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Exam 70-740 topic 1 question 136 discussion

Actual exam question from Microsoft's 70-740

Question #: 136
Topic #: 1

You create a Storage Spaces Direct hyper-converged failover cluster. The cluster contains three nodes and a 1-TB Storage Spaces Direct volume.
The cluster will store virtual machines.
You plan to extend the volume by adding an additional 3 TB.
What is the minimum amount of extra disk capacity required to accommodate extending the volume?

A. 3TB on the coordinator node
B. 3 TB per node
C. 4 TB per node
D. 4 TB on the coordinator node

Show Suggested Answer

Suggested Answer: B 🗳️
https://docs.microsoft.com/en-us/windows-server/storage/storage-spaces/drive-symmetry-considerations

by Millie at May 8, 2019, 4:12 p.m.

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Millie

Highly Voted 6 years, 1 month ago

I think the correct answer is B. https://docs.microsoft.com/en-us/windows-server/storage/storage-spaces/drive-symmetry-considerations

upvoted 5 times

[Removed]

6 years ago

In a cluster with 3 servers, the default disk layout is 3-way mirror. That means a 3TB increase should cost you 9TB footprint increase, or 3TB per node. If you just add 3TB hard drive, you won't get an additional 3TB in your S2D volume.

upvoted 7 times

lbs

5 years, 2 months ago

I agree bcos it is 3way mirror. Answer is B

upvoted 1 times

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[Removed]

6 years ago

https://docs.microsoft.com/en-us/windows-server/storage/storage-spaces/drive-symmetry-considerations

upvoted 1 times

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[Removed]

6 years ago

Millie, I made a mistake. You are correct and the answer is B, and here is why Supported: different sizes across servers The first two servers use 4 TB HDD but the third server uses very similar 6 TB HDD. Server 1 Server 2 Server 3 2 x 800 GB NVMe (cache) 2 x 800 GB NVMe (cache) 2 x 800 GB NVMe (cache) 4 x 4 TB HDD (capacity) 4 x 4 TB HDD (capacity) 4 x 6 TB HDD (capacity) This is supported, although it will result in stranded capacity.

upvoted 2 times

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LandShark187

Most Recent 4 years, 7 months ago

Correct answer is B. https://docs.microsoft.com/en-us/windows-server/storage/storage-spaces/resize-volumes Capacity in the storage pool Before you resize a volume, make sure you have enough capacity in the storage pool to accommodate its new, larger footprint. For example, when resizing a three-way mirror volume from 1 TB to 2 TB, its footprint would grow from 3 TB to 6 TB. For the resize to succeed, you would need at least (6 - 3) = 3 TB of available capacity in the storage pool.

upvoted 1 times

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Jake__

5 years, 1 month ago

Got this q on exam

upvoted 3 times

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minajahan

5 years, 10 months ago

I guess correct answer is B. https://docs.microsoft.com/en-us/windows-server/storage/storage-spaces/drive-symmetry-considerations "Same drive sizes in every serve: Recommended" So, if extend by 3TB, all other nodes can have additional 3TB.

upvoted 2 times

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raghvendra

6 years ago

hi.. friend, can you tell what is the correct answer? as i think B is correct but not sure.

upvoted 1 times

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[Removed]

6 years ago

Millie, I found this in your reference, according this article the answer is A. Sizes: We recommend using drives of the same sizes whenever possible. Using capacity drives of different sizes may result in some unusable capacity, and using cache drives of different sizes may not improve cache performance. See the next section for details.

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