What's New in SUSE Linux Enterprise Server 11 SP1

What's New in
SUSE Linux Enterprise Server 11 SP 1

Marcus Kraft
Product Management, SLES for System z
mkraft@novell.com

Patrick Quairoli
Technical Alliance Manager
pquairoli@novell.com

July 16, 2010

SUSE Linux Enterprise Server
®

A highly reliable, scalable and
secure server operating system,
built to power both physical and
virtual mission-critical
workloads.

An affordable, interoperable and
manageable open source
foundation that enterprises can
use to cost-effectively deliver
core business services, enable
secure networks and easily
manage their heterogeneous IT
resources, maximizing
efficiency and value.
2 © Novell, Inc. All rights reserved.

®

Competitive Advantages

SLE 11 SP 1 is not a “.0” release: proven capabilities
and technologies
Availability on the architecture of your choice: x86,
x86_64, POWER, Itanium, System z
Proven Scalability + Kernel Resource Management*
Pricing advantage in virtual environments
Tickless Idle / Tickless Kernel available since 2009
Simplified Systems Management with YaST,
WebYaST and SMT
Security without the pain, AppArmor and System
defaults provide protection with a simple UI.

®

5000+ Certified ISV Applications

June 2010

* Red Hat totals for May and June 2010 are estimates based on
recent trends. Fully accurate bar chart is scheduled for July 2010.


SUSE Linux Enterprise Server 11 Service Pack 1
®

Scalability Today
• The only enterprise Linux operating system that helps
customers
– Manage several workloads within one Linux instance in a lightweight
manner by providing Kernel Resource Management with Control Groups
– Compute huge amounts of data in memory, e.g. in data- warehouse and
ERP systems, by supporting 16TiB RAM
(and beyond) on certified hardware
– Improve efficiency by leveraging HW support for power saving features
due to the “tickles idle” Kernel, i.e. individual cores can be sent to sleep
completely


®

Scalability Future
• Container Technology (based on lxc) extends Kernel Resource
Management and enables you to create lightweight virtualization-
like separations for better load management and higher security
(soft partitioning)
• With the increasing number of cores per system, improvements
in power management and scheduling are key to control costs
in physical and virtualized environments
• Local storage: maintain existing capabilities (e.g. XFS) and
introduce btrfs as a supported solution, to improve manageability
and give customers a maximum of flexibility
• Expand network filesystem capabilities (NFSv4.x/pNFS), to
improve performance, reliability and security of filesystems
across datacenter networks


®

Reliability Today
• Reliability – Availability – Serviceability (RAS)
– Strong cooperation with IBM on providing a Linux OS optimized
for mission critical workloads on System z
– Support hardware RAS features bringing AMD64/Intel64
systems on par with traditional RISC systems
– Large blade centers benefit from swap over NFS swap over
NFS capabilities to centralize swap space and improve
availability of the datacenter
– Cost savings by using built-in device-mapper MultiPath I/O
(MPIO) replacing expensive commercial solutions.
– Increased redundancy through support of RAID 6, RAID 10
– Scheduler optimizations and support for new floating point
features improve performance and save costs

®

Reliability Future
• Improve support for hardware based RAS capabilities
on all architectures, specifically
– Intel “SandyBridge”
– IBM System z
• Support for the btrfs filesystem
– Reduce cost of storage management by providing an
integration of logical volume management and filesystem
– Checksums on data and metadata ensure data integrity
• Enable customers to run SLES systems “uninterrupted”
– Snapshot/rollback for full system (based on btrfs)
– Kernel patching without reboot (using ksplice)
– Migrating processes to more reliable memory
(“Memory migration”)

®

Systems Management Today
• YaST – unique, highly integrated local management tool
– Ease of use, effective learning curve; reduces training efforts
– Automation via AutoYaST datacenter mass deployments
– WebYaST delivers administrative functionality via remote hosts
• Fastest Open Source update stack (ZYPP)
– Reduce management time, effort and costs
– Improve reliability and availability by reducing downtimes
– ZYPP handles multiple installed package versions (e.g. Kernel)
• Cost free Subscription Management Tool and Proxy
– Ensure security perimeters
– Manage and control compliance of subscriptions
• CIM instrumentation
– Remote administration standard:datacenter integration
• New maintenance model: more flexibility for
customers while retaining full control and stability

