MVS Core Technologies Project Opening WSC Hot Topics Session 2200

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1 MVS Core Technologies Project Opening WSC Hot Topics Session 2200 Riaz Ahmad Gaithersburg, Maryland, USA August 24, 2009 IBM Systems Permission is granted to SHARE Inc. to publish this presentation paper in the SHARE proceedings; IBM retains the right to distribute copies of this presentation to whomever it chooses. Trademarks The following are trademarks of the International Business Machines Corporation in the United States and/or other countries. BladeCenter* CICS* DB2* DFSMS DFSMSrmm DFSORT* DRDA* DS6000 DS8000 ECKD ESCON* FICON* FlashCopy* GDPS* HiperSockets HyperSwap IBM* IBM eserver IBM logo* IMS Language Environment* Multiprise* MVS Parallel Sysple* POWER6 POWERPC* Processor Resource/Systems Manager PR/SM RACF* Redbooks* Resource Link REXX RMF S/370 S/390* S/390 Parallel Enterprise Server Sysple Timer* System p System Storage System System z System z9* System z10 System/370 System/390* Tivoli Storage Manager VSE/ESA VTAM* WebSphere* Series* z9* z10 z/architecture* z/os* z/vm* z/vse zseries* * Registered trademarks of IBM Corporation The following are trademarks or registered trademarks of other companies. Adobe, the Adobe logo, PostScript, and the PostScript logo are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States, and/or other countries. Cell Broadband Engine is a trademark of Sony Computer Entertainment, Inc. in the United States, other countries, or both and is used under license therefrom. Java and all Java-based trademarks are trademarks of Sun Microsystems, Inc. in the United States, other countries, or both. Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation in the United States, other countries, or both. Intel, Intel logo, Intel Inside, Intel Inside logo, Intel Centrino, Intel Centrino logo, Celeron, Intel Xeon, Intel SpeedStep, Itanium, and Pentium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. INFINIBAND, InfiniBand Trade Association and the INFINIBAND design marks are trademarks and/or service marks of the INFINIBAND Trade Association. UNIX is a registered trademark of The Open Group in the United States and other countries. Linu is a registered trademark of Linus Torvalds in the United States, other countries, or both. ITIL is a registered trademark, and a registered community trademark of the Office of Government Commerce, and is registered in the U.S. Patent and Trademark Office. IT Infrastructure Library is a registered trademark of the Central Computer and Telecommunications Agency, which is now part of the Office of Government Commerce. * All other products may be trademarks or registered trademarks of their respective companies. Notes: Performance is in Internal Throughput Rate (ITR) ratio based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput that any user will eperience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equivalent to the performance ratios stated here. IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply. All customer eamples cited or described in this presentation are presented as illustrations of the manner in which some customers have used IBM products and the results they may have achieved. Actual environmental costs and performance characteristics will vary depending on individual customer configurations and conditions. This publication was produced in the United States. IBM may not offer the products, services or features discussed in this document in other countries, and the information may be subject to change without notice. Consult your local IBM business contact for information on the product or services available in your area. All statements regarding IBM's future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only. Information about non-ibm products is obtained from the manufacturers of those products or their published announcements. IBM has not tested those products and cannot confirm the performance, compatibility, or any other claims related to non-ibm products. Questions on the capabilities of non-ibm products should be addressed to the suppliers of those products. Prices subject to change without notice. Contact your IBM representative or Business Partner for the most current pricing in your geography. 2 1

2 Topics Announcements IBM Statements of Direction Operating Systems status Washington Systems Center Flashes Parallel Sysple TM 3 z10 FICON Epress8 LX & SX FICON Epress8 Supported on System z10 EC and BC Can be shared among LPARs, and defined as spanned High Performance FICON for System z (zhpf) for FICON Epress8 Same Software Requirements as for FICON Epress4 8 Gbps with Auto-negotiate capability (2, 4, or 8 Gbps). 1 Gbps NOT supported LX - 9 micron single mode fiber Unrepeated distance - 10 kilometers Receiving device must also be LX SX - 50 or 62.5 micron multimode fiber Unrepeated distance (20 to 500 meters) varies with speed and fiber type Receiving device must also be SX Personalize as: FC - Native FICON and CTC FCP - Support of SCSI devices SX FC Km LX FC 3325 LC Duple 2, 4, 8 Gbps 2, 4, 8 Gbps 2, 4, 8 Gbps 2, 4, 8 Gbps 4 2

