What statement is true regarding virtual disk availability in a vSAN environment with a default storage policy?

In a vSAN environment with a default storage policy, each virtual disk is configured to have two replicas of data. This replication is essential for ensuring high availability and fault tolerance, as it allows for continued access to the data even if one of the replicas becomes unavailable due to a hardware failure or maintenance tasks.

By default, vSAN storage policies are designed to create a fault-tolerant mechanism that allows for the replication of data across different hosts within the cluster. The two-replica configuration helps in maintaining the necessary balance between performance and resilience, optimizing the use of available resources while protecting against host failures.

This means that when data is written to the virtual disk, it is simultaneously written to two different locations, ensuring that if one replica encounters issues, the data can still be retrieved from the other. This default setting reflects vSAN's design to enhance data availability while minimizing the complexity of managing storage policies for users.