A very old and long story where Veritas through an acquisition, acquired a filesystem for *nix type systems. They were also the first with a clustered file system.
That said, Veritas was doing clustered file systems, snapshots, and replication, well before the SAN vendors were. There is still a play for Storage Foundation, CFS, VxFS, VVR, and such for certain environments, but there are other options that can augment and/or replace some of those components.
Talk to any enterprise unix/solarix/AIX shop and most of them are running Storage Foundation with CFS or VxFS of some type, along with VxVM too.
