MC_SERVICES_P2

   (Alpha only) MC_SERVICES_P2 specifies whether to load the
   PMDRIVER (PMA0) MEMORY CHANNEL cluster port driver.

   PMDRIVER is a driver that serves as the MEMORY CHANNEL cluster
   port driver. It works together with MCDRIVER (the MEMORY CHANNEL
   device driver and driver interface) to provide MEMORY CHANNEL
   clustering. If PMDRIVER is not loaded, cluster connections are
   not made over the MEMORY CHANNEL interconnect.

   The default value is 1, which causes PMDRIVER to be loaded when
   you boot the system. When you run CLUSTER_CONFIG.COM and select
   the MEMORY CHANNEL option, PMDRIVER is loaded automatically when
   you reboot the system.

   VSI recommends that this value not be changed. This parameter
   value must be the same on all nodes connected by MEMORY CHANNEL.