2V0-15.25 · Question #34
An administrator is responsible for managing a VMware Cloud Foundation (VCF) Fleet that is configured as follows: - Single VCF instance with a single workload domain. - The Workload Domain has a…
The correct answer is C. Convert the Virtual Machines from thick provisioning to thin provisioning. In VMware Cloud Foundation 9.0 with vSAN ESA, storage policies must match the capabilities of the existing cluster. The scenario describes a 5-node vSAN ESA cluster where the vSAN Default Storage Policy is RAID-1 (FTT=1). The administrator attempts to apply a 2 Failures ?RAID-6…
Question
An administrator is responsible for managing a VMware Cloud Foundation (VCF) Fleet that is configured as follows:
- Single VCF instance with a single workload domain.
- The Workload Domain has a single 5-node VMware vSAN Express Storage
Architecture (ESA) cluster.
- The vSAN Default Storage Policy is configured as RAID1.
The administrator is alerted to the fact that storage capacity is running low and, to improve space efficiency, attempts to change the vSAN storage policy on a number of large virtual machines to a 2 Failures - RAID-6 policy. The policy change is immediately rejected. What should the administrator do to reduce overall capacity usage while waiting for new storage devices to arrive?
Options
- AEnable encryption on the vSAN Default Storage Policy.
- BReconfigure the Virtual Machines to use a 1 Failure-RAID-5 Storage Policy.
- CConvert the Virtual Machines from thick provisioning to thin provisioning.
- DEnable compression on the vSAN Default Storage Policy.
How the community answered
(45 responses)- A2% (1)
- B18% (8)
- C73% (33)
- D7% (3)
Explanation
In VMware Cloud Foundation 9.0 with vSAN ESA, storage policies must match the capabilities of the existing cluster. The scenario describes a 5-node vSAN ESA cluster where the vSAN Default Storage Policy is RAID-1 (FTT=1). The administrator attempts to apply a 2 Failures ?RAID-6 policy, which ESA supports only on clusters with at least 7 nodes. Because the cluster has only five nodes, the policy fails immediately--this is expected and documented in the vSAN ESA design specifications. Since RAID-6 is not an option and capacity is low, the administrator must look for a method to reclaim storage usage without requiring additional nodes or unsupported policy changes. Converting VMs from thick provisioning to thin provisioning is a safe and effective mitigation approach. Thin provisioning reduces consumed space by allowing disks to grow only as needed, immediately recovering unused blocks. This is a standard vSAN-supported method to temporarily alleviate capacity pressure.
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