Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

Migrating between DMP and HP-UX native multi-pathing
Note: Migrating from one multipath driver to the other overwrites the existing
Powerfail Timeout (PFTO) settings for the migrating device. It will take the default
PFTO setting for the multipath driver that it is migrated to.
You can use the vxddladm addforeign and vxddladm rmforeign commands to
migrate a system between DMP and HP-UX native multi-pathing. These procedures
migrate devices in the /dev/disk and /dev/rdisk directories
Note: Before migrating between DMP and HP-UX native multi-pathing, ensure
that no applications are accessing VxVM volumes. Migration is not supported
without first stopping any applications that are using the volumes.
If the migration involves a currently booted disk, you must reboot the system.
Specifying the –r option with the vxddladm addforeign command and the
vxddladm rmforeign command, automatically reboots the system.
See the Storage Foundation Release Notes for limitations regarding rootability
support for native multi-pathing.
Administering Dynamic Multi-Pathing
How DMP works
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