PA200 - Cloud Computing Concepts
Petr Blaho
February 20, 2017
Virtualization
Why?
Consolidation of resources
Virtual vs Physical machine inspection
Easy provisioning
Movable resource
Why?
Recoverable
Easier testing and evaluation
Duplication of environments
Isolation from host HW and OS
Hypervisors
native
hosted
Hypervisors
Examples of native hypervisors
XEN
MS Hyper-V
VMware ESXi
Examples of hosted hypervisors
QEMU
KVM
VirtualBox
VMware Workstation
XEN
founded in 2003 by XenSource, bought in 2007 by Citrix
2013 under Linux Foundation as Xen Project
native hypervisor
ZEN
KVM
Modular kernel virtualization
provides user space access to hw virtualization
started by Qumranet
2007 merged into linux kernel
KVM
QEMU
hosted hypervisor
provides emulation of hw
can be used with KVM for hw virtualization
Libvirt
Common API for hypervisor type abstraction
supports
LXC
KVM/QEMU, Xen, VirtualBox
VMware ESXi and Workstation
MS Hyper-V, IBM PowerVM
Libvirt
oVirt
virtualization management platform
on top of KVM
upstream for RHV
engine
node
VDSM - virtual desktop and server manager
OpenStack
software platform for cloud computing
started in 2010 by Rackspace and NASA
in 2012 founded OpenStack Foundation
OpenStack
OpenStack
Containers
Docker
LXC
OpenVZ
chroot
Recap
Why we should use virtualization?
What types of hypervisors we know? Any examples?
Name some projects that uses or build on top of hypervisor
technologies.