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Kris Buytaert, profile picture
Uploaded byKris Buytaert
ODP, PPTX3,475 views

open source virtualization

The document provides an overview of open source virtualization technologies by Kris Buytaert. It discusses the history and evolution of virtualization starting from mainframes in the 1960s to modern virtualization with Xen, KVM, VirtualBox and other open source projects. It also compares different virtualization approaches like full, para and hardware virtualization. Lastly, it discusses popular virtualization platforms and management tools as well as the future of virtualization.

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Open Source Virtualization An overview Kris Buytaert [email_address]
Kris Buytaert Senior Linux and Open Source Consultant @inuits.be
„ Infrastructure Architect“
Linux since 0.98
OpenMosix, openQRM, ...
Early Adopter (Xen, MySQL Cluster)
Automating Large Scale Deployment , High Availability
Surviving the 10 th floor test
CoAuthor of Virtualization with Xen
http://www.krisbuytaert.be/blog/
http://www.virtualization.com/
Why Virtualization Matters
Virtualization vs Virtualization
Where we come from
Now and Xen
Managing Virtual Machines
Where are we heading ? Agenda
Running different operating systems together on 1 machine
separate an operating system from the underlying platform resources What is Virtualization ?
Consolidation
Saving Idle Cycles
Security
Separating Development/Staging/Production platforms
Hardware Independence
A Greener Environment
Having a budget that needs to be emptied.
All the cool kids are doing it Why Virtualization Matters
High Availability Live Migration is not a HA solution ! Vendor Lock In
Heavy IO Don't virtualize your Databases
Don't virtualize your heavy loaded mailservers Hardware Dependencies Live Migration ? Why Virtualization is Dangerous
Single OS image: Ensim, Vserver, Solaris Zones, openVZ Group user processes into resource containers
Hard to get strong isolation
Typically used for Hosting/Virtual Hosting/ISP
Run a lot of almost identical Virtual Machines
1 single kernel Chroot’s on steroids Virtualization vs Virtualization
Full virtualization: VMware, VirtualPC, Qemu, VirtualBox Run multiple unmodified guest OSes