®

Systems Management Future
• Enable customers to rollback changes to the system,
which have been unwanted (administrator error) or did
show unwanted results or side effects
– Snaphot-Rollback for package updates with ZYPP and btrfs
• Improve WebYaST to allow more configuration options
for better remote management and cloud integration
• Automation of SUSE Linux Enterprise 10 to SUSE
Linux Enterprise 11 migration reduces administration
cost and downtime
• Strengthen usability of local administration tools (YaST)
once more and enable it for the SMB market


®

Interoperability Today
• Improved interoperability with next-generation
network filesystem
– NFS v4.1 extends support for file system ACLs and
interoperability to UNIX systems such as Solaris
– IPv6 support in NFS simplifies address assignment and
facilitates wide-area deployments
• Linux Standards Base 4.0 certification
– Interoperability with other Linux distributions


®

Security and Certifications Today
• System architecture with security in mind: customers
are guided to install in a secure way:
– Minimize number of running daemons (services)
– Firewall installed in default pattern
• System is hardened by default, hardening can be
validated and tuned using YaST Security Center
• Built-in audit capabilities: security analysis/compliance
• Security team/response team/code reviews
– Active participation of the Novell SUSE Team: improve overall
®

code quality and security
• Application confinement with AppArmor
– Prevent local and remote attacks
– Improves security also towards external networks
• Check integrity of systems on file level with
Advanced Intrusion Detection Environment (AIDE)

®

Security and Certifications Today
• Help customers improve network security by:
– Using the enhanced authentication capabilities of NFSv4 (Kerberos)
– Installing Virtual Private Networks (VPNs) across architectures and
operating systems without additional software (using openVPN or IPSec)
• Protect systems and data using encryption on several levels:
– “Full Disk” encryption (device mapper layer)
– Volume encryption (device mapper layer)
– Filesystem encryption (eCryptFS)
• Filesystem POSIX capabilities allow administrators to allow
access to files and running executables in a standardized way
• Certifications
– Carrier Grade Linux 4.0 registration: validated for telecommunication
– IPv6 (refresh)
• Trusted Platform Modules (TPM) – Trusted Computing
– provide a cryptographically signed statement about the
state of the system when it has booted

SUSE Linux Enterprise Server 11
®

Security and Certifications Future
• Trusted Execution Technology (TXT)
– Enhances Trusted Computing with processor-based
separation functions on a page-level in memory

– Helps to keep systems in consistent and proven
(“measured”) states

– Works in virtual environments and cloud

– Development with Intel

• Common criteria certification (tentative)


SUSE Linux Enterprise Server for System z

®

10 years on the Mainframe

http://www.novell.com/partners/ibm/mainframe/img/timeline_lores.pdf
The first deployments on Linux for the mainframe were file and print servers.
The first piece of software that became popular was Samba.
The first large commercial customer for SUSE Linux Enterprise Server for S/390
was Telia, the largest telecommunications company in Sweden.
Today, companies are running their mission-critical workloads on top of SUSE
Linux Enterprise Server for System z.

Why Choose SUSE Linux Enterprise ®

Server for System z
• The optimized version of SUSE Linux
Enterprise Server designed to run on
IBM System z mainframes
– Advantages:
> Fully supported by IBM, supports the full benefits of the mainframe (RAS)
> #1 share in the mainframe Linux market (80% share), #1 in the SAP-on-
Linux market (75% share),#1 in High Performance Computing (6 of top 10)
> Five years ahead of competition (first SUSE Linux Enterprise Server for
System z version available back in 2000) – 10 years of expertise
> Ideal for workload consolidation, providing major cost savings
> More than 1,000 certified applications available
> New features specific to System z
> Starter System available for testing and proofs of concept
> High Availability stack included
> Hosting of Subscription Management Tool on System z
> Mono for System z available – migrate .NET workloads

