IBM ^ zSeries 990 and z/OS Reference Guide August 2004
Table of Contents z/Architecture page 5 IBM ~ zSeries 990 page 6 z990 Family Models page 10 z990 and z900 Performance Comparison page 12 z990 I/O SubSystem page 13 z990 Channels and I/O Connectivity page 15 Fibre Channel Connectivity page 17 Open Systems Adapter-Express Features (OSA-Express) page 21 HiperSockets page 26 Cryptography page 28 Availability page 29 Advanced Availability Functions page 31 Parallel Sysplex Cluster Technology page 32 z990 Support for Linux page 46 zSe
• Resilient: It can handle the ups and downs of the global zSeries Overview market, and manage changes and threats with consis- Technology has always accelerated the pace of change. New technologies enable new ways of doing business, tent availability, security and privacy – around the world, shifting markets, changing customer expectations, and around the clock. redefining business models.
The variable data center needs to be able to respond to The New zSeries from IBM – Impressive Investment - the ever-changing demands that occur when you sup- Unprecedented Performance port multiple diverse workloads as a single entity. It must IBM’s ongoing investment in zSeries technology has pro- respond to maintain the quality of service required and duced a re-invention of the zSeries server — the z990.
z/Architecture • 64-bit operands and general registers are used for all The zSeries is based on the z/Architecture™, which is Cryptographic instructions designed to reduce bottlenecks associated with the lack • The implementation of 64-bit z/Architecture can help of addressable memory and automatically directs resources reduce problems associated with lack of addressable to priority work through Intelligent Resource Director.
IBM ^ zSeries 990 IBM ^ zSeries is the enterprise class e-business Operating System ESA/390 z/Arch (31-bit) (64-bit) Compati Exploita bility tion server optimized for the integration, transactions and data OS/390 Version 2 Release 10 Yes Yes Yes No of the next generation e-business world.
The new IBM ^ zSeries Application Assist tures and improve operational efficiencies.
To support the new scalability of the z990 a new improve- smaller than the z900), contains the processor unit (PU) ment to the I/O Subsystem has been introduced to “break chips, the cache structure chips and the processor stor- the barrier” of 256 channels per Central Electronic Com- age controller chips. The MCM contains 101 glass ceramic plex (CEC).
Each book can support up to 64 GB of Memory, delivered In order to support the highly scalable multi-book system on two memory cards, and 12 STIs giving a total of 256 GB design the I/O SubSystem has been enhanced by intro- of memory and 48 STIs on the D32 model. The memory is ducing a new Logical Channel SubSystem (LCSS) which delivered on 8 GB, 16 GB or 32 GB memory cards which provides the capability to install up to 1024 CHPIDs across can be purchased in 8 GB increments.
z990 Family Models z990 Models The z990 offers 4 models, the A08, B16, C24 and D32, which can be configured to give customers a highly scalable solution to meet the needs of both high transaction processing applications and the demands of e-business. The new model structure provides between 1-32 configurable Processor Units (PUs) which can be characterized as either CPs, IFLs, ICFs, or zAAPs.
Although CBU and On/Off Capacity on Demand can both and up to 360 ESCON channels. Each book will support reside on the server, the activation of On/Off Capacity up to 12 STIs for I/O connectivity. Seven STIs are required on Demand is mutually exclusive with Capacity BackUp to support the 28 channel slots in each I/O cage so in (CBU) and no physical hardware upgrade will be sup- order to support a fully configured three I/O cage system ported while On/Off Capacity on Demand is active.
z990 and z900 Performance Comparison The performance design of the z/Architecture enables the It is also important to notice that the LSPR workloads for entire server to support a new standard of performance for z990 have been updated to reflect more closely our cus- applications through expanding upon a balanced system tomers’ current and growth workloads. The traditional TSO approach.
