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.
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References in periodicals archive ?
Based on the hypothesis of steroid dependency of the proliferation-stimulating LPAR, the researchers assessed the expressions of LPAR1 to LPAR6 in the presence of AA by propagating prostate cancer cell lines, namely PC-3 (highly metastatic) and LNCaP (low metastatic potential).
Today's announcement allows Virtage users to utilize both Hitachi LPAR's near hardware level stability and isolation, and Red Hat Enterprise Linux with KVM's high performance, industry-leading virtualization features and high-level Linux compatibility.
Without soft capping you are charged the maximum R4H average per LPAR; with soft capping your charge by LPAR is based on the maximum R4H average or the defined capacity that you set, whichever is lower.
While LPAR captures the inequality of voting rights between voting shares, it does not take into account the nonvoting shares.
To determine the role of LPAR in LPA-stimulated DR6 upregulation, we treated the cells with Ki16425 (3 [micro]M), an LPA1/3 antagonist prior addition of LPA.
Using four z990 engines to support two Linux WebFOCUS clients and 20 z990 engines to support one Linux WebFOCUS report server under IBM z/VM software in one LPAR to access DB2 database for z/OS on a different LPAR via Hipersocket, it demonstrated strong WebFOCUS server scalability.
Using a different server or LPAR (logical partition), the validity of the database could be insured as a result of a background processing task against the mirror without interrupting the production usage of the source data.