Library /sys$common/syshlp/sysgen.hlb SHARE, /INITIALIZE, Qualifiers, /POOLBCOUNT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /POOLBCOUNT=block-cnt

    Specifies the number of blocks allocated to the multiport memory
    unit's dynamic pool. The block-cnt value is an integer with a
    default of 128.