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D-UN-OE-23 · Question #44

What is a benefit of using vVols?

The correct answer is B. Individual VMs on a datastore can be snapped. vVols (Virtual Volumes) decouple VM storage from the traditional datastore/LUN model by giving each VM its own set of objects directly on the storage array. This per-VM granularity is what makes option B correct - snapshots, replication, and other array-based operations can be…

Unity Concepts and Architecture

Question

What is a benefit of using vVols?

Options

  • AEnables the assignment of isolated file storage partitions.
  • BIndividual VMs on a datastore can be snapped.
  • CEnables the automatic import of capability profiles from vSphere to Unisphere.
  • DAll VMs on a datastore are snapped simultaneously.

How the community answered

(67 responses)
  • A
    3% (2)
  • B
    91% (61)
  • C
    1% (1)
  • D
    4% (3)

Explanation

vVols (Virtual Volumes) decouple VM storage from the traditional datastore/LUN model by giving each VM its own set of objects directly on the storage array. This per-VM granularity is what makes option B correct - snapshots, replication, and other array-based operations can be performed on individual VMs rather than the entire datastore, which is impossible with traditional VMFS/NAS datastores.

Why the distractors are wrong:

  • A is wrong because isolated file storage partitions describe NFS shares or similar file-based constructs - not a vVols benefit.
  • C is wrong because capability profiles flow from the storage array (like Unisphere) into vSphere as storage policies - not the other way around.
  • D is wrong because snapping all VMs simultaneously is actually a limitation of traditional LUN-based snapshots - vVols exist to solve that problem with per-VM granularity.

Memory tip: Think of vVols as giving each VM its own "private storage apartment" on the array - the landlord (array) can evict, photograph (snap), or modify any single apartment without touching the neighbors.

Topics

#vVols#virtual volumes#VMware#VM snapshots

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