Port Adapters (PA)

HP 9000 is the name for a line of computer systems produced by the Hewlett-Packard (HP) company. The first system in this line was the Series 520, introduced in 1982. Earlier models, such as the HP 9836, HP 9816, etc., was later merged into the HP 9000 lineup as the Series 200. more...

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All models in the HP 9000 line can run the HP-UX operating system, except many of the Series 200.

Initially, the HP 9000 Series 500 line of computers used HP's FOCUS architecture. After incorporating the HP 9836 into the family, HP adopted Motorola's 68k architecture for its HP 9000 Series 200, HP 9000 Series 300, and later HP 9000 Series 400 HP-UX workstations. Later, in the end of the 80s HP started to switch over to its own proprietary PA-RISC design, for the Series 700, 800, and later lines. Current models use either PA-RISC or the successor HP/Intel IA-64 (Itanium 2) architecture.

HP released the Series 400, also known as the Apollo 400, after acquiring Apollo Computer in 1989. These models had the ability to run either HP's HP-UX or Apollo's Domain/OS.

In 2001, HP changed the naming scheme for their HP 9000 servers. The A-class systems were renamed as the rp2400s, the L-class became the rp5400s, and the N-class the rp7400s. The 'p' in the prefix signified a PA-RISC architecture, while an 'x' is used for the Integrity servers with IA-64 processors. The Integrity servers are listed here: HP Integrity.

Series and Models

The following series and models have been produced by the HP company in the HP 9000 line.

Old Series Servers

800 Series — 807, 817, 822, 825, 827, 832, 835, 837, 842, 845, 847, 850,855, 857, 867, 877, 887, 897; 1200 FT Series — 1210, 1245, 1245 PLUS; D-class — D200, D210, D220, D230, D250, D260, D270, D280, D300, D310, D320, D330, D350, D360, D370, D380, D390; E-class — E25, E35, E45, E55; F-class — F10, F20, F30; G-class — G30, G40, G50, G60, G70; H-class — H20, H30, H40, H50, H60, H70; I-class — I30, I40, I50, I60, I70; K-class — K100, K200, K210, K220, K250, K260, K370, K380, K400, K410, K420, K450, K460, K570, K580; R-class — R380, R390; T-class — T500, T520, T600; V-class — V2200, V2250, V2500, V2600;

D-class

The D-class is a 5U server with up to 2 CPUs. You sometimes find them masquerading as larger machines because HP shipped them mounted vertically inside of a huge cabinet with a power supply and disks and plenty of room for cooling air to circulate.

N-class

The N-class is a 10U server with up to 8 CPUs and 17 PCI slots with 15 available for the customer. It uses two Merced busses, one for each set of four processor slots. It is not a NUMA machine, having equal access to all memory slots. The I/O is unequal though, having one Ike IOMMU per bus means that one set of CPUs are closer to one set of I/O slots than the other.

Read more at Wikipedia.org