You can use DMP instead of third-party drivers for advanced storage management. This section describes how to set up DMP to manage native LVM devices and any logical volume that operates on those devices.
After you install DMP, set up DMP for use with LVM. To set up DMP for use with LVM, turn on the dmp_native_support tunable. When this tunable is turned on, DMP enables support for LVM on any device that does not have a VxVM label and is not in control of any third party multi-pathing (TPD) software. In addition, turning on the dmp_native_support tunable migrates any LVM volume groups that are not in use onto DMP devices.
The dmp_native_support tunable enables DMP support for LVM, as follows:
To turn on the dmp_native_support tunable, use the following command:
# vxdmpadm settune dmp_native_support=on
The first time this operation is performed, the command reports if a volume group is in use, and does not migrate that volume group. To migrate the volume group onto DMP, stop the volume group. Then execute the vxdmpadm settune command again to migrate the volume group onto DMP.
To verify the value of the dmp_native_support tunable, use the following command:
# vxdmpadm gettune dmp_native_support Tunable Current Value Default Value -------------------------- ------------- --------------- dmp_native_support on off