z990 I/O SubSystem • Comparing a 16-way z900 Model 216 to a z990 model The z990 contains an I/O subsystem infrastructure which with sixteen CPs enabled, it is estimated that the z990 uses an I/O cage that provides 28 I/O slots and the abil- model has 1.45 to 1.53 times the capacity of the 216. ity to have one to three I/O cages delivering a total of 84 • Comparing a 16-way z900 Model 216 to a z990 model I/O slots.
z990 Logical Channel SubSystems (LCSSs) and support for Physical Channel IDs (PCHIDs) SubSystem greater than 15 Logical Partitions (LP) In order to accommodate the new support for up to 1024 In order to provide the increased channel connectivity CHPIDs introduced with the Logical Channel SubSystem required to support the scalability of the z990, the z990 (LCSS) a new Physical Channel ID (PCHID) is being intro- channel I/O SubSystem delivers a breakthrough in con- duced.
z990 Channels and I/O Connectivity Logical Channel SubSystem (LCSS) Spanning A z990 with all three I/O cages installed has a total of 84 The concept of spanning channels provides the ability for I/O slots. These slots can be plugged with a mixture of fea- a channel to be configured to multiple LCSSs and therefore tures providing the I/O connectivity, networking connectiv- they may be transparently shared by any/all of the logical ity, coupling and cryptographic capability of the server.
channels are enabled on these existing features via a Integrated Cluster Bus-3 (ICB-3) License Internal Code (LIC) with a new mode of operation The ICB-3 feature is a coupling link used to provide high- and new CHPID definition. FCP is available in long wave- speed communication between a z990 Server and a z900 length (LX) and short wavelength (SX) features, though General Purpose Server or Model 100 Coupling Facility the LX and SX cannot be intermixed on a single feature.
Fibre Channel Connectivity The on demand operating environment requires fast data hardware or code is needed in order to obtain 2 Gbps access, continuous data availability, and improved flex- links. The functionality was incorporated in all zSeries ibility all with lower cost of ownership. The new increased with March 2002 LIC. The link data rate is auto-negotiated number of FICON Express features available on the z990 between server and devices.
links defined on the FICON Express SX channel cards are wavelength or FC 3032 for short wavelength on the F10/ up to 500 meters (1,640 feet) and 250 meters (820 feet) F20, or FC 3024 for long wavelength and 3025 for short for 50 and 62.5 micron multimode fiber, respectively. The wavelength on the 800. All three models can support up maximum unrepeated distances for 2 Gbps links defined to 16 FICON ports per ESS. The Model 800 is 2 Gb link on the FICON Express SX channel cards are up to 300 capable.
FICON Connectivity Wave Division Multiplexor and Optical Amplifiers that support 2 Gbps FICON Express links are: Cisco Systems ONS FICON Bridge 15530 and 15540 ESP (LX, SX) and optical amplifier (LX, SX), Nortel Networks Optera Metro 5100, 5200 and 5300E ESCON CU ESCD 9032 Model 5 and optical amplifier, ADVA Fiber Service Platform (FSP) ESCON CU 2000 system and the IBM 2029 Fiber Saver.
FICON cascaded directors have the added value of high FCP Channels integrity connectivity. New integrity features introduced zSeries supports FCP channels, switches and FCP/SCSI within the FICON Express channel and the FICON cas- disks with full fabric connectivity under Linux on zSeries caded switch fabric to aid in the detection and reporting and z/VM Version 4 Release 3 and later for Linux as a of any miscabling actions occurring within the fabric can guest under z/VM.
Open Systems Adapter-Express Features (OSA-Express) FCP Full fabric connectivity With the introduction of the z990, its increased process- FCP full fabric support means that any number of (single ing capacity, and the availability of Logical Channel vendor) FCP directors/ switches can be placed between SubSystems, the OSA-Express Adapter family of Local the server and FCP/ SCSI device, thereby allowing many Area Network (LAN) features is also expanding by offer- “hops” through a storage network for
z990 OSA-Express 1000BASE-T Ethernet OSA-Express Integrated Console Controller The new OSA-Express 1000BASE-T Ethernet feature The new Open Systems Adapter-Express Integrated Con- replaces the current Fast Ethernet (10/100 Mbps) feature.