3 FICON Epress8 Software Requirements FICON Epress8 (CHPID type FC) when utilizing native FICON or Channel-To-Channel (CTC), on the z10 EC and z10 BC servers requires at a minimum: z/os V1.7 with the IBM Lifecycle Etension for z/os V1.7 (5637-A01). z/vm V5.3, z/vse V4.1, z/tpf V1.1, TPF V4.1 at PUT 16. Linu on System z distributions: Novell SUSE SLES 9, SLES 10, and SLES 11. Red Hat RHEL 4 and RHEL 5. FICON Epress8 (CHPID type FC) for support of zhpf protocol for single-track operations on the z10 EC and z10 BC servers requires at a minimum: z/os V1.8, V1.9, or V1.10 with PTFs. z/os V1.7 with the IBM Lifecycle Etension for z/os V1.7 (5637-A01) with PTFs. Linu on System z distributions: IBM is working with its distribution partners to include support in future Linu on System z distr. releases. FICON Epress8 (CHPID type FC) for support of zhpf protocol for multitrack operations on the z10 EC and z10 BC servers requires at a minimum: z/os V1.9 and V1.10 with PTFs. FICON Epress8 (CHPID type FCP) for support of SCSI devices on the z10 EC and z10 BC servers requires at a minimum: z/vm V5.3, z/vse V4.1. Linu on System z distributions: Novell SUSE SLES 9, SLES 10, and SLES 11. Red Hat RHEL 4 and RHEL 5. 5 z/os Version 1 Release 11 * With designs for a Dynamic Infrastructure. Improving Usability and Skills z/osmf, Multi-user support for HCM, Health and Migration Checks, IFASMFDL and ISPF improvements, MFA out of IEAVMXIT, Better SMF statistics for 64-bit storage, Automated VTOCIX rebuild, Configuration Assistant, IDCAMS Delete masking, Elimination of HASPINDX, DFSMSrmm Integrating new Applications and Supporting Industry and Open Standards zaap on ziip, Additional IEEE-standard Decimal FP for C/C++, METAL C RTL etensions, IEWPARMS support, FTP support for named pipes, SYSREXX Improvements, PKI web pages, EOF on OPEN for non-sms data sets, Unicode Improving Availability Sysple partitioning enhancements, Predictive failure analysis, Alternate Sysple Root Filesystem support, SETALLOC command, Remote Pair FlashCopy support, AutoIPL improvements Etending the Network Etensions to EAV support, RMODE 64 DSECTs, HDELETE for IEFBR14, More Large Page eploitation, EDT 2224 What s New in z/os changes, 1.11 DS8000 Mile-High Flash drive support, City Edition Today 4:30 SMS volume separation, C/C++ Prefetch, XES improvements, Sysple Distributor Self Managing Capabilities BCPii, 2K reporting classes, HiperDispatch ziip improvements, Improved cross-library tape load balancing, LDAP load balancing, Sysple Distributor, OAM, DFSMSrmm improvements Enhancing Security Scalability & Performance Drive-level disk encryption; SSL code New SMTP client, FTP support for signing; ICSF 14-digit PANs, EAV, LOGON RECONNECT for improved AES support, Crypto query TN3270, Storage shortage management, service; RACF general resource Performance enhancements, ACF/TAP, support in LDAP; PKI native key Deleing Structures with Pending generation and End User Entity Deallocation support; 6 * All statements regarding IBM future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only. 3

