D-VXR-OE-23 practice question 1 of 10

When the VxRail cluster is deployed, what vSAN storage policy settings are applied to the VxRail Manager VIVP

Full set: 47 questions
Answer options
A: Failures to Tolerate: 1 failure - RAID 1 (Mirroring) Object space reservation: Thin provisioning Correct answer
B: Failures to Tolerate: 1 failure - RAID 5 (Erasure Coding) Object space reservation. Thin provisioning
C: Failures to Tolerate: 1 failure - RAID 5 (Erasure Coding) Object space reservation Thick provisioning
D: Failures to Tolerate: 1 failure - RAID 1 (Mirroring) Object space reservation. Thick provisioning
Correct Answer:
A. Failures to Tolerate: 1 failure - RAID 1 (Mirroring) Object space reservation: Thin provisioning
Explanation

During the initial deployment of a VxRail cluster, the VxRail Manager virtual machine is a critical management component. To ensure its high availability and performance, it is protected by the default vSAN storage policy. This policy is configured with Failures to Tolerate (FTT) = 1 and RAID-1 (Mirroring). This means a complete copy of the VM's data is maintained on a separate host, allowing it to remain operational if a single host or disk fails. The Object space reservation is set to Thin provisioning by default in vSAN to optimize storage capacity by allocating space only as it is consumed.

Why Incorrect

B. RAID-5 (Erasure Coding) is not the default for the VxRail Manager VM, as RAID-1 provides better write performance and faster rebuild times, which are preferable for critical management components.
C. This is incorrect because the default policy for the VxRail Manager VM uses RAID-1 (Mirroring) for performance and Thin provisioning for space efficiency, not RAID-5 or Thick provisioning.
D. Thick provisioning is not the default setting. The vSAN default is Thin provisioning to conserve storage space until it is actively written to by the virtual machine.

References

1. Dell VxRail HCI System Tech Book (Version 7.0.130): Page 101, Section "vSAN Default Storage Policy". It states, "The vSAN Default Storage Policy is configured with Failures to Tolerate (FTT) set to 1 and a Failure tolerance method of RAID-1 (Mirroring)... By default, all objects deployed on a vSAN datastore are thin-provisioned."

2. Dell VxRail Architecture Overview White Paper: Page 21, Section "VxRail Manager". It specifies, "The VxRail Manager VM is automatically deployed during the initial build process... It is protected by the default vSAN storage policy, which is configured for FTT=1 using RAID-1 mirroring."

3. Dell VxRail System 8.0.x Administration Guide: Page 10, Section "VxRail managed virtual machines". The guide implicitly confirms the default protection policies for management VMs, which align with the standard vSAN default of FTT=1, RAID-1 for clusters of 3 or more nodes.

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