Novell System z – market share
estimate Based on projected IBM IFLs
active
excluding IFL replacements
excluding dormant IFLs
5 year projected IBM IFLs active
define IFL installed base in the
market. 2005-2009
81,9% Novell, new IFL
subscriptions
82,3% total
81.92% RedHat new IFL
subscriptions
total

18.08%

Projected IBM IFLs active total

Novell, new IFL subscriptions total

2005 to 2009

... created by Joerg Eberwein,
GBD-OPS

Version 11 and Service Pack 1
Feature Highlights

SUSE Linux Enterprise Server for System z 11
®

New Features in GA Version
Dynamic add/remove of CPU and memory: resources of a Linux
guest under z/VM can be adjusted while running. A pool of CPUs are
dynamically given to a Linux guest and used as needed

Vertical CPU management: helps get the most performance out of
System z10 servers by being aware of the server's NUMA
characteristics

Linux CPU Node Affinity: improves performance by scheduling
processes to the optimal node where the CPU is associated, exploiting
the new System z10 CPU node topology

Enhanced HiperSocket support: Additional Layer 2 support
for IPV4 and support for IPV6

Modularization of qdio and thin interrupts: Make the thin
interrupt layer independent from qdio and improve the code
layering in the qdio module. This provides for additional
performance enhancements.
20 © Novell, Inc. All rights reserved. = SLES unique feature

®

New Features in GA Version (c´d)
Higher performance analysis in the disk subsystem: gives
performance analysts the same type of view into SCSI over
Fibre Channel Protocol that they have with mainframe Direct
Access Storage Devices (DASD)

Large page support: enables better performance with large
memory footprints like in Java or database workloads by
exploiting new System z10 large memory pages (1MB)

Cross architecture debugging: System z core dumps can be
analyzed on x86 systems, negating the need for a duplicate
System z server


®

New Features in Service Pack 1
Suspend / Resume support: stop a running instance and later
continue operations. A suspended Linux instance does not
require memory or processor cycles. gives you better
performance, resource utilization, and power savings
^^
Automatic IPL after dump: extension to the shutdown action
interface which combines the actions dump and re-ipl, helps
increase availabity and minimize downtime, as well as keep
management and service costs low

DS8000 support- Large volume support architecture: use
use one large volume, instead of multiple small volumes, for
your large amount of data. You no longer need to combine and
manage various small disks anymore. This gives you much
better performance and data consolidation.

Support of HPF TCW command interface in DASD driver
configuration support: lowers overhead of subchannel
operations and increases performance for database serving

®

New Features in Service Pack 1 (c´d)
Next generation crypto HW device driver exploitation: new
System z crypto hardware features and performance
improvements are exploited by SUSE Linux Enterprise Server
for System z. Hardware-driven crypto acceleration functions
help reduce operations and maintenance costs.

AF_IUCV SOCK_SEQPACKET support: improves close
collaboration between SUSE Linux Enterprise Server for
System z and z/VM in the networking area. This provides
better performance for intra machine / VM communication.

TTY terminal server over IUCV: provides central access to
the Linux console for the different guests of a z/VM. Fullscreen
applications like vi are usable on the console.


®

New Features in Service Pack 1 (c´d)
s390-tools enhancements: package with a set of user space
utilities. It is the essential tool chain for Linux on System z and
contains everything from the boot loader to dump-related tools
for a system crash analysis

System z kernel features – message documentation:
Cleanup messages in System z related code, script to
generate a man page for every kernel message

FCP adjustable queue depth: Customizable queue depth for
SCSI commands in zfcp. In the past was at constant 32 queue
entries. Improves performance

Decimal Floating Point library support: libdfp including
require glibc infrastructure for I/O.

Kernel vdso support: speed up gettimeofday, clock_getres
and clock_gettime – more efficient time stamp generation.

Differentiators

Differentiators – Unique Tools

• SLES for System z: enterprise-class and fully
supported operating system tailored for mainframe
available to customers 5 years ahead of competition

• Close partnership between IBM – SAP – Novell
– IBM's System z, SAP's and Novell's Linux core engineering and L3-
support teams are located within a circle of 200km.
– Fastest response and resolution times for any type of support-,
consulting- or Certification-incident.

