This talk is a light overview of virtualization technologies with a more in-depth look at Xen, given by and targeted towards the hands-on system administrator. Topics will include:

• Virtualization and consolidation: Buzz aside, what are my choices for consolidation, and what are the trade offs between the different virtualization technologies, and consolidating without virtualization?
• Virtualization and server management: What tools does virtualization enable that can make the sysadmin's job easier?
• What about virtualization can make the sysadmin's job harder? How many of these benefits can I get without shared storage? If I do have shared storage, what added benefits can virtualization give me?
• Overview of the Xen hypervisor and device architecture: What does the sysadmin need to know, and how to get good I/O performance out of a virtualized system?
• Protecting and fairly allocating resources: How to give people what they are paying for? We will go over the sysadmin-level details of fairly allocating RAM, CPU time, network bandwidth, and disk bandwidth, in environments where users are not always cooperative, and where some virtual servers should be allocated more resources than others.

Luke S. Crawford has been working with Xen in a production environment since late '05, renting virtual private servers to people from all over the Internet at Prgmr.com.

He has also spent significant time with larger corporations, helping to virtualize the corporate environment. Luke and Chris Takemura are nearing completion of The Book of Xen, to be published by No Starch Press in September 2009.

Eddy will be looking at the current state of packaging across distros (Ubuntu, Gentoo, rPath), lessons learned, and what's next.

"opythonista, djangonaut, ubuntero, catholic choir-boy."

Eddy currently works as a lab engineer at Cisco Systems, was educated at Universitas Bina Nusantara in Jakarta, Indonesia, and California State University East Bay, and is a resident of Hayward.

Have you ever wanted to learn beat-mixing or electronic music composition? Want to get started with software that's completely free and community-based? Jordan will cover the basics of DJing and introduce you to the free / open-source MIXXX digital DJ software. Then, we'll move on to tracker-based music composition using LittleGPTracker, which Jordan will demonstrate both on laptop and the Game Park handheld. LittleGPTracker is free and designed especially for 8-bit (GameBoy-style) music.

"STARPAUSE" (a.k.a. Jordan Gray) is a chiptune producer and founder of the Mp3Death netaudio label, which publishes music under the Creative Commons Attribution Noncommercial ShareAlike 2.0 license.