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4405ch02 Architecture and technical overview.fm
Draft Document for Review May 28, 2009 1:59 pm
򐂰 Interface Tool (SMIT) and the IBM Systems Director Console for AIX
Linux for System p systems
Linux is an open source operating system that runs on numerous platforms from embedded
systems to mainframe computers. It provides a UNIX-like implementation across many
computer architectures.
This section discusses two brands of Linux to be run in partitions. The supported versions of
Linux on System p servers are:
򐂰 Novell SUSE Linux Enterprise Server V10 SP1 for POWER Systems or later
򐂰 Red Hat Enterprise Linux Advanced Server V4.5 for POWER or later
򐂰 Red Hat Enterprise Linux Advanced Server V5.1 for Power or later
The PowerVM features are supported in Version 2.6.9 and above of the Linux kernel. The
commercially available latest distributions from Red Hat, Inc. (RHEL AS 5) and Novell SUSE
Linux (SLES 10) support the IBM system p 64-bit architectures and are based on this 2.6
kernel series.
Clients wishing to configure Linux partitions in virtualized System p systems should consider
the following:
򐂰 Not all devices and features supported by the AIX operating system are supported in
logical partitions running the Linux operating system.
򐂰 Linux operating system licenses are ordered separately from the hardware. Clients can
acquire Linux operating system licenses from IBM, to be included with their System 570 or
from other Linux distributors.
For information about the features and external devices supported by Linux refer to:
http://www-03.ibm.com/systems/p/os/linux/index.html
For information about SUSE Linux Enterprise Server 10, refer to:
http://www.novell.com/products/server
For information about Red Hat Enterprise Linux Advanced Server 5, refer to:
http://www.redhat.com/rhel/features
Supported virtualization features
SLES 10, RHEL AS 4.5 and RHEL AS 5 support the following virtualization features:
򐂰 Virtual SCSI, including for the boot device
򐂰 Shared-processor partitions and virtual processors, capped and uncapped
򐂰 Dedicated-processor partitions
򐂰 Dynamic reconfiguration of processors
򐂰 Virtual Ethernet, including connections through the Shared Ethernet Adapter in the Virtual
I/O Server to a physical Ethernet connection
򐂰 Simultaneous multithreading (SMT)
SLES 10, RHEL AS 4.5, and RHEL AS 5 do not support the following:
򐂰 Dynamic reconfiguration of memory
򐂰 Dynamic reconfiguration of I/O slot
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IBM Power 570 Technical Overview and Introduction