• Build Service Advantage
– Reduces production problems
– Consolidates IT skills across disparate systems
– Delivers critical updates in hours – not days or weeks


• SUSE Linux Enterprise High Availability Extension
– Delivers all of the essential monitoring, messaging and cluster resource management
functionality of proprietary third-party solutions
• SUSE Linux Enterprise Mono Extension
– Consolidate Windows workloads to System z - use Mono to develop .NET applications
for System z
• AppArmor Linux Application Security Framework
– Easy to use GUI tools with static analysis and learning-based profile development
– Create custom policy in hours, not days
• Package Management Subsystem (ZYpp, ZYpper, libzypp)
• Integrated Systems Management with YaST, AutoYaST, WebYaST
• Subscription Management Tool Hosting on System z
– Local package proxy tightly integrated with NCC included at no cost
– Secure centralized deployment within firewall, reduced bandwidth needs
• Starter System for System z
– Pre-built installation server — facilitates installation of SUSE Linux Enterprise Server
for System z on a z/VM system
– Easily initiate evaluations of SUSE Linux Enterprise Server for System z


High Availability Extension included
SLES 10 SLE HA 11 SLE HA 11 SP1
OCFS2 Metro-Area
Heartbeat
general FS Cluster
Storage Quorum
DRBD 0.7 Unified CLI
Coverage
Samba
Yast2-HB Pacemaker
Cluster
Enhanced
OCFS2 / EVMS2 openAIS
Data Replication
Cluster Config
HA GUI
Synchronization

Yast2-DRBD Node Recovery

Yast2-Multipath Web GUI

Added in Added in
Part of SLES 10
SLE HA 11 SLE HA 11 SP1

Simplified .NET Architecture
SUSE Linux Enterprise Mono Extension
® ®

• The open source implementation of the .NET
application framework that allows you to run .NET-
based applications on SUSE Linux Enterprise Server
Your Application (C#, others)
• Advantages
– Run .NET applications on Linux 1 Class Library
(including ASP.NET)
– Mainframe support for .NET applications Common
– Performance and scalability advantages 2 Language
Runtime
over Windows
– Target Linux from Visual Studio
3 Operating
System

• Develop anywhere – Deploy anywhere
– Includes a toolchain for Linux
– Runtime is binary-compatible with .NET on Windows


30
o
ell

nc

ll

Consolidation of .net workloads ? !
g
ts
es
rv
d
www.redbooks.ibm.com/redbooks/pdfs/sg247727.pdf

Differentiators – Flexible Pricing
Multi-IFL Pricing for SLES for System z

• A Basic Subscription for SUSE Linux Enterprise Server for System z includes
code maintenance, such as patches, ﬁxes and security updates.
• A Priority Subscription for SUSE Linux Enterprise Server includes Basic
Subscription plus 24x7 support services delivered by the Novell Technical
Services.

Competitive Overview In a Nutshell


Resources

• Product webpage
http://www.novell.com/products/server/
• Sales and marketing resource center
https://et.innerweb.novell.com/project_pages/markets/index.jsp
• Customer reference tool
https://innerweb.novell.com/resources/marketing/crs/manage
• SLES FAQ
https://wiki.innerweb.novell.com/index.php/SLE_FAQ
• Product Management
https://wiki.innerweb.novell.com/index.php/OPS_PM


„Social Media“
Webpages:
http://www.novell.com/products/systemz/
http://www.novell.com/partners/ibm/mainframe/

System z blog at:
– http://www.novell.com/communities/coolsolutions/systemz

SLES for System z on Twitter at:
– http://twitter.com/SLE4Systemz

LinkedIn Groups - Novell contributes to
– Linux for System z
> http://www.linkedin.com/groups?gid=2085033&trk=myg_ugrp_ovr

