/sys$common/syshlp/helplib.hlb Sys Parameters, MC_SERVICES_P8  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    (Alpha only) MC_SERVICES_P8 is reserved for Compaq use only and
    must remain at the default value of 0. The value must be the same
    on all nodes connected by MEMORY CHANNEL.