/sys$common/syshlp/helplib.hlb RUN, Process, Qualifiers, /FILE_LIMIT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /FILE_LIMIT=quota

    Specifies the maximum number of files that a process can have
    open at any one time.

    The default quota is the quota established at system generation
    time. The minimum amount required for any process to execute is
    2.

    The file limit quota is pooled.