- Linux on Power
Linuxis a computer operating systemthat runs on Power Architecturetechnology, a microprocessorarchitecture.
Linuxon "e"Server p5 series, formerly called RS/6000 (for "RISC System/6000"), is a ppc64 Linuxport running on IBMPOWER based servers.Since the release of "e"Server p5 series and the Linux 2.6 kernel, Linux can use POWER5 features such as logical partitioning, micro-partitioningand RAS. IBM also has an entry/midrange line of servers called OpenPowerwhich only run Linux - other p5 servers can also run the AIX operating system.
Virtualization on p6 and OpenPower
Power6 based IBM systems have built in
virtualizationcapabilities derived from mainframe technology. There is an additional layer between hardware and operating systems which is called the hypervisor. IBM p6 systems support up to 256 logical partitions on one machine, with a maximum of 10 per processor. Those micropartitions run in a shared processor pool and can utilize automatic load balancing. The hypervisor also allows the assignment of virtual I/O and network adapters to logical partitions.
* For network virtualization it acts as a virtual switch, and a dedicated virtual I/O server (VIO) partition (running a
Linuxor AIX-based system) provides a bridge to the real network.
SCSIis achieved through virtual SCSI device assignment to the VIO and client LPARand linking them to each other, with the VIO server having real storage and parts of it (whole disks, logical volumes or partitions) are shared to the clients.
SUSEEnterprise Linux or Debianinstallation with real resources assigned can be used as a virtual I/O server. There are only two kernel modules: ibmvscsis and ibmveth that needs to be loaded to provide this functionality. Both modules are under the GPL and part of the distribution kernel.
For dynamic LPAR changes (e.g. adding CPU, Memory or removing PCI adapter) on the fly some [http://www14.software.ibm.com/webapp/set2/sas/f/lopdiags lopdiags additional packages] are needed for RSCT (Reliable Scalable Cluster Technology) communication with the HMC (Hardware Management Console). Those packages are provided from IBM in RPM format but not in source code. After installing this packages dynamic reconfiguration of CPU and hotpluggable PCI adapters can be done without rebooting the operating system. Reducing the memory amount assigned to the logical partition still requires reboot of the target LPAR.
Officially supported distributions
* For IBM System p and i –
SUSESLES8, SLES9 and SLES10Fact|date=September 2007
* For IBM System p and i –
Red HatEL AS 3 and 4Fact|date=September 2007
Linux on zSeries
Linux for PlayStation 3
* [http://www-03.ibm.com/systems/p/ Main IBM System p5 site]
* [http://www.ibm.com/servers/eserver/linux/power/index.html IBM Linux on Power Portal]
* [http://www.pseriestech.org/forum/linux-for-power-systems/ IBM Linux on Power Support]
* [http://oss.gonicus.de/openpower Linux on Power wiki]
* [http://www-941.ibm.com/collaboration/wiki/display/LinuxP/Home IBM hosted Linux on Power wiki]
* [http://ibm.com/developerWorks/linux/power IBM developerWorks Linux on Power Architecture Developer's Corner]
* [http://www.pseriestech.org/forum/linux-virtualization/ Linux on Power Virtualization]
* [http://www.davidstclair.co.uk/ibm-p-series/building-an-ibm-p-series-vio-server-using-an-hmc.html AIX on Power VIO]
* [http://www-1.ibm.com/partnerworld/pwhome.nsf/weblook/pat_linux_learn_why_power.html Linux on Power resources for IBM Business Partners]
* [http://www.powerlinux.com PowerLinux, a hobbyist site with related news and links about Linux on Power]
Wikimedia Foundation. 2010.
Look at other dictionaries:
Linux on zSeries — Linux on System z is the collective term for the Linux operating system compiled to run on IBM mainframes, especially System z machines. Other terms with the same meaning include Linux/390, Linux on zSeries, Linux for zSeries, Linux on System z9 … Wikipedia
Linux adoption — This article covers adoption of the Linux operating system by homes, organizations, companies, and governments. Linux migration is the change from using other operating systems to using Linux. HistoryLinux powered personal computers account for… … Wikipedia
Linux on System z — History of IBM mainframe operating systems On early mainframe computers: GM OS GM NAA I/O 1955 BESYS 1957 UMES 1958 SOS 1959 IBSYS 1960 CTSS 1961 On S/360 and successors: BOS/360 1965 TOS/360 1965 TSS/360 1967 MTS 1967 … Wikipedia
Linux-Kernel — Linux (Kernel) Entwickler Linus Torvalds u. v. m. Sprache(n) … Deutsch Wikipedia
Linux Kernel — Linux (Kernel) Entwickler Linus Torvalds u. v. m. Sprache(n) … Deutsch Wikipedia
Linux (Kernel) — Bildschirmfoto … Deutsch Wikipedia
Power Architecture — is a broad term to describe similar instruction sets for RISC microprocessors developed and manufactured by such companies as IBM, Freescale, AMCC, Tundra and P.A. Semi. The governing body is Power.org, comprising over 40 companies and… … Wikipedia
Power Systems — имя линейки серверов основанной на архитектуре POWER. Power Systems возникла после объединения серверных платформ IBM System i и System p и работает под управлением ОС IBM I (известной ранее как i5/OS и OS/400), IBM AIX или Linux. Power Systems… … Википедия
Power.org — is an organization whose purpose is to develop, enable and promote Power Architecture technology. The objective is to establish open standards, guidelines, best practices and certifications regarding Power Architecture, as well as drive adoption… … Wikipedia
Power.org — désigne un organisme dont le but est de développer et promouvoir la technologie liée à l architecture de processeur RISC Power. Son objectif consiste en la définition de standards ouverts et de paradigmes technologiques et scientifiques… … Wikipédia en Français