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An nPartition is a hard partition technology in Hewlett Packard Enterprise's (formerly Hewlett-Packard) Virtual Server Environment. nPartitions (or nPar) are electrically isolated from other nPar partitions within the same chassis. Cells (a unit of processors/IO/memory) make up nPar partitions. Being electrically isolated means that if a nPar partition were to fail due to hardware failure, then the other nPar partitions would continue to work. This is contrasted with vPar partitions which exist within nPar partitions in which a failure at the hardware level for a nPar would affect all vPars within that nPar.
The principle of nPartitioning[1] in HP Cell based systems is to combine several cells to increase the computing power of a system by adding more memory/processors/IO. This in contrast to vPartitioning where you slice bigger hardware (nPars) into smaller systems to which you dedicate hardware.
This is valid for all mid-range (rp74/rx7600, rp84/rx8600) and all Superdome servers.
When buying a mid-range server from HP with only one cell, the customer might realize over time that his database system requires more computing power, thus by buying an addon cell he can add this cell to his existing nPar (with only one cell) to create a new nPar consisting of two cells, which in a maximum configuration would mean double the number of CPUs and memory.
This can be done on any cell based system, this includes the mid-range family and the Superdome.
If the cells are added as floating cells (no interleaved memory) they can also be warm added and removed from the partition.
In a mid-range server you can choose to have 1-4 nPartitions (dependent on model), with all cells populated and 1 nPartition configured a rp84\8600 series would have 16CPU sockets, 64 DIMM slots and 15 I/O slots available.
However the customer can configure 4 separate nPartitions (with a rp/rx8000 family and an IO-Extender cabinet) which would each have 4 CPU sockets, 16 DIMM slots and 7 I/O slots available.
Though in a Superdome system, the customer can have 1-16 nPartitions (because the Superdome can fit 16 cellboards), in a fully configured HP Superdome, this would give the customer running 1 nPartition access to 64 CPU sockets, 512 DIMM slots and 192 I/O slots, or any combination of cells and I/O cages.
In a rp74/rx7600 family there is no physical limit to how to configure the nPartitions, however CPU/Memory usage may be limited by software like iCAP (HP-UX) or giCAP.[2]
However, on a rp84/rx8600 family server you are limited to a maximum of two nPartitions without buying an IO-Extender cabinet, this in because each partition requires access to I/O slots (or CORE-IO) and the server itself only has two logical I/O domains (on one physical I/O board)
The HP Superdome on the other hand is more flexible, each cell can be connected to an individual I/O cage via a RIO cable, which means in a 1 cabinet Superdome with two I/O cages you are limited to two nPartitions maximum, or if you have a 2 cabinet Superdome and two IO-Extender cabinets you can have up to 16 nPartitions, or any combination therein.
On the Superdome you have four-cell slices called "Quadrants" which means that within this slice you will have better / faster intercommunication between the cells, and the guidelines on nPartitioning should be followed here, this does not apply to mid-range servers since they have a maximum of four cells.
You are not allowed to mix PA-RISC and itanium cells in one nPar, nor are you allowed to mix CPU steppings
There are several ways to edit the nPartition configuration :
{{cite web}}: CS1 maint: deprecated archival service (link)
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Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
An nPartition is a hard partition technology in Hewlett Packard Enterprise's (formerly Hewlett-Packard) Virtual Server Environment. nPartitions (or nPar) are electrically isolated from other nPar partitions within the same chassis. Cells (a unit of processors/IO/memory) make up nPar partitions. Being electrically isolated means that if a nPar partition were to fail due to hardware failure, then the other nPar partitions would continue to work. This is contrasted with vPar partitions which exist within nPar partitions in which a failure at the hardware level for a nPar would affect all vPars within that nPar. The principle of nPartitioning in HP Cell based systems is to combine several cells to increase the computing power of a system by adding more memory/processors/IO. This in contrast to vPartitioning where you slice bigger hardware (nPars) into smaller systems to which you dedicate hardware. This is valid for all mid-range (rp74/rx7600, rp84/rx8600) and all Superdome servers.