Queued Direct Input/Output (QDIO) z990 OSA-Express Gigabit Ethernet The OSA-Express Gigabit Ethernet, 1000BASE-T Ethernet The new z990 OSA-Express Gigabit Ethernet LX and Giga- and Token-Ring features support QDIO (CHPID type OSD), bit Ethernet SX features replace the z900 Gigabit Ethernet which is unique to IBM. QDIO was first introduced to the features for new build z990. The new OSA-Express GbE world on the z900, in Communication Server for OS/390 2.7.
NON-QDIO operational mode non-QDIO mode SNA Passthru TCP/IP Passthru HPDT MPC The OSA-Express 1000BASE-T Ethernet, Fast Ethernet and Token-Ring also support the non-QDIO mode of QDIO Mode - TCP/IP 4/16 Mbps Token-Ring operation (CHPID type OSE). The adapter can only be set (via the CHPID type parameter) to one mode at a time. Server Switch/ Hub/ Router Server 100 Mbps Token-Ring Backbone The non-QDIO mode does not provide the benefits of Switch/ Hub/ Router QDIO.
LPAR Support of OSA-Express more efficient technique for I/O interruptions designed For z990 customers or customers who use the Processor to reduce path lengths and overhead in both the host Resource/Systems Manager (PR/SM) capabilities IBM operating system and in the adapter. This benefits OSA- offers the Multiple Image Facility (MIF), allowing the shar- Express TCP/IP support in both Linux for zSeries and ing of physical channels by any number of LPARs. Since z/VM.
HiperSockets HiperSockets, a function unique to the zSeries, provides z/VM a “TCP/IP network in the server” that allows high-speed LPAR 1 z/OS Linux z/VM Linux Linux LPAR 14 LPAR 15 LPAR 17 LPAR 18 LPAR 30 any-to-any connectivity among virtual servers (TCP/IP images) and LPARs within a zSeries system without any LCSS0 LCSS1 physical cabling.
This support gives the user the flexibility to optimize and network is organized by traffic patterns rather than physi- tune each HiperSockets to the predominant traffic profile, cal location. This enhancement permits traffic to flow on a for example to distinguish between “high bandwidth” VLAN connection between applications over HiperSockets workloads such as FTP versus lower bandwidth interactive and between applications on HiperSockets connecting to workloads.
Cryptography In the on demand era security will be a strong requirement. graphic functions which were provided on the zSeries 900 The zSeries products will continue to address security with via the CMOS Cryptographic Coprocessor (CCF) and the announcements and deliveries of products and features. PCI Cryptographic Coprocessor (PCICC).
Availability a method for key identification, exchange, separation, z990 Capacity Upgrade on Demand (CUoD) update, backup, and management. The TKE worksta- Capacity Upgrade on Demand allows for the nondisruptive tion and 4.0 code level are designed to provide a secure, addition of one or more Central Processors (CPs), Inter- remote, and flexible method of providing Master Key Entry nal Coupling Facilities (ICFs), Integrated Facility for Linux and to remotely manage PCIX Cryptographic Coprocessors.
The z990 supports concurrent memory upgrade. This capa- The z990 technology is suited for providing capacity bility will allow a processor’s memory to be increased with- backup. The reserved CBU processing units are on the out disrupting the processor operation. To take advantage same technology building block, the MCM, as the regular of this capability, a customer should not plan processor CPs. Therefore, a single server can support two diverse storage on the 16 or 32 GB increments.
Advanced Availability Functions the processors in the takeover site to acquire processing Transparent Sparing power required to restart mission-critical production work- z990 offers a 12 PU MCM with 2 PUs reserved as spares. loads. GDPS-CBU management helps to minimize manual In the case of processor failure, these spares are used for customer intervention and the potential for errors, which transparent sparing. can help reduce the outage time for critical workloads from hours to minutes.
