Migrating to DMP from HP native multi-pathing
On HP-UX, devices cannot be taken out of native multi-pathing control.
Plan for system downtime for the following procedure.
The migration steps involve system downtime on a host due to the following:
Need to stop applications
Need to stop the VCS services if using VCS
The procedure involves one or more host reboots
To migrate all of the existing volumes from native multi-pathing devices to DMP devices and enable DMP support
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Stop all the applications that use native multi-pathing devices.
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Unmount all the file systems.
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Turn on the DMP support for the LVM volume groups.
# vxdmpadm settune dmp_native_support=on
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Mount the file systems.
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Restart the applications.
