An eight-node vSAN cluster has been deployed. vSAN fault domains are NOT configured. A virtual machine with a 100GB virtual disk (VMDK) is created on the cluster. The 100GB virtual disk is assign a storage policy with the following rules:
Primary level of failures to tolerate = 1
Failure tolerance method = RAID-1 (Mirroring) – Performance
Which statement is true about how vSAN places the component(s) that make up this object?
A. Three mirrored data components are created and distributed across separate hosts. There is NO need for a witness component.
B. Three mirrored data components plus a witness component are created. The data components are distributed across three hosts in the cluster. Witness components are placed on the hosts that contain data components to verify the datacomponents are online.
C. One data component is created to minimize capacity consumption. Two witness components are placed on separate hosts to avoid "split-brain" scenarios.
D. Two mirrored data components plus a witness component are created. The components are distributed across three nodes in the cluster.
Correct Answer: D
Failure tolerance method = RAID-1 (Mirroring)
Bobj is correct,
The key is in the FTT, the question states failures to tolerate=1. So, you will have two copies of the data and a witness component.
B would be the correct answer if the failures to tolerate were equal to 2 in the question