– System z Advocates


– System z Linux



Available Videos
Public Video: Carol Stafford 10 Year Anniversary
Join Carol Stafford, Vice President of IBM System z Sales and Tom
Crabb, Enablement Manager, Novell, as they celebrate and discuss the 10 year
anniversary of Linux on System z and how customers can benefit from running
SUSE Linux Enterprise Server for System z.
http://bit.ly/9mqSdm
Public Video: The IBM and Novell Partnership. Jay Ennesser, Vice President Global
Alliance Solutions, IBM discusses the IBM and Novell Partnership.
http://www.novell.com/media/media.php?media=the-ibm-and-novell-partnership
Public Video Series: Linux for Mainframes
– Part 1: Business Leadership
– Part 2: Mainframes and Server Consolidation
– Part 3: Types of Server Consolidation
– Part 4: Advantages of Linux on Mainframes
– Part 5: More Affordable over Time
– Part 6: Technical Leadership
– Part 7: Mainframe Workloads Best Suited for Consolidation
– Part 8: Lower Total Cost of Ownership
– Part 9: The Hypervisor Defined
– Part 10: More Certified Applications


Current Podcasts
Podcast: Technical Open Audio Session with Richard Lewis
From the Open Audio Booth at BrainShare 2010, The Novell Open Audio
Team sits down with Mike Friesenegger, Novell Pre-Sales Engineer, part of
the Data Center team focusing on SUSE Linux Enterprise Server for System
z, and Richard Lewis from IBM’s Advanced Technical Skills Organization, to
give a technical overview of IBM System z.
http://bit.ly/dyeSKd

Podcast: Open Audio Session with Sirius
A conversation with Erin Quill, Randal Bartsch, and Sales Specialist, Kevin
Gates, discussing Kevin’s success with selling SLES on the Mainframe
http://www.novell.com/feeds/salestalk/?p=748

Podcast: Novell Sales Talk about the value of server consolidation with
an IBM Mainframe
Erin talks to Mike Friesenegger about how customers can benefit from
consolidating physical servers into virtual machines on their mainframe.
http://www.novell.com/feeds/salestalk/?p=667

• MORE TO COME

Articles and PR

• Press Release: Novell Celebrates 10 Years of Market
Leadership with SUSE Linux Enterprise Server for IBM
System z
http://www.novell.com/news/press/novell-celebrates-10-years-of-market-leadership
• Novell’s Markus Rex – celebrating 10 years of Linux on the
mainframe (Interview with Markus Rex, Senior Vice
President and General Manager OPS, Novell)
http://www.linuxuser.co.uk/interviews/novells-markus-rex/
• Novell Connection Magazine Article: A Decade of Linux on
the Mainframe
http://www.novell.com/connectionmagazine/2010/04/sles_on_ibm_mainframe_one
• Novell Connection Magazine Article: SPRAWL KILLER
http://www.novell.com/connectionmagazine/2010/06/sprawl_killer.html


Aberdeen Project - Reports

• False Scarcity: Everything Changes, but Nothing is Lost
http://www.aberdeen.com/link/sponsor.asp?spid=30411851&cid=6614
• Software Group

• The Fable of Mainframe Complexity
• Software Group

• The Green Iron: Mainframes in the Age of Sustainability
• Software Group


Pricing

• Sold as annual support subscriptions – 1 or 3 year
– Zero cost license
– Three subscription levels – Basic, Standard or Priority

Subscription Prices (1 year, VLA) Basic (Maint) Standard (12x5) Priority (24x7)
SUSE Linux Enterprise Server for x86 and x86_64 $349 per server $799 per server $1499 per server

SUSE Linux Enterprise Server for Itanium $750 per socket $850 per socket $1000 per socket

SUSE Linux Enterprise Server for Power $750 per socket $850 per socket $1000 per socket

SUSE Linux Enterprise Server for System z $11,999 per IFL $15,000 per IFL $18,000 per IFL

SUSE Linux Enterprise JeOS $349 per server $799 per server $1499 per server

SUSE Linux Enterprise High Availability Extension
$699 per server (for x86 and x86_64 only)
(x86, x86_64, Itanium, Power, and System z)

