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The Virtualization Cookbook for IBM z/VM 6.3, RHEL 6.4, and SLES 11 SP3 by Daniel Ruutz, Filipe Miranda, Michael MacIsaac, Berthold Gunreben, Marian Gasparovic, Lydia Parziale

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z/VM live guest relocation
If the facts don't fit the theory, change the facts.
— Albert Einstein
z/VM 6.2 and later have the ability to relocate Linux guests between members in a single system image (SSI) cluster. This is known as live guest relocation (LGR). While continuing to run, Linux systems can be moved cross-LPAR on the same CEC, or cross-CEC, if the SSI is set up that way. This new function allows for very few or even no planned outages.
In this chapter, we provide a brief overview of LGR and information about how to relocate a Linux ...

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