VMS Help V73 Features, Programming Features, New Process Dump Tools (Alpha), Debugger SDA Command  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The new debugger SDA command invokes the System Dump Analyzer
    (SDA) to allow you to look at a process dump from within the
    OpenVMS debugger. For example:

     DBG> SDA

     OpenVMS (TM) Alpha process dump analyzer

     SDA> ..
     .
     .
     SDA> EXIT
     DBG>

    This allows you to use SDA to analyze a process dump without
    terminating a debugger session.

    For more information, refer to the OpenVMS Debugger Manual.