

Correct. The three-way mirror storage layout can only be created on no less than five physical drives. In such a space there are three copies of each slab stored on different pool member disks. A three-way mirrored space survives a failure of up to two physical drives.

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