Dynamic Storage Tiering allows root users to move files among different volumes, allocate files to different volumes at file creation time based on policy, and independently recover volumes, without altering the namespace of the file system. Version 7 was introduced in VxFS 5.0. Version 8 enables support for file-level snapshots and shared extents. Version 8 was introduced in VxFS 5.1. Version 9 enables support for file compression, deduplication, and partition directories. Version 9 was introduced in VxFS 6.0. Version 10 enables support for maxlink, which permits a directory to contain more than 64K subdirectories. Version 10 was introduced in VxFS 6.1. Parallel access mode VxFS file system can run in single instance mode or in a parallel access / cluster mode. The parallel mode allows for multiple servers (also known as cluster nodes) to simultaneously access the same file system. When run in this mode, VxFS is referred to as Veritas Cluster File System. The Cluster File System provides cache coherency and POSIX compliance across nodes, so that data changes are atomically seen by all cluster nodes simultaneously. Because Cluster File System shares the same binaries and same on-disk layout as single instance VxFS, moving between cluster and single instance mode is straightforward. See also Comparison of file systems Symantec Operations Readiness Tools (SORT) References External links Veritas Services and Operations Readiness Tools (SORT) documentation search VERITAS Storage Foundation VxFS Quick Reference VERITAS Cluster File System Symantec Operations Readiness Tools (SORT) 1991 software Disk file systems Shared disk file systems HP software File systems supported by the Linux kernel