Veritas Concurrent I/O improves the performance of regular files on a VxFS file system without the need for extending namespaces and presenting the files as devices. This simplifies administrative tasks and allows databases, which do not have a sequential read/write requirement, to access files concurrently.

Veritas Concurrent I/O allows for concurrency between a single writer and multiple readers or between multiple writers. It minimizes serialization for extending writes and sends I/O requests directly to file systems.