You need to change few configuration variables in the snapdrive.conf file for MPIO to work with Linux.
enable-implicit-host-preparation=on # Enable implicit host preparation for LUN creation default-transport="FCP" # Transport type to use for storage provisioning, when a decision is needed multipathing-type= "nativempio" # Multipathing software to use when more than one multipathing solution is available
Restart the SnapDrive daemon for the snapdrive.conf file changes to take effect. After SnapDrive daemon restart, SnapDrive commands start using the DM-MP stack.