SUSE Linux Enterprise Mono Extension (x86, $200 per server (for x86 and x86_64);
x86_64, System z) $7000 per IFL (for System z)

SUSE Linux Enterprise Real Time Extension (x86,
$2500 per server
x86_64)

SUSE Linux Enterprise Virtual Machine Driver Pack
$299 (up to 4 VMs) and $699 per server (unlimited VMs)
(x86, x86_64)


Detailed Features
SLES 11 SP1 for System z

SUSE Linux Enterprise vs Red Hat Enterprise Linux
®

Linux Kernels

•SUSE Linux Enterprise Server 9 (GA 08/2004)
Kernel 2.6.5, GCC 3.3.3, Service Pack 4 (GA 12/2007)

Kernel 2.6.16, GCC 4.1.0, Service Pack 3 (GA 09/2009)

Kernel 2.6.27, GCC 4.3.3,
Service Pack 1 Kernel 2.6.32, GCC 4.3.4 (GA 06/2010)

•Red Hat Enterprise Linux AS 4 (GA 02/2005)
Kernel 2.6.9, GCC 3.4.3, Update 8 (GA 05/2009)

•Red Hat Enterprise Linux AS 5 (GA 03/2007)
Kernel 2.6.18, GCC 4.1.0, Update 4 (GA 09/2009)


FCP – Enhanced Trace Facility
Fate 304023 / [LTC 201542]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.27.html -> zfcp
Device Drivers, Features, and Commands as available with SUSE Linux Enterprise Server 11 p.74

• z IO tracing and performance statistics: allows faster problem
determination in case of issues by providing complete and
meaningful trace information in appropriate levels of detail to make
internal states of operation transparent.

• Customer benefit
technical business
●more detailed information on device ● Faster problem resolution
behaviour in case of malfunction ● Improved support for SLAs

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 yes n/a
SP3 yes n/a U5 yes n/a

FCP – Performance Statistics
Fate 304056 / [LTC 201591]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.27.html -> zfcp

• z IO tracing and performance statistics: instrumentation to trace
and store workload specific SCSI activities and zFCP performance
data of customer systems, also usable for post issue resolution.

technical business
●more detailed information on device ● Faster problem resolution
behaviour in case of performance issues ● Improved support to maintain SLAs
or malfunction

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a

FICON – Hyper PAV enablement
Fate 304066 / [LTC 201000]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.25.html -> HyperPAV
Device Drivers, Features, and Commands as available with SUSE Linux Enterprise Server 11 p.19ff

• z IO feature exploitation: sustained I/O performance improvements
exploiting Parallel Access Volume (PAV) support for disk storage access,
leads to significantly reduced configuration efforts as opposed to static PAV
setups, system will dynamically self optimizing its I/O configuration.


technical business
● Less configuration overhead, better IO ● Improved response times for services
performance, reduced responcse times bound to IO (like databases)
● Improved hardware utilization ● Better storage IO resource exploitation

● Higher VM consolidation ratios

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a
SP4 yes n/a U5 - n/a = SLES unique feature

FICON – Format Record 0 on ECKD devices
Fate 306049 / [LTC 201834]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.29.html(R0) allowedallowed
-> (R0)

• Hardware support: allow the Storage Server to format record 0 on an
ECKD track.

technical business
●Required support for specific storage ●Use of storage units from different
units vendors

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a

DS8000: Large Volume Support
Fate 304026 / [LTC 201597]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.29.html -> EAV

• Hardware exploitation: Implement support for DS8k volumes, which
have more than 64k Cylinders. This comprises especially use of the CCCHR
(vs. CCHHR) addressing scheme and appropriate calculation formulas.


technical business
● Use DASD/ECKD disk bigger than 50GB ● Better performance and data
for large amount of data, not needing to consolidation.
combine various disks

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a

DS8000 Disk Encryption
Fate 307004 / [LTC 201740]
http://www.ibm.com/developerworks/linux/linux390/s390-tools-1.8.1.html -> dasdview

• Hardware support: enhances s390-tools to be able to display if the disk
storage has its disk encrypted or not.


technical business
●Retrieve info on encryption status of ● Secure data storage
device

