\section{Data Distinctions}

\begin{frame}
   {Data Distinctions}

   \begin{itemize}
      \item Shareable vs non-shareable
      \item Variable vs static
   \end{itemize}

\end{frame}

\cprotect\note{

   When talking about how files and data are organized in the
   one big directory tree, it is important to learn some
   taxonomy on what kind of information has to be read and
   written. In particular, there are two kinds of distinctions:

   \begin{enumerate}

      \item \textbf{Shareable vs. non-shareable}

      Shareable data is that which can be shared between
      different hosts. Non-shareable is that which must be
      specific to a particular host. For example, user home
      directories may be shareable while device lock files are
      not.

      \item \textbf{Variable vs. static}

      Static data include binaries, libraries, documentation,
      and anything that does not change without system
      administrator assistance.  Variable data is anything that
      may change even without a system administrator's help.

   \end{enumerate}

   Often these logical distinctions are embodied as different
   kinds of information residing in various directories, or
   even partitions and filesystems.

}



