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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
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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
30:(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.
61:: 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
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added, removed or moved to another LPAR, without rebooting the operating system or the application running in an LPAR. IBM DB2 is such application (
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104:. The System z9 supports up to 60 LPARs on a single server, but mainframes also support an additional level of virtualization using
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84:, support even more sophisticated forms of dynamic LPARs. Relevant LPAR-related features on those mainframe platforms include
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for POWER also supported DLPAR, but its dynamic reconfiguration capabilities were limited to CPU capacity and
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with the ability to support thousands of operating system instances on a single server.
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http://www.ibm.com/developerworks/eserver/articles/db2_dlpar.html
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building blocks for autonomic computing on IBM pSeries
Servers.
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processor added enhanced DLPAR capabilities, including
80:mainframes and their operating systems, including
33:DLPAR has been supported by the operating systems
16:Logical partition technology in IBM POWER servers
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551:* Also based on the System/36
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86:Intelligent Resource Director
611:. You can help Knowledge by
440:Dynamic Logical Partitioning
20:Dynamic Logical Partitioning
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521:3790 Communications System
26:), is the capability of a
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570:Minicomputers on Commons
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184:mini/midrange computers
688:Operating system stubs
607:-related article is a
435:Dealer Business System
282:1442 card reader/punch
272:1402 card reader/punch
206:1442 card reader/punch
663:Hardware partitioning
489:ThinkPad Power Series
462:Quick Response Engine
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467:Single-level store
143:Micro-Partitioning
59:micro-partitioning
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613:expanding it
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43:Linux kernel
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531:BladeCenter
408:Advanced/36
368:PS/2 Server
347:System 9000
131:HiperSocket
652:Categories
299:IBM System
126:Hypervisor
378:Netfinity
373:PC Server
362:iDataPlex
335:System/38
330:System/36
325:System/34
320:System/32
560:Category
541:Series/1
357:System x
352:System p
342:System/7
312:System/3
307:System/3
241:IBM 1400
193:IBM 1130
112:See also
516:IBM 801
481:RS/6000
383:eServer
230:Calcomp
90:Sysplex
658:AS/400
450:object
445:OS/400
400:AS/400
100:, and
55:POWER5
603:This
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78:IBM Z
39:IBM i
24:DLPAR
609:stub
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106:z/VM
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37:and
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47:PCI
35:AIX
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