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LPAR
(redirected from Logical Partitioning)

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LPAR
(Logical PARtition) A logical segmentation of a mainframe's memory and other resources that allows it to run its own copy of the operating system and associated applications. LPARs are caused by special hardware circuits and allow multiple system images to run in one machine. This can be multiple instances of the same operating system or different operating systems. In the IBM world, this is known as a "virtualized processor complex."

IBM's PR/SM ("prism"), Hitachi's MLPF and Amdahl's MDF are examples of LPARs. MDF was the first to provide in hardware the equivalent of IBM's VM operating system, which supports multiple system images in software. Interestingly, an LPAR can host VM, which itself can host multiple operating systems. See PR/SM and virtual machine.
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2 release, including a new Virtual Fabrics capability that enables the logical partitioning of a physical SAN into logical fabrics.
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PR/SM's logical partitioning facility enables the resources of a single physical zSeries machine to be divided and shared by distinct logical machines, each capable of running z/VM, z/OS or Linux.
ATSEC EVALUATES PR/SM LPAR FOR IBM Z9 BIZ\ENTERPRISE by Mainframe Computing
With the announcement, Hitachi is enabling companies of all sizes to truly realize the business benefits of Application Optimized Storage solutions, as now even the smallest companies can enjoy the benefits of virtualization by optimizing the performance of their most pressing business applications--such as Microsoft Exchange or Oracle Financials--utilizing the Logical Partitioning capabilities of Hitachi's integrated new fleet of midrange offerings.
Hitachi launches full scale assault on midrange storage market by EDP Weekly's IT Monitor
 
 
 
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