IBM Power Systems

Power Systems is a family of server computers from IBM that are based on its POWER processors. Before the Power Systems line was announced on April 2, 2008, IBM had two distinct POWER processor-based lines: the System i running IBM i (formerly i5/OS and OS/400) and the System p series running AIX or Linux.

History 
IBM had two distinct POWER- and PowerPC-based hardware lines since the early 1990s:
 Servers running processors based on the IBM PowerPC-AS architecture in the AS/400 family (later known as iSeries, then System i), running OS/400 (later known i5/OS, and now IBM i)
 Servers and workstations using IBM POWER and PowerPC microprocessors in the RS/6000 family (later known as pSeries, then System p), running IBM AIX and Linux.

They merged to use essentially the same hardware platform in 2001/2002 with the introduction of the POWER4 processor. After that, there was little difference between both the "p" and the "i" hardware; the only differences were in the software and services offerings. With the introduction of the POWER5 processor in 2004, even the product numbering was synchronized. The System i5 570 was virtually identical to the System p5 570.

In April 2008, IBM officially merged the two lines of servers and workstations under the same name, Power Systems, with identical hardware and a choice of operating systems, software, and service contracts. In February 2010, IBM announced new models with the new POWER7 microprocessor.

Systems 

IBM Power Systems models:

 2008/2009
 BladeCenter JS12 Express
 BladeCenter JS22 Express
 BladeCenter JS23 Express
 BladeCenter JS43 Express
 Power 520 Express
 Power 550 Express
 Power 560 Express
 Power 570
 Power 575
 Power 595
 2010
 BladeCenter PS700 Express
 BladeCenter PS701 Express
 BladeCenter PS702 Express
 Power 710 Express
 Power 720 Express
 Power 730 Express
 Power 740 Express
 Power 750 Express
 Power 755 for high-performance computing (HPC)
 Power 770
 Power 780
 Power 795
 2011
 Power 775 also known as PERCS
 2012
 Flex System p260
 Flex System p460
 Flex System p24L (Linux only)
 2014
 Power Systems S812L
 Power Systems S822 and S822L
 Power Systems S814
 Power Systems S824 and S824L
 Power Systems E870
 Power Systems E880
 2015
 Power Systems E850
 Power Systems S812L
 Power Systems S822LC

IBM PowerVM provides the virtualisation solution for Power Systems servers.

See also 
 IBM BladeCenter
 PureSystems
 Linux on Power

References

External links 
 Power Systems (Power Systems for UNIX, and Linux Clients) – IBM.com
 IBM Power Systems Redbooks
 It's Official: Now We're Power Systems and i for Business – ITjungle.com
 IBM: i + p = Power – Cnet.com
 Hardware, OS Get New Names--And That's a Good Thing – IBM Systems Magazine.com
 IBM IT Infrastructure web page 
 IBM Systems Power Systems Magazine 

Category:IBM server computers
Category:AS/400