IBM z/OS Linux Distribution Partners, VM Version 4 and Version, Integrated Facility for Linux IFL

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Linux Distribution Partners

•SUSE LINUX

Product Information at suse.de/en/produkte/susesoft/S390/

•Turbolinux

Product Information at turbolinux.com/products/s390

•Red Hat Linux

Product Information at redhat.com/software/S390

z/VM Version 4 and Version 5

z/VM supports Linux on the mainframe. Within the VM environment, Linux images benefi t from the ability to share hardware and software resources and use internal high-speed communications. While benefi ting from the reliability, availability and serviceability of IBM ^ zSeries servers, both z/VM V4 and V5 offer an ideal plat- form for consolidating Linux workloads on a single physi- cal server which allows you to run tens to hundreds of Linux images. z/VM V4 is priced on a per-engine basis (one-time charge) and supports IBM Integrated Facility for Linux (IFL) processor features for Linux based workloads, as well as standard engines for all other zSeries and S/390 workloads. Engine-based Value Unit pricing for z/VM V5.1 is replacing the pricing model available with z/VM V4. Engine-based Value Unit pricing is designed to provide a lower entry point and a decreasing price curve which will help provide improved price/performance as hardware capacities and workload grow. Value Unit pricing helps you to add capacity and workload with an incremental and improved price and the ability to aggregate licenses acquired across machines that are part of your enterprise.

Integrated Facility for Linux (IFL)

The Integrated Facility for Linux feature of the zSeries serv- ers provides a way to add processing capacity, exclusively for Linux workloads, with minimal effect on the model des- ignation. Operating systems like z/OS, TPF, and VSE/ESA will not execute on Integrated Facility for Linux engines. Consequently, these engines will not necessarily affect the software charges for workload running on the other engines in the system.

OSA-Express Ethernet for Linux

Driver support is provided for the functions of the new OSA-Express Gigabit Ethernet and 1000BASE-T Ethernet features.

OSA-Express Enhancements for Linux

A new function, Checksum Offl oad, offered for the new OSA-Express GbE and 1000BASE-T Ethernet features, is available for the Linux on zSeries and z/OS environ- ments. Checksum Offl oad provides the capability of calculating the Transmission Control Protocol (TCP), User Datagram Protocol (UDP), and Internet Protocol (IP) header checksums. Checksum verifi es the correctness of

files. By moving the checksum calculations to a Gigabit or 1000BASE-T Ethernet feature, host CPU cycles are reduced and performance is improved. When checksum is offl oaded, the OSA-Express feature performs the check- sum calculations for Internet Protocol Version 4 (IPv4) packets.

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Contents IBM zSeries 990 and z/OS Reference Guide Table of Contents ZSeries Overview What does an on demand company look like?To huge increases in user activity Tools for Managing e-businessArchitecture Architecture Operating System SupportIBM zSeries TionBase Ratio Z990 Design and Technology MultiChip Module is the technology cornerstone for Z990 Family Models Z990 ModelsZ990 and IBM On/Off Capacity on Demand Model Upgrades Z990 and z900 Performance Comparison Z990 I/O SubSystem Z990 Cage LayoutGreater than 15 Logical Partitions LP Physical Channel IDs PCHIDs SubSystemZ990 Channels and I/O Connectivity Logical Channel SubSystem Lcss SpanningIC Channel Spanning Up to 1024 Escon ChannelsInterSystem Channel-3 ISC-3 Integrated Cluster Bus-2 ICB-2Integrated Cluster Bus-3 ICB-3 Integrated Cluster Bus-4 ICB-4Ficon Express Channel Card Features Fibre Channel ConnectivityPerformance Flexibility Three channel types supportedShared infrastructure Native Ficon ChannelsFicon Connectivity Ficon CTC functionFicon Support for Cascaded Directors Ficon Bridge Channel FCP ChannelsOpen Systems Adapter-Express Features OSA-Express FCP Full fabric connectivityZ990 OSA-Express 1000BASE-T Ethernet OSA-Express Integrated Console ControllerQueued Direct Input/Output Qdio Z990 OSA-Express Gigabit EthernetNON-QDIO operational mode Z990 OSA-Express Token-RingServer to User connections Lpar Support of OSA-Express IPv6 SupportPerformance enhancements for virtual servers HiperSockets LCSS0 LCSS1HiperSockets Network Concentrator Cryptography Z990 Capacity Upgrade on Demand CUoD AvailabilityZSeries Security Certification Cryptography Plan Ahead and Concurrent ConditioningZ990 Server Capacity BackUp CBU Z990 Server Customer Initiated Upgrade CIU Concurrent MaintenanceAdvanced Availability Functions Transparent SparingConcurrent Capacity Backup Downgrade CBU Undo Concurrent Memory UpgradeParallel Sysplex Cluster Technology Coupling Facility Configuration Alternatives System-Managed CF Structure Duplexing Parallel Sysplex Coupling Connectivity Z990 Theoretical Maximum Coupling Link Speed OptionsIntelligent Resource Director IRD ScopeLpar CPU Management Dynamic Channel Path ManagementChannel Subsystem Priority Queuing Page Geographically Dispersed Parallel Sysplex HyperSwap Geographically Dispersed Parallel Sysplex Gdps Enhancements Page Page Parallel Sysplex FacilitiesNo single point of failure Components and assumptionsZ990 Support for Linux Linux on zSeriesIBM Middleware Tivoli Access Manager for Operating Systems Version Linux Distribution Partners VM Version 4 and VersionIntegrated Facility for Linux IFL OSA-Express Ethernet for LinuxHiperSockets Fibre Channel Protocol FCP channel Support for LinuxZSeries 990 Family Configuration Detail Cryptographic Support for LinuxLinux Support Cryptographic Features OSA-Express FeaturesProcessor Unit Assignments Processor MemoryZ990 Frame and I/O Configuration Content Planning for I/O General InformationPhysical Characteristics Z990 Power/Heating/Cooling System Power Consumption kWZ990 Dimensions System Cooling Air Flow Rate CFMCoupling Facility CF Level of Support Fiber-Optic Cabling and System ConnectivityFiber-optic jumper cabling package Integrated system services OS.e ZSeries Application Assist ProcessorOS Scalability Bit SupportAutomation Support System Services Sense and Respond with Workload ManagerWLM Improvements for WebSphere Data Management with DfsmsCICS/VSAM enabled for 24x7 availability System Management ServicesJES2 and JES3 Console Enhancements EnhancementsSecurity Services Advanced System AutomationRacf enhancements Multilevel SecurityLdap PKI Services FirewallNetwork Authentication Service Application Enablement ServicesLanguage Environment Java UnicodeCommunication Services Rexx FunctionsDynamic Virtual IP Address Takeover Sysplex DistributorIntrusion Detection Services IDS HiperSocketsOS Unix HighlightsUnix System Services benefits can include Distributed Computing ServicesZSeries File System zFS Distributed File Services DFS Server Message Block Internet ServicesPrint Services Infoprint CentralIntegrated Testing Softcopy Publications SupportLibrary Center PublicationsInstallation Considerations OS 1.4 and 1.5 are supported on the following IBM serversOS 1.6 is supported on the following IBM servers Migration/CoexistenceMigration, installation and customization Enhancements ZSeries Bimodal Support for z/OSWizards Order z/OS through the InternetVM Version 3 VM Version 4 Exploiting New Technology Systems Management Application Enablement Networking with z/VMPage VM Version 5 Engine-based Value Unit PricingEnhancements in z/VM V5.1 include Network Virtualization and Security Technology ExploitationSystems Management Improvements To learn more
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