IBM POWER6 partition mobility: Moving virtual servers seamlessly between physical systems

Autor: W. J. Armstrong, Timothy R. Marchini, Naresh Nayar, Richard Louis Arndt, Wolfram Sauer
Rok vydání: 2007
Předmět:
Zdroj: IBM Journal of Research and Development. 51:757-762
ISSN: 0018-8646
DOI: 10.1147/rd.516.0757
Popis: This paper presents the IBM Power Architecture™ extension for enhanced virtualization that is first implemented in the POWER6™ processor. Virtual partition memory enables all of the memory of a virtual server running in a logical partition to be made virtual by the POWER Hypervisor™ firmware. The Processor Compatibility register allows backward compatibility by providing a mode in which a POWER6 processor behaves like a POWER5™ processor. Enhancements to the timebase facility enable updates to the virtual timebase of a logical partition while maintaining consistency with other partitions in the system. These fundamental enhancements are explained and their role in implementing the new partition mobility junction is described. Partition mobility allows the seamless migration of virtual servers from one physical POWER6 microprocessor-based system to another.
Databáze: OpenAIRE