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Exam NCP topic 1 question 168 discussion

Actual exam question from Nutanix's NCP
Question #: 168
Topic #: 1
[All NCP Questions]

A vDisk is read by multiple VMs. The cluster creates immutable copies of the vDisk.
What are these vDisk copies called?

  • A. Disk Clones
  • B. Golden Images
  • C. Volume Groups
  • D. Shadow Clones
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️

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chiar
Highly Voted 3 years, 1 month ago
I think it is D Shadow clones
upvoted 7 times
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Cromo19
Most Recent 4 months, 1 week ago
Selected Answer: D
The Answer is D.refer to http://myvirtualcloud.net/nutanix-shadow-clones-explained-and-benchmarked/ #:~:text=Nutanix%20Shadow%20Clones%20allow%20for,'multi%2Dreader'% 20scenario.&text=Once%20the%20disk%20has%20been,making%20read% 20requests%20to%20it.
upvoted 1 times
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golabi
8 months ago
Selected Answer: D
D is the correct answer! With Shadow Clones, AOS storage monitors vDisk access patterns to determine whether VMs are frequently reading the same data set from multiple nodes in the cluster. If it detects this situation, AOS storage marks the vDisk as immutable.
upvoted 1 times
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Carbonfiber01
1 year, 5 months ago
The Distributed Storage Fabric has a feature called ‘Shadow Clones’, which allows for distributed caching of particular vDisks or VM data which is in a ‘multi-reader’ scenario.
upvoted 1 times
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Carbonfiber01
1 year, 5 months ago
Selected Answer: D
From the Nutanix Bible: With Shadow Clones, DSF will monitor vDisk access trends similar to what it does for data locality. However, in the case there are requests occurring from more than two remote CVMs (as well as the local CVM), and all of the requests are read I/O, the vDisk will be marked as immutable. Once the disk has been marked as immutable, the vDisk can then be cached locally by each CVM making read requests to it (aka Shadow Clones of the base vDisk).
upvoted 1 times
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ejimenezn
1 year, 10 months ago
Selected Answer: D
D, Shadow clones
upvoted 1 times
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oliv_
2 years, 1 month ago
Selected Answer: D
D, Shadow clones
upvoted 1 times
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virttom007
2 years, 4 months ago
After re-reading the question i'll give U credits guys. Golden is used when you manually execute the clone, if its nutanix genius then it's shadow clones.
upvoted 1 times
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virttom007
2 years, 4 months ago
SC are activated for specific reasons on clusters executing VDI in certain circumstancies. I'll give more credit on "golden image" even if it's quite strange to use it. https://next.nutanix.com/virtual-desktop-infrastructure-28/os-gold-image-best-practices-ntfs-allocation-unit-size-486
upvoted 1 times
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r8derfan33
2 years, 5 months ago
It's Shadow Clones - From the Nutanix Bible: With Shadow Clones, DSF will monitor vDisk access trends similar to what it does for data locality. However, in the case there are requests occurring from more than two remote CVMs (as well as the local CVM), and all of the requests are read I/O, the vDisk will be marked as immutable. Once the disk has been marked as immutable, the vDisk can then be cached locally by each CVM making read requests to it (aka Shadow Clones of the base vDisk).
upvoted 1 times
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Mariosoftnet
2 years, 7 months ago
D, Shadow clones
upvoted 1 times
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paperA4
2 years, 9 months ago
D. Shadow Clones. Read the bible.
upvoted 2 times
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Sibeliusto
2 years, 10 months ago
answer is D. refer to http://myvirtualcloud.net/nutanix-shadow-clones-explained-and-benchmarked/ #:~:text=Nutanix%20Shadow%20Clones%20allow%20for,'multi%2Dreader'% 20scenario.&text=Once%20the%20disk%20has%20been,making%20read% 20requests%20to%20it.
upvoted 1 times
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neuxgabux
3 years ago
A is correct. Based on nutanixbible.com "When a snapshot or clone is taken, the base vDisk is marked immutable and another vDisk is created as read/write".
upvoted 1 times
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sasa
3 years, 1 month ago
I think is C Volume Groups
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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