Parallel Sysplex Cluster Technology • Cryptographic Cards: The PCIXCC and PCICA cards Parallel Sysplex clustering was designed to bring the plug in the I/O cage and can be added or replaced con- power of parallel processing to business-critical zSeries currently with system operation. and S/390 applications.
• Internal Coupling Facility (ICF): Customers consider- Although there is a significant value in a single footprint ing clustering technology can get started with Parallel and multi-footprint environment with resource sharing, those customers looking for high availability must move Sysplex technology at a lower cost by using an ICF on to a database data sharing configuration. With the instead of purchasing a standalone Coupling Facility.
• Dynamic ICF Expansion: Dynamic ICF expansion pro- Benefits of System-Managed CF Structure Duplexing vides value by providing extra CF capacity when there include: are unexpected peaks in the workload or in case of loss • Availability of CF capacity in the cluster. Faster recovery of structures by having the data already – ICF Expansion into shared CPs.
Customers who are interested in testing and/or deploy- between z/OS (or OS/390) and CF LPARs. The peer link ing System-Managed CF Structure Duplexing in their acts simultaneously as both a CF Sender and CF Receiver sysplex should review GM13-0103, System-Managed CF link, reducing the number of links required. Larger and Structure Duplexing at ibm.com/server/eserver/zseries/ more data buffers and improved protocols also improve pso or ibm.
• ISC-3. InterSystem Channel-3 provides the connectivity the options to be considered is locating one of the Sysplex Timers in an intermediary site that is less than 40 km required for resource or data sharing between the Cou- from one of the two sites (as can be seen in the diagram pling Facility and the systems directly attached to it. below). Other potential options can be evaluated when the ISC-3s are point-to-point connections that require a RPQ is ordered.
Intelligent Resource Director • ICB-3. The Integrated Cluster Bus-3 is used to provide high-speed coupling communication between a z990 Exclusive to IBM’s z/Architecture is Intelligent Resource server or CF and a z800/z900 server or CF or between Director (IRD), a function that optimizes processor and two z800/z900s over short distances (~7 meters). For channel resource utilization across Logical Partitions longer distances, ISC-3 links must be used. The z990 (LPARs) based on workload priorities.
LPAR CPU Management units, DCM will unassign them from lesser utilized control LPAR CPU Management allows WLM working in goal units and assign them to what are now the more heavily mode to manage the processor weighting and logical used ones. DCM is for ESCON and FICON Bridge chan- processors across an LPAR cluster. CPU resources are nels and can help reduce the number of channels required automatically moved toward LPARs with the greatest need to effectively run a workload.
On a z990, the scope of Channel Subsystem I/O Priority hardware solution that is designed to synchronously mirror Queuing is a Logical Channel SubSystem. data residing on a set of disk volumes, called the primary volumes in site 1, to secondary disk volumes on a second Channel Subsystem Priority Queuing complements the system in site 2.
On the other hand, the GDPS solution based on Extended Geographically Dispersed Parallel Sysplex HyperSwap™ Remote Copy (XRC), referred to as GDPS/XRC, has the The GDPS/PPRC HyperSwap function is designed to attributes of a Disaster Recovery solution. XRC is a com- broaden the continuous availability attributes of GDPS/ bined hardware and software asynchronous remote copy PPRC by extending the Parallel Sysplex redundancy to solution. The application I/O is signaled completed when disk subsystems.
unplanned HyperSwap capability lays the foundation for Planned HyperSwap function provides the ability to: continuous availability, even in the event of a complete • Transparently switch all primary PPRC disk subsystems site failure.
GDPS/PPRC management for open systems LUNs (Logi- LSS within the disk subsystem. Since this constraint has cal Unit Numbers): GDPS/PPRC technology has been been removed with FlashCopy V2, GDPS can now allow a extended to manage a heterogeneous environment of FlashCopy from a source in one LSS to a target in a differ- z/OS and open systems data. If installations share their ent LSS within the same disk subsystem.
• Coordinated planned and unplanned HyperSwap of of Sysplex Timers in an Expanded Availability configuration remains at 40 km (25 miles).
