2V0-622D · Question #203
What are three benefits of using a few large-capacity LUNs instead of many small-capacity LUNs? (Choose three.)
The correct answer is A. More flexibility to create virtual machines without adding new LUNs. B. More flexibility for resizing virtual disks. E. Fewer VMFS datastores to manage.. Consolidating storage into fewer, larger LUNs reduces administrative overhead and provides more flexibility for virtual machine and disk management.
Question
What are three benefits of using a few large-capacity LUNs instead of many small-capacity LUNs? (Choose three.)
Options
- AMore flexibility to create virtual machines without adding new LUNs.
- BMore flexibility for resizing virtual disks.
- CLess wasted storage space.
- DBetter performance because there is less contention for a single volume.
- EFewer VMFS datastores to manage.
How the community answered
(35 responses)- A91% (32)
- C3% (1)
- D6% (2)
Why each option
Consolidating storage into fewer, larger LUNs reduces administrative overhead and provides more flexibility for virtual machine and disk management.
A large VMFS datastore has more available free space, allowing administrators to provision additional virtual machines without needing to present and format new LUNs to hosts.
Virtual disk resizing (Storage vMotion or thick-to-thin conversion) requires free space within the same datastore, which is more readily available on a large-capacity LUN.
LUN sizing does not inherently reduce wasted space; storage efficiency depends on thin provisioning and actual VM consumption, not the number of LUNs presented.
Fewer, larger LUNs concentrate more VMs onto a single volume, which can increase I/O contention rather than reduce it, making this claim technically incorrect.
Fewer LUNs directly map to fewer VMFS datastores, reducing the number of objects administrators must monitor, mount, and maintain across the cluster.
Concept tested: VMFS datastore and LUN sizing best practices
Source: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-storage/GUID-7552DAD4-1809-4687-B46C-C3BF5C91E89C.html
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