\documentclass{beamer} 

\usepackage{beamerthemesplit} 

\title{ATOL: Virtualization}
\author{Marek Gr\'ac\\ \texttt{xgrac@fi.muni.cz}}
\institute{Red Hat Czech s.r.o. / Faculty of Informatics, Masaryk University}
\date[]{Advanced Topics of Linux Administration} 

\begin{document}
\frame{\titlepage} 

\subsection*{Outline}

\subsection{Introduction}

\frame {
\frametitle{Introduction to virtualization}
\begin{itemize}
	\item Advantages
	\begin{itemize}
		\item Security
		\item Better utilization of computers (power, CPU, rack space)
		\item Higher availability of services
		\item Low-cost solution
	\end{itemize}
	\item Disadvantages
	\begin{itemize}
		\item Performance issues
		\item Virtualization on Linux is new technology
		\item Very difficult to solve issues
	\end{itemize}
\end{itemize}
}

\frame {
\frametitle{Full-virtualization}
\begin{itemize}
	\item No modification are needed in guest OS
	\item Total abstraction of underlying physical system
	\item HW support: Intel VT (CPU flag vmx), AMD SVM (svm)
	\item PAE ???
	\item Pentium II-IV, Celeron, Xeon
	\item Duron, Athlon
\end{itemize}
}

\frame {
\frametitle{Paravirtualization}
\begin{itemize}
	\item Requires user modification of guest OS (eg. linux-image-xen)
	\item Provides near native performance (<5\% ??)
\end{itemize}
}

\frame {
\frametitle{Virtualized Resources}
\begin{itemize}
	\item Virtual CPUs (vcpu)
	\item Virtual disks (/dev/xvda)
	\item Virtual network interfaces (VNIC), identification by MAC addresses
	\item Identification of guests using
	\begin{itemize}
		\item domain name (domain-name) - user given 
		\item identity (domain-id) - unique, non-persistent
		\item UUID - persistent, assigned at first installation
	\end{itemize}
\end{itemize}
}


\subsection{Lab}

\frame {
\frametitle{Lab: Installation}
\begin{itemize}
	\item Goals: 
	\begin{itemize}
		\item Create a virtual machine on your computer using kickstart
		\item Setup network connection through your 'real' machine
		\item Using a LVM snapshots create a new virtual machine from existing one
	\end{itemize}
\end{itemize}
}

\frame {
\frametitle{Lab: Prepare a paper}
\begin{itemize}
	\item Themes:
	\begin{itemize}
		\item Compare VMWare, Xen, KVM, \ldots
	\end{itemize}
	\item Format:
	\begin{itemize}
		\item Short presentation (15--20 minutes; 5-7 slides)
		\item Paper containing comparision (500 words)
	\end{itemize}
\end{itemize}
}

\end{document}
