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

       /QUOTA=number-of-bytes

    Specifies the size limit of the logical name table. The size
    of each logical name entered in the new table is deducted from
    this size limit. The new table's quota is statically subtracted
    from the parent table's quota holder. The parent table's quota
    holder is the first logical name table encountered when working
    upward in the table hierarchy that has an explicit quota and is
    therefore its own quota holder. If the /QUOTA qualifier is not
    specified or the size limit is 0, the parent table's quota holder
    becomes the new table's quota holder and space is dynamically
    withdrawn from it whenever a logical name is entered in this new
    table. If the table has no quota holder and you specify /QUOTA=0,
    the table has unlimited quota.