Methods to pause a z/VM guest: Optimize the resource utilization of idling servers

The startup time for servers increased during the last years. So even for development and test servers it's now common to either let them run or pause them. On z/VM with Linux on System z there are two different methods to accomplish that:

1. the basic Linux suspend / resume feature 
2. CP STOP and BEGIN mechanism

There is now a new publication looking at this in more detail, especially focused on overall performance. The paper is available on Infocenter in HTML and as PDF.