Changes

 * Checkpoint/Restart** Zap : http://www.ncl.cs.columbia.edu/publications/usenix2007_fordist.pdf** Metacluster : http://lxc.sourceforge.net/doc/ols2006/lxc-ols2006.pdf** OpenVZ : http://wiki.openvz.org/Checkpointing_and_live_migration** Checkpoint/Restart technology : http://en.wikipedia.org/wiki/Application_checkpointing** Virtual Servers and Checkpoint/Restart in Mainstream Linux : Sigops document** Remote fork: http://www.cse.nd.edu/~dthain/courses/classconf/wowsys2004/talks/rfork.pdf** Vmadump : http://bproc.sourceforge.net/c268.html** Posix CR : http://techpubs.sgi.com/library/tpl/cgi-bin/getdoc.cgi/0650/bks/SGI_Admin/CPR_OG/sgi_html/ch03.html** An OS services overview : http://sw-eng.falls-church.va.us/itsg/P08V31.htm