4 zaaps and ziips Designed to help implement, integrate, optimize new technologies Enabled technologies, in order of introduction: Java IBM z/os JVM Java technology-based applications eligible for zaap Centralized data serving eligible for ziip - Portions of BI, ERP, and CRM remote connectivity to DB2 V8, as well as portions of long running parallel queries, and select utilities Network encryption on ziip - IPSec network encryption/ decryption (z/os 1.8) XML parsing z/os XML System Services eligible on zaap or ziip (z/os 1.9, 1.8 and 1.7 w/ maint.) Remote mirror ziip assisted z/os Global Mirror function (z/os 1.9) HiperSockets Multiple Write operation for outbound large messages (z/os 1.9) eligible for ziip Business Intelligence - IBM Scalable Architecture for Financial Reporting provides a high-volume, high performance reporting can be eligible for ziip. DB2 sort utility DB2 utilities sorting fied-length records using IBM's memory object sorting technique Intra-server communications z/os CIM Server processing eligible for ziip (z/os 1.11) zaap on ziip capability - Optimize the purchase of a new ziip or maimize your investment in eisting ziips 7 z/os CIM Server workload eligible for ziip CIM (Common Information Model) is used within z/os to communicate information on or to manage resources for system components z/os 1.11 is to be updated so z/os CIM server processing is eligible to run on the ziip Eligible workloads include CIM server and CIM provider Makes the development and deployment of z/os systems management applications more attractive option Applications that access CIM-enabled resources and providers can benefit Information providers include RMF, WLM, DFSMS and BCP Applications include z/os Capacity Provisioning Manager and parts of z/os Management Facility Application CIM Client CIM XML Processor CIM clients send requests to CIM server CIM HTTP Client CIM HTTP Server CIM XML Processor CIM Server RMF monitoring providers RMF Distributed data Server (DDS) RMF Monitor III gathers and returns metrics to the DDS CIM server responds with data to CIM client z/os OS management providers native z/os data Javabased CIM client eligible for zaap CIM server eligible for ziip An eample with z/os system data and RMF metrics 8 4

5 What is the zaap on ziip capability? A new capability that can enable System z Application Assist Processor (zaap) eligible workloads to run on System z Integrated Information Processors (ziips) Makes Java and z/os XML System Services-based workloads eligible to run on eisting ziips maimizes ziip investment Available September 25, 2009 with z/os 1.11 and z/os 1.10 & 1.9 (with PTF) This new capability is NOT available for z/os LPARS if zaaps are installed on the server Can help simplify systems management by reducing the need to plan for and manage multiple types of specialty engines This new capability does not remove the requirement to purchase and maintain one or more general purpose processors for every ziip processor on the server This part of the IBM terms and conditions surrounding the IBM System z specialty engines is unchanged 9 How to enable the zaap on ziip capability Requirements System z9 or z10 With ziip(s) and no zaap(s) Available on z/os 1.11, and z/os 1.9 and 1.10 (with for with PTFs for APAR OA27495) New IEASYS system parameter ZAAPZIIP=YES or NO (or ZZ=YES or NO) For z/os 1.11 default = YES (enabled) For z/os 1.9 and 1.10 default = NO (not enabled) If zaaps are on the server, the zaap on ziip capability will not be honored The zaap on ziip capability and ZAAPZIIP system parameter is described in z/os V1R11.0 MVS Initialization and Tuning Reference (SA ) For zaap and ziip information: ibm.com/systems/z/advantages/specialtyengines/inde.html 10 5

