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Exam NS0-161 topic 1 question 12 discussion

Actual exam question from Netapp's NS0-161
Question #: 12
Topic #: 1
[All NS0-161 Questions]

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You have an ONTAP 9.7 cluster. You increased the size of the volume to 3 TB, but the IOPS did not increase as expected.
What are the expected IOPS for the volume after the change? (Choose the best answer)

  • A. 2048
  • B. 6144
  • C. 1024
  • D. 4096
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
Reference:
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/What_is_Adaptive_QoS_and_how_does_it_work%3F
by Vindi at Dec. 21, 2020, 10:18 p.m.

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Torus
Highly Voted 3 years, 11 months ago
Correct answer is A - 2048. Expected IOPS value is 2048/TB (used-space). Even if the used-space is less than 1TB, the expected IOPS value is the same for 100GB, 500GB or 1TB. If used-space goes beyond 1TB, the expected IOPS will change to 2048x2=4096.
upvoted 10 times
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fidil
Most Recent 3 years, 9 months ago
Torus is right. The answer is 2048. If you look at the expected iops allocation, you can see used space. And the used space is the same (500GB) Volume increased but the used space is same and expected iops is increasing according to it. The difference when you increase the volume is "peak iops allocation", but not the 'expected' iops. Definitely answer is A (2048)
upvoted 3 times
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Vindi
3 years, 11 months ago
Yes C Expected iops on used space as in question
upvoted 2 times
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skeef7
3 years, 11 months ago
Correct is C Because 2048 IOPs/Tb * 500Gb=1024
upvoted 3 times
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Vindi
3 years, 11 months ago
Is the answer B? 2048x3tb
upvoted 1 times
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