When configuring shared cluster storage, NFS is a high availability option.

When configuring shared cluster storage, NFS is a high availability option.

• A. True
• B. False
• C. Not supported
• D. Depends on version

Answer: (B)

Shared cluster storage relies on block-level access that all cluster nodes can see as a single disk or LUN. NFS is a network file system that exposes files and folders over the network, not a raw block device. Because the cluster resources depend on consistent, low-level access to shared storage, NFS-backed shares cannot serve as the backing storage for a failover cluster’s disks. In practice, high availability storage is provided by block storage presented via iSCSI or Fibre Channel (and similar SAN technologies). NFS can be used for general file sharing, but it isn’t a suitable option for the shared storage that a Windows failover cluster requires.

Shared cluster storage relies on block-level access that all cluster nodes can see as a single disk or LUN. NFS is a network file system that exposes files and folders over the network, not a raw block device. Because the cluster resources depend on consistent, low-level access to shared storage, NFS-backed shares cannot serve as the backing storage for a failover cluster’s disks. In practice, high availability storage is provided by block storage presented via iSCSI or Fibre Channel (and similar SAN technologies). NFS can be used for general file sharing, but it isn’t a suitable option for the shared storage that a Windows failover cluster requires.