Automatic Enablement of CBU for Geographically Dispersed z900 Models 2C1 through 216, the Coupling Facility will Parallel Sysplex require connectivity to the same 9037 Sysplex Timer that The intent of the GDPS (CBU) is to enable automatic man- the systems in its Parallel Sysplex cluster are using for agement of the reserved PUs provided by the CBU feature time synchronization. If the ICF is on the same server as a in the event of a processor failure and/or a site failure.
Continuous Availability Recommended Configuration for Key attributes can include Parallel Sysplex • No single point of failure • Fast, automatic recovery Dedicated (External) Coupling Facility – CF: rebuild in surviving CF z990 with CFs only z900 Model 100 9674, 9672 R06, or z800 Model 0CF image – TM/DBMS: restart in place Internal Coupling Facility IC z/OS – CEC, z/OS, OS/390: restart subsystems on surviving • Surviving components absorb new work z/OS ICF • No service loss for planned or unpla
z990 Support for Linux Linux on zSeries The support is implemented using an internal communi- Linux and zSeries are a great team. Linux has the same cations method — SCLP — which enables the operat- appearance and application programming interfaces no ing system to communicate with the HMC. The software matter what platform it is running on, since it is designed to support was made available in z/VM Version 4 Release 4. be platform-independent.
– WebSphere Application Server Advanced Edition – Tivoli Configuration Manager Version 4.2 Version 3.5 – Tivoli Decision Support for OS/390 Version 1.5.1 – WebSphere Commerce Business Edition Version 5.4 – Tivoli Distributed Monitoring Version 4.1 – WebSphere Host On-Demand Version 7.0 and 6.0 – Tivoli Enterprise Console Version 3.8 and 3.7.1 – WebSphere MQ Everyplace Version 2.0 and 1.2 – Tivoli Identity Manager Version 1.1 – WebSphere MQ Version 5.
Linux Distribution Partners Integrated Facility for Linux (IFL) • SUSE LINUX The Integrated Facility for Linux feature of the zSeries serv- Product Information at suse.de/en/produkte/susesoft/S390/ ers provides a way to add processing capacity, exclusively • Turbolinux for Linux workloads, with minimal effect on the model designation. Operating systems like z/OS, TPF, and VSE/ESA Product Information at turbolinux.com/products/s390 will not execute on Integrated Facility for Linux engines.
Two important networking technology advancements are Internet Protocol Version 4 (IPv4) broadcast packets announced in z/VM 4.4 and Linux on z990: are now supported over HiperSockets.
zSeries 990 Family Configuration Detail Cryptographic Support for Linux Maximum of 1024 CHPIDs; 3 I/O cages Linux on zSeries running on standard z990, z900, and (28 slots each) = 84 I/O slots. z800 engines is capable of exploiting the hardware crypPer System tographic feature provided by the PCICA feature (PCI Feature Cryptographic Accelerator). This enables customers implementing e-business applications on Linux on zSeries to utilize this enhanced hardware security.
Coupling Links Processor Unit Assignments Model Max. PU SAP Standard A08** Min. PU* 1 8 2 2 B16** 1 16 4 4 C24** 1 24 6 6 D32** 1 32 8 8 Links Spares Standard IC ICB-2* 0-32 0-8 ICB-3** ICB-4 ISC-3 0-16 0-16 0-48 *requires STI-2 card **requires STI-3 card Note: At least one I/O channel (FICON, ESCON) or one coupling link (ISC, ICB) must be present.
z990 Frame and I/O Configuration Content: Planning for I/O Z-Frame A-Frame The following diagrams show the capability and flexibility built into the I/O subsystem. All machines are shipped with two frames, the A-Frame and the Z-Frame and can have 3 I/O cages 3rd I/O Cage CEC 2nd I/O Cage 1st I/O Cage between one and three I/O cages. Each I/O cage has 28 I/O slots.
