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- Dynamic_Logical_Partitioning abstract "Dynamic Logical Partitioning (DLPAR), is the capability of a logical partition (LPAR) to be reconfigured dynamically, without having to shut down the operating system that runs in the LPAR. DLPAR enables memory, CPU capacity, and I/O interfaces to be moved nondisruptively between LPARs within the same server.DLPAR has been supported by the operating systems AIX and i5/OS on almost all POWER4 and follow-on POWER systems since then. The Linux kernel for POWER also supported DLPAR, but its dynamic reconfiguration capabilities were limited to CPU capacity and PCI devices, but not memory. In October 2009, seven years after the AIX announcement of DLPAR of memory, CPU and IO slots, Linux finally added the capability to DLPAR memory on POWER systems. The fundamentals of DLPAR are described in the IBM Systems Journal paper titled: "Dynamic reconfiguration: Basic building blocks for autonomic computing on IBM pSeries Servers.Later on, the POWER5 processor added enhanced DLPAR capabilities, including micro-partitioning: up to 10 LPARs can be configured per processor, with a single multiprocessor server supporting a maximum of 254 LPARs (and thus up to 254 independent operating system instances). There are many interesting applications of DLPAR capabilities. Primarily, it is used to build agile infrastructures, or to automate hardware system resource allocation, planning, and provisioning. This in turn results in increased system utilization. For example, memory, processor or I/O slots can be added, removed or moved to another LPAR, without rebooting the operating system or the application running in an LPAR. IBM DB2 is such application (http://www.ibm.com/developerworks/eserver/articles/db2_dlpar.html), it is aware of the DLPAR events and automatically tunes itself to changing LPAR resources.The System z9 and zSeries mainframes and their operating systems, including Linux on z Systems, support even more sophisticated forms of dynamic LPARs. Relevant LPAR-related features on those mainframe platforms include Intelligent Resource Director, Sysplex, Parallel Sysplex, Geographically Dispersed Parallel Sysplex, and Hipersockets. The System z9 supports up to 60 LPARs on a single server, but mainframes also support an additional level of virtualization using z/VM with the ability to support thousands of operating system instances on a single server.".
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- Dynamic_Logical_Partitioning wikiPageWikiLink AIX_operating_system.
- Dynamic_Logical_Partitioning wikiPageWikiLink 400.
- Dynamic_Logical_Partitioning wikiPageWikiLink Category:IBM_mainframe_operating_systems.
- Dynamic_Logical_Partitioning wikiPageWikiLink Category:IBM_mainframe_technology.
- Dynamic_Logical_Partitioning wikiPageWikiLink Category:IBM_storage_devices.
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- Dynamic_Logical_Partitioning wikiPageWikiLink Category:Virtualization_software.
- Dynamic_Logical_Partitioning wikiPageWikiLink Conventional_PCI.
- Dynamic_Logical_Partitioning wikiPageWikiLink HiperSocket.
- Dynamic_Logical_Partitioning wikiPageWikiLink Hipersockets.
- Dynamic_Logical_Partitioning wikiPageWikiLink Hypervisor.
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- Dynamic_Logical_Partitioning wikiPageWikiLink LPAR.
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- Dynamic_Logical_Partitioning wikiPageWikiLink Logical_partition.
- Dynamic_Logical_Partitioning wikiPageWikiLink Logical_partition_(virtual_computing_platform).
- Dynamic_Logical_Partitioning wikiPageWikiLink Micro-Partitioning.
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- Dynamic_Logical_Partitioning wikiPageWikiLink Operating_system-level_virtualization.
- Dynamic_Logical_Partitioning wikiPageWikiLink POWER5.
- Dynamic_Logical_Partitioning wikiPageWikiLink Peripheral_Component_Interconnect.
- Dynamic_Logical_Partitioning wikiPageWikiLink System_z9.
- Dynamic_Logical_Partitioning wikiPageWikiLink VM.
- Dynamic_Logical_Partitioning wikiPageWikiLink ZSeries.
- Dynamic_Logical_Partitioning wikiPageWikiLinkText "DLPAR (Dynamic Logical Partitioning)".
- Dynamic_Logical_Partitioning wikiPageWikiLinkText "DLPAR".
- Dynamic_Logical_Partitioning wikiPageWikiLinkText "Dynamic LPAR".
- Dynamic_Logical_Partitioning wikiPageWikiLinkText "Dynamic Logical Partitioning (DLPAR)".
- Dynamic_Logical_Partitioning wikiPageWikiLinkText "Dynamic Logical Partitioning".
- Dynamic_Logical_Partitioning wikiPageWikiLinkText "dynamic logical partitioning".
- Dynamic_Logical_Partitioning hasPhotoCollection Dynamic_Logical_Partitioning.
- Dynamic_Logical_Partitioning wikiPageUsesTemplate Template:Operating-system-stub.
- Dynamic_Logical_Partitioning subject 400.
- Dynamic_Logical_Partitioning subject Category:IBM_mainframe_operating_systems.
- Dynamic_Logical_Partitioning subject Category:IBM_mainframe_technology.
- Dynamic_Logical_Partitioning subject Category:IBM_storage_devices.
- Dynamic_Logical_Partitioning subject Category:Power_Architecture.
- Dynamic_Logical_Partitioning subject Category:Virtualization_software.
- Dynamic_Logical_Partitioning hypernym Capability.
- Dynamic_Logical_Partitioning type Weapon.
- Dynamic_Logical_Partitioning type Computer.
- Dynamic_Logical_Partitioning type Layer.
- Dynamic_Logical_Partitioning comment "Dynamic Logical Partitioning (DLPAR), is the capability of a logical partition (LPAR) to be reconfigured dynamically, without having to shut down the operating system that runs in the LPAR. DLPAR enables memory, CPU capacity, and I/O interfaces to be moved nondisruptively between LPARs within the same server.DLPAR has been supported by the operating systems AIX and i5/OS on almost all POWER4 and follow-on POWER systems since then.".
- Dynamic_Logical_Partitioning label "Dynamic Logical Partitioning".
- Dynamic_Logical_Partitioning sameAs Dynamic_Logical_Partitioning.
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- Dynamic_Logical_Partitioning sameAs Q5318914.
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- Dynamic_Logical_Partitioning wasDerivedFrom Dynamic_Logical_Partitioning?oldid=664264383.
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