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

    SWPFAIL sets the number of consecutive swap failures allowed
    before the swap schedule algorithm is changed to ignore the swap
    quantum protection.

    This special parameter is used by Compaq and is subject to
    change. Do not change this parameter unless Compaq recommends
    that you do so.