Physical Characteristics Channels and channel adapters no longer supported on z990 z990 Power/Heating/Cooling The following channels and/or channel adapters are no System Power Consumption (kW) longer supported: • Parallel channels - an ESCON converter is required; IBM 9034 or Optica 34600 FXBT • OSA-2 adapters - use equivalent OSA-Express adapters, for FDDI use 1000BASE-T or Gigabit Ethernet with appropriate multi-protocol switch or router Model / Config 1 I/O Cage 2 I/O Cage 3 I/O Cage A08 5.
Coupling Facility — CF Level of Support Fiber-Optic Cabling and System Connectivity CF Level 13 Function In the world of open systems and Storage Area Networks Protocol used with fiber channel expected to be more efficient than ESCON Helps lower Total Cost of Ownership (TCO) Only 2 cross site FCP links / ESS required for most workloads Can provide better performance Able to increase distance between sites while maintaining acceptable application performance (SANs), the changing requirements for fiber-o
zSeries fiber cabling now offers three options to address This is a customized offering that includes trunk cables, a solution for your fiber cable installation. Enterprise fiber zone cabinets, patch panels and direct attach har- cabling offers two additional options to help meet your nesses for servers, directors and storage devices. structured (trunking) environments requirements.
z/OS While zSeries servers are supported by a number of dif- Integrated system services ferent operating systems, their most advanced features z/OS helps make critical data and processing functions are powered by z/OS. z/OS is the foundation for the future accessible to end users regardless of their location in the of zSeries, an integral part of the z/Architecture designed heterogeneous on demand world.
• Software pricing models designed to support on evolutionary step. It enables the system to continuously demand reality allocate resources for different applications, and this helps to reduce the total cost of ownership of the system. IRD is z/OS 1.6 is the first release of z/OS that requires the made up of three parts that work together to help optimize z/Architecture.
The IBM JVM processing cycles can be executed on the Applications that can be written to 64-bit virtual storage configured zAAPS with no anticipated modifications to have significantly larger addressability to data. With z/OS the Java application(s). Execution of the JVM processing 1.2, assembler programs can obtain virtual storage above cycles on a zAAP is a function of the Software Developer’s 2 GB for storing and manipulating data. This 64-bit sup- Kit (SDK) 1.4.1 for zSeries, z/OS 1.
The msys for setup dialogs use defaults and best prac- z/OS Version 1 Release 6 optional priced features tices values whenever possible and derive low-level values DFSMSdss™ DFSMShsm™ DFSMSrmm™ DFSMStvs Bulk Data Transfer (BDT) File to File Bulk Data Transfer SNA NJE from answers to high-level questions. After the configuration parameters have been specified, msys for Setup can automatically update the system configuration directly.
WLM Improvements for WebSphere DFSMS can automate and centralize storage manage- z/OS 1.5 can simplify WLM control for WebSphere. ment based on the policies that your installation defines for Customers now have the choice to manually define availability, performance, space, and security. With these WebSphere application environments for WLM or have optional features enabled, you can take full advantage of WebSphere define them as and when required. all the functions that DFSMS offers.
availability. This form of clustering, known as single system JES2 and JES3 image, also provides tremendous scale. Up to 32 zSeries JES2 and JES3 handle the submission of work and the servers with z/OS can appear as a single image for distribution of output for the Base Control Program. JES2 data sharing applications (see previous section, Parallel exercises independent control over its job processing Sysplex Clustering Technology). functions, whereas JES3 exercises centralized control.
z/OS provides systems management functions and fea- RMF tures to manage not only host resources, but also distrib- RMF is IBM’s strategic product for z/OS performance mea- uted systems resources. These capabilities have a long, surement and management. It is the base product to col- successful history of usage by S/390 customers.
Advanced System Automation z/OS Version 1 Release 6 optional priced features The unique and rich functions of IBM Tivoli System Auto- Security server: - RACF mation for OS/390 (SA OS/390) Version 2.2 (separately orderable) can ease z/OS management, reduce costs, and z/OS Version 1 Release 6 optional no-charge features increase application availability.
