IBM z/OS manual Application Enablement, Networking with z/VM

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–post-processing of Performance Toolkit for VM history fi les and of VM monitor data captured by the MON- WRITE utility

–viewing of performance monitor data using either Web browsers or PC-based 3270 emulator graphics

The toolkit also provides the capability to monitor TCP/IP for z/VM, as well as to process Linux performance data.

Application Enablement

CMS will host the new C/C++ for z/VM compiler (5654-A22). This environment allows C/C++ programs to be compiled and executed on CMS and creates portability between z/VM and z/OS C/C++ programs. C/C++ source files can be read from a CMS minidisk, the SFS, or the Byte File System (BFS) and output can be written to any of these fi le systems. C/C++ will only execute on z/VM V4.4 and can only be licensed to operate on standard processor engines. In order to support the C/C++ for z/VM compiler, the C/C++, the Language Environment has been updated to the level shipped with z/OS V1.4 and is integrated into the base of z/VM V4.4.

Networking with z/VM

TCP/IP for z/VM delivers expanded Internet/intranet access, improved e-business performance and extended function. Performance of the TCP/IP stack was enhanced by redesigning algorithms to reduce path lengths, recod- ing procedures to optimize high-use paths, identifying and implementing performance improvement items, and adding virtual multiprocessing capabilities.

TCP/IP is designed to support the z/Architecture HiperSockets function for high-speed communication among virtual machines and logical partitions within the

same zSeries server. The HiperSockets function allows vir- tual machines and logical partitions to communicate inter- nally over the memory bus using the internal-queued-direct (IQD) channel type in the z990, z890, z900, and z800. TCP/ IP broadcast support is now available for the HiperSockets environment when utilizing Internet Protocol version 4 (IPv4) with z/VM V4.4. Applications that use the broadcast function can now propagate frames to all TCP/IP applications.

The z890 and z990 servers include an important perfor- mance enhancement that virtualizes adapter interruptions and can be used with V=V guests (pageable guests) on z/VM V4.4. With the enhancement of the TCP/IP stack in z/VM V4.4 to use adapter interruptions for OSA-Express, TCP/IP for VM can benefi t from this performance assist for both HiperSockets and OSA-Express adapters.

z/VM V4.4 exploits the Virtual Local Area Network (VLAN) technology. VLANs ease the administration of logical groups of users so that they can communicate as if they were on the same physical LAN. VLANs help increase traffi c fl ow and may help reduce overhead to allow the organization of networks by traffi c patterns rather than by physical location. To support VLAN, z/VM V4.4 provides:

•Enhancements to TCP/IP for z/VM to enable member- ship in a VLAN for QDIO and HiperSockets adapters

•Enhancements to z/VM guest-LAN simulation to allow virtual QDIO and HiperSockets adapters to participate in a VLAN