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a

HiperSockets MAC Layer Routing Support
Fate 302792 / [LTC 200997]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.25.html -> HiperSockets

• Network support: HiperSockets are enhanced to support layer-2
functionality, allowing for more sophisticated network configurattions
like vlan and virtual switches

technical business
● ability to route through an intermediate ●Save on expensive hardware (switches)
virtual switch for layer-2 bridging into ●Agile configuration (change config, do not
external networks. not move hardware and cables)
● More flexible integration into existing IP

networks
SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a

OSA 2 Ports per CHPID support
Fate 302802 / [LTC 201360]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.25.html -> OSA

• Hardware exploitation: Provide exploitation for new OSA 2 port
feature (2 ports per single CHPID) including configuration with yast

technical business
● More network ports per installed card, ● Hardware savings

more network traffice per card, more ● Increased connectivity allowing more per

flexibilty due to increased number of ports host

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 yes n/a

z/VM virtual server integration

AF_IUCV Protocol Support
Fate 302783 / [LTC 200788]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.31.html -> AF_IUCV

• z/VM infrastructure exploitation: Use IUCV-communication
through a socket interface. Improves the close collaboration
between SLES and z/VM in the networking area.

technical - business

 Light weight protocol to connect Reduced protocol overhead allows better
applications in different VMs with high consolidation ratios
bandwidth, low latency
 More choice to connect apps and VMs

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 yes n/a U4 - n/a
54 © Novell, Inc. All rights reserved. Category: z/VM integration

Provide Linux Process Data into z/VM Monitor Stream
Fate 302787 / [LTC 200920]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.x.html -> z/VM

• z/VM infrastructure exploitation: monitor the performance of
SLES or other VM guests with performance monitoring tools on
z/VM or on Linux. Use own, IBM Performance Toolkit for VM, or third
party tools. VMs being monitored require agents that write monitor
data.
technical business
● Health and performance check of ● Keep SLAs, resource utilization control
applications in multiple VMs
● Adapt to our own requirements

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP3 yes n/a U5 (y) n/a = SLES unique feature

Exploitation Of DCSS above 2GB
Fate 304031 / [LTC 201592]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.27.html -> DCSS

• z/VM infrastructure exploitation: ability to have 'objects' residing
in shared memory that are either > 2G in size, or several objects
whose aggregate size is >2G. Requires z/VM 5.4.

technical business
● More capacity and/or flexibility in using ● More efficient resource consumption
shared memory segments among VMs ● Higher consolidation ratios
● Fast process and data access

● Workload separation w/ data sharing

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a
SP3 - n/a U5 - n/a = SLES unique feature

Linux CPU Node Affinity
Fate 302791 / [LTC 200994]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.25.html -> CPU affinity

• Hardware topology exploitation: according to the CPU node
topology (LPAR / z10) optimizes the Linux scheduler to schedule
processes for better cache hit rat

technical business
● Overall performance increase ● More efficient resource utilization
● Higher consolidation ratios

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a

Standby CPU activation / deactivation
Fate 304064 / [LTC 201064]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.25.html -> Standby CPU

• Hardware exploitation and dynamic resource allocation: allows
Linux to make use of standby cpus which are not visible until they
are activated in LPARs and z/VM.

technical business
● Adjust CPU resources to fit application ●Keep SLAs and response times
requirements ●Resource consumption and thus
expenses on demand
●

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a

Dynamic CPU Hotplug Daemon
Fate 302806 / [LTC 201132]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.25.html -> CPU affinity

• Hardware exploitation and dynamic resource allocation: allows
SLES z/VM guest to allocate or free CPU resources depending on
workload base rules

technical business
●Automated and adjustable workload ● Keep SLAs and response times
based management ● Agile resource consumption
● Efficient use and reallocation of existing

resources

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a

System z Vertical CPU Management
Fate 304068 / [LTC 200991]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.25.html -> vertical CPU

• z/VM exploitation and dynamic resource allocation: allows SLES
z/VM guest to switch between different scheduling schemes:
allocate all scheduled time to one CPU, or spread schedule time
between multiple CPU (if present).

