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.
References in periodicals archive ?
Diminished levels of steroid hormones achieved by AA treatment," the researchers observed, "affected the differential expression of LPAR isoforms specifically in PC cells.
Red Hat Enterprise Linux with KVM on LPAR addresses the problem of security and isolation in multi-tenant VM services environments, reducing the need for additional server platforms and lowering power consumption.
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.
Differences in voting power between the voting shares, as measured by LPAR, indicate that superior voting shares are worth more, as demonstrated in the results for the first regression (Model A).
As one platform providing IT with an open choice for what's best in an organization's environment, Hitachi Compute Blade enables customers to have selected blades running LPARs next to other blades, Microsoft Hyper-V or VMware, all in the same chassis.
BMC and Compuware are uniquely enabling customers to achieve these outcomes by integrating three complementary solutions: BMC Cost Analyzer for zEnterprise is a financially intelligent workload management solution that enables customers to identify MLC cost drivers and take appropriate measures to reduce those costs such as moving workloads to non-peak periods, running IBM subsystems on fewer LPARs, and capping LPAR utilization.
With an increasing number of SAP partners, including Cloud Service Providers, looking to accelerate cloud adoption with SAP HANA, SAP HANA on Hitachi LPAR offers an efficient method to help maximize consolidation without sacrificing performance.
Hitachi LPAR on x86 servers will help address customer pain points to significantly reduce total costs through consolidation, as well as improve performance and deliver high levels of data protection.
LPAR 210 MIPS (the amount of power is controlled by a Softcapping);: Disk storage device (DASD): 1.
CA OPS/MVS and CA SYSVIEW - For visualization, monitoring and automated control of system resources at the LPAR, Sysplex, and complete z10 EC configuration levels.
Specifically, Hitachi has added new functions to its logical partitioning ( LPAR ) feature Virtage, which is available on Hitachi's BladeSymphony server line, and confirmed that the new Virtage is able to stably run multiple instances of server virtualization software on top of LPARs.
Each LPAR ran three WebSphere application server instances with two processors each.