•Management and control of VLAN topology by the z/VM virtual switch

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Contents IBM zSeries 990 and z/OS Reference Guide Table of Contents What does an on demand company look like? ZSeries OverviewTools for Managing e-business To huge increases in user activityArchitecture Operating System Support ArchitectureTion IBM zSeriesBase Ratio Z990 Design and Technology MultiChip Module is the technology cornerstone for Z990 and IBM On/Off Capacity on Demand Z990 Family ModelsZ990 Models Model Upgrades Z990 and z900 Performance Comparison Z990 Cage Layout Z990 I/O SubSystemPhysical Channel IDs PCHIDs SubSystem Greater than 15 Logical Partitions LPUp to 1024 Escon Channels Z990 Channels and I/O ConnectivityLogical Channel SubSystem Lcss Spanning IC Channel SpanningIntegrated Cluster Bus-4 ICB-4 InterSystem Channel-3 ISC-3Integrated Cluster Bus-2 ICB-2 Integrated Cluster Bus-3 ICB-3Flexibility Three channel types supported Ficon Express Channel Card FeaturesFibre Channel Connectivity PerformanceNative Ficon Channels Shared infrastructureFicon Support for Cascaded Directors Ficon ConnectivityFicon CTC function FCP Channels Ficon Bridge ChannelFCP Full fabric connectivity Open Systems Adapter-Express Features OSA-ExpressOSA-Express Integrated Console Controller Z990 OSA-Express 1000BASE-T EthernetZ990 OSA-Express Gigabit Ethernet Queued Direct Input/Output QdioServer to User connections NON-QDIO operational modeZ990 OSA-Express Token-Ring Performance enhancements for virtual servers Lpar Support of OSA-ExpressIPv6 Support LCSS0 LCSS1 HiperSocketsHiperSockets Network Concentrator Cryptography Plan Ahead and Concurrent Conditioning Z990 Capacity Upgrade on Demand CUoDAvailability ZSeries Security Certification CryptographyZ990 Server Capacity BackUp CBU Transparent Sparing Z990 Server Customer Initiated Upgrade CIUConcurrent Maintenance Advanced Availability FunctionsParallel Sysplex Cluster Technology Concurrent Capacity Backup Downgrade CBU UndoConcurrent Memory Upgrade Coupling Facility Configuration Alternatives System-Managed CF Structure Duplexing Parallel Sysplex Coupling Connectivity Options Z990 Theoretical Maximum Coupling Link SpeedIRD Scope Intelligent Resource DirectorChannel Subsystem Priority Queuing Lpar CPU ManagementDynamic Channel Path Management Page Geographically Dispersed Parallel Sysplex HyperSwap Geographically Dispersed Parallel Sysplex Gdps Enhancements Page Page Facilities Parallel SysplexComponents and assumptions No single point of failureIBM Middleware Z990 Support for LinuxLinux on zSeries Tivoli Access Manager for Operating Systems Version OSA-Express Ethernet for Linux Linux Distribution PartnersVM Version 4 and Version Integrated Facility for Linux IFLFibre Channel Protocol FCP channel Support for Linux HiperSocketsLinux Support ZSeries 990 Family Configuration DetailCryptographic Support for Linux Processor Memory Cryptographic FeaturesOSA-Express Features Processor Unit AssignmentsGeneral Information Z990 Frame and I/O Configuration Content Planning for I/OSystem Cooling Air Flow Rate CFM Physical CharacteristicsZ990 Power/Heating/Cooling System Power Consumption kW Z990 DimensionsFiber-Optic Cabling and System Connectivity Coupling Facility CF Level of SupportFiber-optic jumper cabling package Integrated system services ZSeries Application Assist Processor OS.eAutomation Support OS ScalabilityBit Support Sense and Respond with Workload Manager System ServicesData Management with Dfsms WLM Improvements for WebSphereJES2 and JES3 CICS/VSAM enabled for 24x7 availabilitySystem Management Services Enhancements Console EnhancementsAdvanced System Automation Security ServicesMultilevel Security Racf enhancementsLdap Firewall PKI ServicesLanguage Environment Network Authentication ServiceApplication Enablement Services Unicode JavaSysplex Distributor Communication ServicesRexx Functions Dynamic Virtual IP Address TakeoverHiperSockets Intrusion Detection Services IDSHighlights OS UnixZSeries File System zFS Unix System Services benefits can includeDistributed Computing Services Internet Services Distributed File Services DFS Server Message BlockInfoprint Central Print ServicesPublications Integrated TestingSoftcopy Publications Support Library CenterMigration/Coexistence Installation ConsiderationsOS 1.4 and 1.5 are supported on the following IBM servers OS 1.6 is supported on the following IBM serversZSeries Bimodal Support for z/OS Migration, installation and customization EnhancementsOrder z/OS through the Internet WizardsVM Version 3 VM Version 4 Exploiting New Technology Systems Management Networking with z/VM Application EnablementPage Enhancements in z/VM V5.1 include VM Version 5Engine-based Value Unit Pricing Technology Exploitation Network Virtualization and SecuritySystems Management Improvements To learn more
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