Compaq Computer Corporation was an American information technology company founded in 1982 that developed, sold, and supported computers and related products and services. Compaq produced some of the first IBM PC compatible computers, being the second company after Columbia Data Products to legally reverse engineer the BIOS of the IBM Personal Computer. It rose to become the largest supplier of PC systems during the 1990s. The company was initially based in Harris County, Texas. The company was formed by Rod Canion, Jim Harris, and Bill Murto, all of whom were former Texas Instruments senior managers. All three had left Compaq in 1991 due to an internal shakeup, and saw Eckhard Pfeiffer appointed as president and CEO, who served throughout the 1990s. Ben Rosen provided the venture capital financing for the fledgling company and served as chairman of the board for 17 years from 1983 until September 28, 2000, when he retired and was succeeded by Michael Capellas, who served as its last chairman and CEO until its merger. Compaq was overtaken by Dell as the top global PC maker two times; one in 1999 and the other in 2001. Struggling to keep up against its competitors with the price wars against Dell, the launch of a joint venture with ADI Corporation in 1994, and a risky acquisition of DEC in 1998 (which includes the inheritance of the DEC Alpha family of CPUs), Compaq was acquired by Hewlett-Packard (HP) for US$25 billion in 2002. Despite using the Compaq name in HP's own HP Compaq brand of business computers, which served as a replacement for the Compaq Evo in 2003 as well as the HP ProBook brand in 2009, the Compaq brand as a whole remained in use by HP for lower-end systems until 2013 when it was discontinued. In 2015, HP itself was split up into two companies, leading to its legal successors HP Inc. and Hewlett Packard Enterprise. As of 2025, the Compaq brand is currently licensed to third parties outside of North America for use on electronics in Latin America (e.g., Mexico and Brazil) and India.
3Com Corporation was an American digital electronics manufacturer best known for its computer network products. The company was co-founded in 1979 by Robert Metcalfe, Howard Charney and others. Bill Krause joined as President in 1981. Metcalfe explained the name 3Com was a contraction of "Computer Communication Compatibility", with its focus on Ethernet technology that he had co-invented, which enabled the networking of computers. 3Com provided network interface controller and switches, routers, wireless access points and controllers, IP voice systems, and intrusion prevention systems. The company was based in Santa Clara, California. From its 2007 acquisition of 100 percent ownership of H3C Technologies Co., Limited (H3C) —initially a joint venture with China-based Huawei Technologies—3Com achieved a market presence in China, and also sold products in Europe, Asia, and the Americas. 3Com products were sold under the brands 3Com, H3C, and TippingPoint. On April 12, 2010, Hewlett-Packard completed the acquisition of 3Com. It was merged into HPE's Aruba Networks business unit following HP's acquisition of Aruba in 2015 and subsequent split into HPE later that same year.
HP-UX (from "Hewlett Packard Unix") is a discontinued proprietary implementation of the Unix operating system developed by Hewlett Packard Enterprise, now out of standard support (Mature Support on HPE Integrity without Sustaining Engineering through at least 2028); the final versions support HPE Integrity Servers, based on Intel's Itanium architecture. It is based on Unix System V (initially System III) and first released in 1984. Earlier versions of HP-UX supported the HP Integral PC and HP 9000 Series 200, 300, and 400 computer systems based on the Motorola 68000 series of processors, the HP 9000 Series 500 computers based on HP's proprietary FOCUS architecture, and later HP 9000 Series models based on HP's PA-RISC instruction set architecture. HP-UX was the first Unix to offer access-control lists for file access permissions as an alternative to the standard Unix permissions system. HP-UX was also among the first Unix systems to include a built-in logical volume manager. Following the discontinuation of Itanium processors, support for HP-UX ended on December 31, 2025. HP-UX 11i (the latest then-supported version) is certified to The Open Group's older UNIX 03 standard. Previous releases were certified to the UNIX 95 standard.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Shirley Chisholm, elected in 1968.