6 zaap on ziip** - An Eample CPs and ziips Can enable you to run ziip- and zaap-eligible workloads on the ziip Maimize your investment in eisting ziips White space White space Potentially ADD the following workloads to your eisting ziips General purpose workload Some amount zaap eligible work CPs ziips ZAAPZIIP=YES General purpose workload CPs ziip Java via the IBM SDK (IBM Java Virtual Machine (JVM)), eploiters include portions of : WebSphere Application Server IMS DB2 CICS Java batch CIM Client applications z/os XML System Services, eploiters include portions of: DB2 9 (New Function Mode) Enterprise COBOL V4.1 Enterprise PL/I V3.8 IBM XML Toolkit for z/os CICS TS V4.1 ** For illustrative purposes only, your results will vary. This new capability is not available for z/os LPARS if zaaps are installed on the server 11 zaap is still available! Customers with zaaps should continue to invest in zaaps Maimizes the new workload potential for the platform At this point IBM does not recommend converting zaaps to ziips in order to take advantage of the zaap on ziip capability zaaps have a 5 year history, some application or middleware may have zaap-specific code dependencies For eample: code may count the number to zaap engines for multithreading performance optimization 12 6

7 When is zaap on ziip capability NOT available? z/os LPARs This new capability is not available for z/os LPARS if zaaps are installed on the server Why? The zaap on ziip capability is intended to enable the zaap eligible work to run on ziip when no zaap is defined. It is not intended to provide an overflow so additional zaap eligible workload can run on the ziip z/os as a guest of z/vm This new capability is not available if zaaps are defined in the virtual machine for z/os This type of scenario, where z/os is a guest of z/vm, may be useful as a test environment 13 IBM z/os Management Facility V1.11 IBM z/os Management Facility (z/osmf) V1R11 (5655-S28) is a new z/os product for a modern, browser based management console for z/os z/osmf is intended to enable system programmers to more easily manage the day to day operations and administration of the z/os systems Delivers solutions in a task oriented, browser based user interface The initial functions include: z/osmf Administration Incident Log Configuration Assistant for z/os Communication Server Links 14 7

8 IBM z/os Management Facility Manges z/os from z/os with Industry standards z/os V1.10 or V1.11 LPAR App. server z/os elements Browser HTTP(s) z/os MF app Servlets DOJO/JAVA script CIM System REXX RACF and others z/os Management Facility is an application on z/os Manages z/os from z/os Browser communicates with z/os MF via secure connection, anywhere, anytime Parts of z/os Management Facility, such as the Incident log capability, components use Java and CIM Java apps and Javabased CIM client eligible for zaap z/os CIM server eligible for ziip 15 Initial Login View Welcome page when you first accesses the URL and has not logged in yet To log in you will need a z/os userid that has been defined and enabled for z/osmf 16 8

9 IBM z/os Management Facility Welcome Page 17 Incident Log Summary Information Many fields, set tracking IDs Popup with actions Set the duration 18 9

10 Incident Log View Diagnostic Details Tab shows lists of data (logrec and error log) 19 z/osmf Configuration Configuration Assistant for z/os Communications Server A GUI that you can use to generate configuration files for z/os Application Transparent-Transport Layer Security (AT-TLS), IP Security (IPSec), Network Security Services (NSS), Policy Based Routing (PBR), Quality of Service (QoS), and Intrusion Detection Services (IDS) Originally available as a Microsoft Windows web download since z/os 1.7 Functions have grown over time All functions available with Windows are also provided with z/osmf If you are familiar with the Windows GUI, the Configuration Assistant on z/osmf is essentially the same Now available with z/osmf V1.11 on z/os V1.11 Configuration files can now be saved to local disk storage that is accessible to your z/os system where the Configuration Assistant is running so FTP (from Windows) is not required Can also import configuration tet files in cases where users have already defined policies and would like to begin using the Configuration Assistant 20 10

11 Configuration Assistant for z/os Communications Server Create configuration files for any number of z/os images with any number of TCP/IP stacks per image. Select the TCP/IP stack that you want to configure and the technology, such as AT-TLS or IPSec. Click on "Action" and select "Configure" to begin configuring that technology. 21 z/osmf Prerequisites z/os Management Facility requires z/os 1.10 and later z/os 1.10 requires additional service, as defined in the program directory The Configuration Assistant for z/os Communications Server portion of z/os Management Facility requires z/os V1.11 or later Client machine (no client machine install requirements) Windows XP operating system or later Supported browsers: Mozilla Firefo (recommended) Mozilla Firefo 2 Internet Eplorer 7 Internet Eplorer

