The HP-UX 11i v3 release includes support for native multi-pathing, which can coexist with DMP. HP-UX native multi-pathing creates a persistent (agile) device in the
/dev/rdisk directories for each disk that can be accessed by one or more physical paths. To maintain backward compatibility, HP-UX also creates legacy devices in the
DMP recreates disk devices for all paths in the operating system's hardware device tree as DMP nodes in the
/dev/vx/rdmp directories, independently of the devices that are listed in the
/dev/rdsk directories. A DMP node represents a disk that can be accessed by one or more physical paths. DMP nodes are not used by the native multi-pathing feature of HP-UX.