The Veritas Volume Manager, VVM or VxVM is a proprietary logical volume manager from Veritas (now part of Symantec). It is available for Windows, AIX, Solaris, Linux, and HP-UX. A modified version is bundled with HP-UX as its built-in volume manager. It offers volume management and Multipath I/O functionalities (when used with Veritas Dynamic Multi-Pathing feature).