Wait[/Until]

    Nowait

    Specifies whether or not the system prompt is to be returned
    before the checkpoint operation completes.

    When you specify the Wait qualifier without the Until qualifier,
    the system prompt is not returned to you until all processes have
    flushed updated database pages to disk. The Wait qualifier is the
    default.

    Used with the Wait qualifier, the Until qualifier specifies the
    time at which the RMU Checkpoint/Wait command stops waiting
    for the checkpoint and returns an error message. If you do not
    specify the Until qualifier, the wait is indefinite.

    When you specify the Nowait qualifier, the system prompt
    is returned immediately, before all processes have flushed
    database pages to disk. In addition, when you specify the Nowait
    qualifier, there is no guarantee that all processes will flush
    their database pages to disk.

    The Nowait qualifier is useful when it is more essential that the
    system prompt be returned immediately than it is to be certain
    that all processes have checkpointed.