With one command, a security administrator can update Multilevel Security remote RACF databases without logging on to remote sys- z/OS 1.5 is the first and only IBM operating system to pro- tems. Throughout the enterprise, RACF commands can be vide Multilevel Security. This technology can help improve sent automatically to synchronize multiple databases.
z/OS SSL support includes the ability for applications to • Failover LDAP provides greater availability: You can now specify a list of Security Server-LDAP servers to be create multiple SSL environments within a single process. An application can now modify environment attributes used for storing certificate revocation lists (CRLs). When without terminating any SSL sessions already underway.
• Support for IPv6 and 64-bit addressing PKI Services • Peer-to-peer replication provides failover support for PKI Services is a z/OS component that provides a com- server availability. If a primary master server fails, there plete Certificate Authority (CA) package for full certificate is now a backup master to which LDAP operations can life cycle management. Customers can be their own Cer- be directed.
Network Authentication Service C/C++ • Network Authentication Service provides authentica- • Extra Performance Linkage (XPLINK) is provided in z/OS tion, delegation and data confidentiality services which 1.2. A C or C++ application has overhead associated are interoperable with other industry implementations with each function call. The more highly functionalized a based on the MIT Kerberos V5 reference implementa- program, the more overhead. XPLINK helps cut down on tion.
• Continue to take advantage of: C/C++ IBM Open Class® Library: As previously announced in Software Announcement 203-131, dated May 13, 2003, – Common cross platform programming Security APIs the application development support (that is, the head- within Java framework ers, source, sidedecks, objects, and samples from the – Java Record Input/Output (JRIO) APIs to provide Application Support Class and Collection Class libraries) record-oriented access to VSAM datasets, System is withdrawn from the C
REXX Functions In case of a failure of the primary IP stack, VIPA Takeover z/OS 1.4 extends the REXX language on z/OS when used introduced in OS/390 2.8 can support movement to a in a UNIX System Services zSeries REXX environment. backup IP stack on a different server in a Parallel Sysplex It includes functions for standard REXX I/O and to easily cluster. Dynamic VIPA Takeover can enhance the initial 2.
z/OS supports Enterprise Identity Mapping (EIM). EIM • HiperSockets Accelerator provides an “accelerated defines a user’s security context that is consistent through- routing path” which concentrates traffic between OSA- out an enterprise, regardless of the User ID used and Express external network connections and HiperSockets regardless of which platform the user is accessing. RACF connected LPARs.
• Separate address space for TN3270 servers for C programming, shell and utilities, client/server appli- • TCP/IP Sysplex health monitoring cations, and the majority of the standards for thread management and the X/Open Single UNIX Specification.
• More file descriptors per UNIX process are provided in z/OS UNIX supports hierarchical file systems that use UNIX z/OS 1.6, which supports up to 64K per process. APIs. Applications can work with data in both UNIX hierar- • Additional support for 64-bit programming, conditional chical file systems and traditional zSeries data sets. variables in shared memory, Euro symbol, and superkill support, along with enhancements to the automount zSeries File System (zFS) daemon and Unicode.
• Addition of ISHELL support for zFS. SMB Support has been further enhanced in z/OS 1.4 by: • Ability to perform I/O operations in parallel for a zFS • Simplified user administration with Windows Domain ID aggregate that spans multiple DASD volumes. This is mapping designed to provide improved performance when using • Performance improvements with RFS and large PDS or multi-DASD volume aggregates. PDS/E file systems • Support for 64-bit user virtual buffer addresses.
Print Services the JES spool. The advantage of this change can be higher availability and throughput, more flexibility for han- z/OS Version 1 Release 6 optional priced features dling print-related tasks, and scalability of Infoprint Server Infoprint® Server – IP PrintWay™ – NetSpool™ – z/OS Print Interface for very large distributed print environments.
• Data stream transforms let you print AFP™ applications Library Server converts BookManager documents to HTML on printers using PCL, PostScript or PDF. You can also for display through a Web browser. print PCL, PostScript and PDF output on AFP printers.
