vSphere 7.0 Virtual Disk Availability

C.

The correct answer is D. Each virtual disk will have two replicas of data.

In this environment, there are two vSAN clusters, which means that virtual disks can be created and stored on vSAN datastores provided by each cluster. The vSAN default storage policy is the default policy that is applied to all virtual disks unless a custom storage policy is created and assigned to the virtual disk.

The vSAN default storage policy has a rule for the number of replicas to be created for each object (virtual disk) that is stored on vSAN. The default number of replicas for a virtual disk is 2, which means that each block of data on the virtual disk is replicated twice on different hosts in the cluster.

When a virtual disk is created, it is divided into blocks, and each block is assigned a location on a disk group (a collection of physical disks) in the cluster. The blocks are distributed across multiple disk groups in the cluster to ensure that the data is protected against host or disk failures. However, it is possible for two replicas of a block to be placed on the same host if that is the only available location for the block.

Option A is incorrect because while replicas will be placed on different disk groups, they can also be placed on the same host if necessary.

Option B is incorrect because all stripes (data blocks) do not need to be placed on different disk groups. They can be placed on the same disk group, as long as they are replicated on different hosts.

Option C is incorrect because the number of replicas for each virtual disk is 2 by default, not 4.