Because one of the inherent properties of clustered systems is shared resources, a cluster requires a file system that addresses the need for files to be shared coherently. In a Sun Cluster file system, a cluster file system enables users or applications to access any file on any node of the cluster by using remote or local standard UNIX APIs.
Sun Cluster systems support the following cluster file systems:
UNIX® File System (UFS) – Uses Sun Cluster Proxy System (PxFS)
Veritas File System (VxFS) – Uses PxFS
Sun Cluster software supports the following as highly available failover local file systems:
If an application is moved from one node to another node, no change is required for the application to access the same files. No changes need to be made to existing applications to fully utilize the cluster file system.