Installation Considerations z/OS 1.4 and 1.5 are supported on the following IBM servers: CustomPac is a suite of services designed to help you • S/390 Parallel Enterprise Server™ G5/G6 (or compatible server) (ESA/390 mode) efficiently install, migrate and maintain a z/OS system.
This consistent coexistence, migration and fallback policy For additional information on z/OS planning, refer to z/OS applies to release migrations for: and z/OS.e Planning for Installation, available on the z/OS Web site in the z/OS Library at: ibm.com/servers/eserver/ • Single system configurations zseries/zos.
Wizards Service in ShopzSeries reduces customers’ research time z/OS wizards are available on the Internet to help to set and effort by using their uploaded SMP/E Consolidated up some of the z/OS functions. These wizards are interac- Software Inventory (CSI) so that all applicable service, tive assistants that ask a series of questions about the including reach ahead service, for the installed FMIDs in task to be performed (for example, setting up a Parallel the target zones is selected.
z/VM The infrastructure for e-business on demand™ environ- z/VM V5 offers new levels of price/performance, functional ments can be deployed with visionary technology on z/VM, capabilities, and hardware exploitation that increase the including advanced virtualization, support for open source attractiveness of deploying Linux solutions on the main- software, and autonomic computing enhancements. With frame.
Engine-based pricing for z/VM V4 and its optional features Additional enhancements in z/VM V3 include: allows customers the opportunity to exploit the zSeries • Native FlashCopy for Enterprise Storage Server (ESS) for and S/390 servers more cost effectively than a discrete high-speed data copy server implementation.
– an interface to dynamically change users in work- With corresponding function available in Linux on zSeries loads, workload characteristics, and goals and S/390, z/VM 4.
can help simplify migration from one release to another, systems, offering an asynchronous cascading solution facilitate the transition to newer applications, provide a test providing a complete, consistent, and coherent copy of system whenever one is needed, and consolidate several data at a remote site.
– post-processing of Performance Toolkit for VM history same zSeries server. The HiperSockets function allows vir- files and of VM monitor data captured by the MON- tual machines and logical partitions to communicate inter- WRITE utility nally over the memory bus using the internal-queued-direct (IQD) channel type in the z990, z890, z900, and z800.
The guest LAN support provided in z/VM V4.2 simulates United Linux at the 2.4.19 kernel level.
z/VM Version 5 (V5) Enhancements in z/VM V5.1 include: z/VM Version 5 Release 1 (V5.1) continues the evolution of its Virtualization Technology and Linux Enablement premier and world-class zSeries virtualization technology with • Support for SCSI FCP disks enable the deployment of a a new version to offer traditional capabilities to manage zSeries Linux server farm on z/VM using only SCSI disks.
is designed to help systems personnel (system pro- • PCIX Cryptographic Coprocessor (PCIXCC) support grammers, administrators, and operators) with limited provides z/OS and Linux guest support for the PCIXCC Feature available with the z990 and z890 severs. Deliv- knowledge of z/VM deploy Linux servers on z/VM more ery of the z/VM PCIXCC support satisfies the Statement quickly and more easily. of Direction made on May 13, 2003.
• IPv6 support for guest LANs has been enhanced to allow the z/VM TCP/IP stack to be configured for IPv6 networks connected through OSA-Express operating in QDIO mode. The stack can be configured to provide static routing of IPv6 packets and to send IPv6 Router Advertisements. In addition, support is being provided to help application developers to develop socket applications for IPv6 communications. Systems Management Improvements The Performance Toolkit for VM has been enhanced in z/VM V5.
Copyright IBM Corporation 2004 To learn more Integrated Marketing Communications, Server Group Route 100 Somers, NY 10589 U.S.A. Visit the zSeries World Wide Web site at ibm.com/eserver/ zseries or call IBM DIRECT at 1 800 IBM-CALL in the U.S. and Canada. Produced in the United States of America 08/04 All Rights Reserved Australia 132 426 Austria 0660.5109 Belgium 02-225.33.
