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LPAR |
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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. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | 3 in an LPAR, and provides instructions for tuning memory and processor performance, Linux swapping, virtual machine scheduling, maximizing the operation of disks, and selecting network options. atsec information security, Austin, Texas, has completed a Common Criteria evaluation of IBM Processor Resource/System Manager (PR/SM) LPAR for IBM System z9 Business Class (z9 BC) and z9 Enterprise Class (z9 EC) at evaluation assurance level (EAL) 5. Per LPAR -- a variant of capacity-based pricing is to price by a sub-machine component such as when a computer is divided into virtual or logical partitions (LPARs). |
LPAR |
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