/BYTLM=value

    Specifies the buffered I/O byte limit for the BYTLM field of the
    UAF record. The buffered I/O byte limit is the maximum number
    of bytes of nonpaged system dynamic memory that a user's job
    can consume at one time. Nonpaged dynamic memory is used for
    operations such as I/O buffering, mailboxes, and file-access
    windows. The default is 128,000 on Alpha and Integrity server
    systems.