technical business
●Some workloads benefit from longer ● Keep SLAs and response times
scheduler time slices, some scale better ● Agile resource governance
with multiple CPUs ● Efficient use and reallocation of existing

resources

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a

Standby Memory Add Via SCLP
Fate 304060 / [LTC 201140]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.27.html -> SCLP
Device Drivers, Features, and Commands as available with SUSE Linux Enterprise Server 11 p.229/259

• z/VM exploitation and dynamic resource allocation: attach and
use standby memory that is configured for a logical partition or z/VM
guest (starting z/VM 5.4)

technical business
●Adjust memory to application or VM ● Improved consolidation ratio
guest specific needs ● Agile resource management
●More efficient use of resources

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a

Dynamic CHPID Reconfiguration Via SCLP
Fate 302797 / [LTC 201020]
http://www.ibm.com/developerworks/linux/linux390/ -> SCLP

• hardware exploitation and dynamic resource allocation: attach,
detach or reconfigure CHPIDs for a logical partition or z/VM guest

technical business
● Adjust IO channel assignment to LPAR ● Agile resource management
or VM guest specific needs
● More efficient use of resources

● IO load balancing

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a

Summary Of IPL related features

• 306082 Provide CMS script for initial IPL under z/VM

• 306044 Shutdown actions interface (userspace)

• 306072 Shutdown actions interface (kernel)

• 306081 Shutdown actions tools

• 306048 Large image dump on DASD

• 306062 Extra kernel parameter via VMPARM

SLES 10 11 RHEL 5 6
GA - - GA - (y)
SP1 - ? U1+2+3 - n/a
SP2 - n/a U4 ? n/a
SP3 ? n/a U5 ? n/a

Diagnostics and trouble shooting

Provide service levels of HW and Hypervisor in Linux
Fate 307008 / [LTC 201xxx]
http://www.ibm.com/xxx

• Identify hardware and MLC levels: admin can query machine
name, MCL level, zVM machine data and version information from a
Linux guest

technical business
● Query machine a software information ● Keep SLAs by faster problem resolution
● Faster error isolation and issue

resolution

SLES 10 11 RHEL 5 6
GA - - GA - (y)
SP1 - yes U1+2+3 - n/a

Kernel Message Catalog Autogeneration
Fate 306999 / [LTC 201727]
http://www.ibm.com/developerworks/linux/linux390/kernel-2.6.29.html#message-catalog
Kernel Messages (lk32km00.pdf)

• Additional documentation and improved problem resolution:
the kernel components are instrumented in a way that a message
catalog as well as related man pages are automatically generated
and can be retrieved by the administrator.

technical business
● Documentation of kernel related ● Keep SLAs by faster problem resolution
messages
● Faster error isolation and issue

resolution

SLES 10 11 RHEL 5 6
GA - yes GA - (-)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a

TTY terminal server over IUCV
Fate 302001 / [LTC 201734]
http://www.ibm.com/developerworks/linux/linux390/s390-tools-1.8.1.html -> iucvterm

• Terminal access without IP: Implement client & server for a TTY
terminal server under z/VM using IUCV as communication vehicle.


 Optional full terminal to access a guest  Easy of use
even if TCP/IP stack is down
 Alternative to x3270 line based console

access

SLES 10 11 RHEL 5 6
GA - yes GA - (y)
SP1 - yes U1+2+3 - n/a
71 © Novell, Inc. All rights reserved. Category: s390 tools

Support Decimal Floating Point Library
Fate 307062 / [LTC 201933]
http://www.ibm.com/developerworks/linux/linux390/toolchain.html -> decimal floating

• Decimal flointing point hardware exploitation: Most financial
transactions require decimal computation. Supporting the emerging
standard for Decimal Floating Point.


Faster business related math operations  Offloads processor from software
due to hardware acceleration emulation for the benefit of other
workloads

SLES 10 11 RHEL 5 6 Category: toolchain
GA - - GA - (y)
SP1 - yes U1+2+3 - n/a
SP2 - n/a U4 - n/a

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