Which shared storage option is commonly used to allow multiple cluster nodes to access the same LUN?

Which shared storage option is commonly used to allow multiple cluster nodes to access the same LUN?

• A. Fiber Channel
• B. iSCSI
• C. SAS
• D. Cluster Shared Volume

Answer: (D)

In a Windows failover cluster, you need storage that all nodes can access through the same path. Cluster Shared Volumes provide a single, shared volume that every cluster node can mount simultaneously, giving all nodes access to the same LUN under one namespace. This shared access is what enables clustered roles to run with consistent storage and supports features like live migration. The underlying storage can be presented to the cluster using common transport methods such as Fibre Channel, iSCSI, or SAS, but CSV is the mechanism that exposes the shared volume to all nodes, making it the standard choice for multi-node access to the same LUN.

In a Windows failover cluster, you need storage that all nodes can access through the same path. Cluster Shared Volumes provide a single, shared volume that every cluster node can mount simultaneously, giving all nodes access to the same LUN under one namespace. This shared access is what enables clustered roles to run with consistent storage and supports features like live migration. The underlying storage can be presented to the cluster using common transport methods such as Fibre Channel, iSCSI, or SAS, but CSV is the mechanism that exposes the shared volume to all nodes, making it the standard choice for multi-node access to the same LUN.