Virtualization short cuts for noobs

Virtualization short cuts for noobs

Introduction

References

http://en.gentoo-wiki.com/wiki/Bridging_Network_Interfaces

http://en.gentoo-wiki.com/wiki/KVM#Networking_2

Shows direct and indirect bridging.

Open issues

how to pin Dom0

How do we pin Dom0 to a specific CPU?

Operating Environment

Which packages you need in order to run virtualization.

Storage

• File based
• LVM Based
• NFS based
• iSCSI

Network

Network configuration needs.

• Bridging
  • Direct
  • NAT
• NAT/Route

Administration

virsch

virsh help lists the supported commands.

Virsh operations commands of interest

console

get access to the console in the DomU.

destroy

as if you pulled the power cord, preferably use 'shutdown'.

reboot

reboot the domain.

shutdown

shutdown the domain.

undefine

remove all references to the domain. (Note; not sure if it is actually *all*).

dumpxml

list

List the active domains.

Virsh network commands of interest

domifstat

interface statistics.

• virsh domifstat z3 vif7.0

attach-interface

attach a network interface.

• virsh attach-interface z3 bridge eth1 --target eth1 --mac xx:xx:xx:xx:xx:xx

net-list

list networks.

Creating DomUs

Creating a CentOS 5.5 DomU

source:NFS, storage:LVM network:bridge;4

virt-install -p --name=z4 --ram=512 --vcpus=1 --disk path=/dev/loom/z4 --os-type=linux --os-variant=rhel5 --location=nfs:192.168.42.132:/exports/isos/centos55 -x "ks=nfs:192.168.42.132:/exports/ks/anaconda-ks.cfg ip=192.168.42.31 netmask=255.255.255.0 gateway=192.168.42.132 dns=192.168.42.32"