PFS on SMPs and Clusters

Although a PFS file system can be used in a single SMP, PFS is more beneficial to a cluster of SMPs. A high-performance serial file system, such as VxFS, is likely to provide better I/O performance on a single SMP.

Applications written to use MPI I/O for file I/O can easily be moved from single SMPs with high-speed local file systems to cluster environments with PFS file systems.