What configuration can help reduce the potential for Virtual SAN (vSAN) issues?

Setting proper fault domains is an effective configuration to help reduce potential issues in Virtual SAN (vSAN) environments. Fault domains are used to define the way storage is distributed across the physical infrastructure. By configuring fault domains, you can ensure that vSAN replicas are distributed across different failure groups, which enhances the resilience and availability of your virtual machines.

When fault domains are properly configured, vSAN can better tolerate hardware failures such as host or disk failures. This setup enables the system to maintain performance and availability even when parts of the infrastructure are affected by issues. It also aids in the distribution of data and ensures that redundancy is maintained, which is critical in a storage solution like vSAN that relies on maintaining multiple replicas for data protection.

In contrast, while increasing network bandwidth, setting planned capacity, and avoiding multiple disk groups may seem beneficial, they do not directly address the fault tolerance aspect of vSAN in the same manner. Properly leveraging fault domains is a strategic way to build a more robust and fault-tolerant storage architecture, thus significantly mitigating the risk of data loss or downtime during hardware failures.