http://www.virtualmin.com/cloudmin/ CloudMin, paid software
http://www.convirture.com/products_opensource.php - free, measures virtual machines performance
http://virt-manager.et.redhat.com/ - free
http://www.zentific.com/ - has web page interface to manage XEN virtual machines

http://www.xvpsource.org/ - free, seems good
http://www.xencloudcontrol.com/

http://socializedsoftware.com/2010/01/20/eleven-open-source-cloud-computing-projects-to-watch/

http://cacti.net/ performance measuring tool with online web interface
http://pookey.co.uk/wordpress/archives/54-monitoring-xen-via-snmp

how to use RRD
http://oss.oetiker.ch/rrdtool/tut/rrdtutorial.en.html
http://www.taedium.com/rrd-iptraf/
http://net.doit.wisc.edu/~dwcarder/rrdcache/


how to add startup script in ubuntu
http://embraceubuntu.com/2005/09/07/adding-a-startup-script-to-be-run-at-bootup/