12 z/osmf Packaging & Installation z/osmf V1R11 is comprised of: FMID HSMA110 IBM z/os Management Facility 2398 z/os FMID Simplification HBBN700 IBM Discussion: WebSphere IBM Application z/os Management Server OEM Facility Edition V1.11 for z/os Wednesday v7.0 6:00 z/os 0921 V1R11 Introducing ServerPac the IBM z/os Management Facility V1.11 Thursday 1:30 Setup jobs included in Full-System Replacement path z/osmf V1R11 CBPDO (on z/os V1R10 or z/os V1R11) Use Program directory and Configuration scripts to setup z/osmf is designed to be installed using the scripts provided 23 Agenda Announcements IBM Statements of Direction Operating Systems status Washington Systems Center Flashes Parallel Sysple TM 24 12

13 Statements of Direction* The last release of z/os to support Run-Time Library Services for Language Environment was z/os V1.5. In the release following z/os 1.11, IBM plans to remove the underlying CSVRTLS services from z/os. A way to track its usage, and to enable you to find any programs that might be using these services, is planned to be made available for z/os 1.9 and 1.10, and included in 1.11 orders with APAR OA29019 in September The msys for Setup element of z/os is planned to be removed in the release following z/os IBM intends to continue to deliver improvements to help with z/os setup and configuration in the future. In a future release, IBM plans to withdraw support for z/os Distributed Computing Environment (DCE) and Distributed Computing Environment Security Server (DCE Security Server). IBM recommends the IBM WebSphere Application Server, the IBM Network Authentication Service, and/or the IBM Directory Server as replacement strategies for each of the DCE technologies. In a future release, IBM plans to withdraw support for the z/os Distributed File Service support that utilizes the Distributed Computing Environment (DCE) architecture. IBM recommends the z/os Network File System (NFS) implementation as the replacement. The Distributed File Service also supports the Server Message Block (SMB) architecture. Support for SMB remains, and is not affected by this withdrawal of support. z/os 1.11 is the last release for which Java SDK1.4 (5655-I56) support is planned. For more information about z/os Java SDK products see : ibm.com/systems/z/os/zos/zos_sods.html for details 25 * Statements regarding IBM future direction and intent are subject to change or withdrawal, and represents goals and objectives only IBM Corporation Agenda Announcements IBM Statements of Direction Operating Systems status Washington Systems Center Flashes Parallel Sysple TM 26 13

14 z/os Key Dates z/os Version 1 Release 10 August 5, 2008: Announcement September 26, 2008: General Availability via ServerPac, CBPDO and SystemPac October 13, 2009: Recommended last date for processing orders for z/os 1.10 via ServerPac and CBPDO Offering June 28, 2010: Recommended last date for submitting z/os 1.10 orders via SystemPac z/os Version 1 Release 11 February 24, 2009: Preview Announcement August 18, 2009: Announcement September 25, 2009: Planned General Availability via ServerPac, CBPDO and SystemPac 27 z/os Support Summary z/os 1.7# z800 z900 z890 z990 z9 EC z9 BC z10 EC z10 BC End of Service 9/08 Coeists with z/os 1.9 Planned Ship Date 9/05 z/os 1.8@ 9/09* 1.10* 9/06 z/os 1.9 9/10* 1.11* 9/07 z/os /11* 1.12* 9/08* z/os /12* 1.13* 9/09* z/os /13* 1.14* 9/10* Note: For HiperDispatch, z/os 1.7 requires the ziip Web Deliverable to be installed (but not a ziip processor) # IBM Lifecycle Etension for z/os A fee-based corrective service offering AL: IBM Lifecycle Etension for z/os A fee-based corrective service offering AL: * All statements regarding IBM's plans, directions, and intent are subject to change or withdrawal without notice. Any reliance on these Statements of General Direction is at the relying party's sole risk and will not create liability or obligation for IBM. 14

15 IBM Lifecycle Etension for z/os V1.8 For customers that have not completed their migration from z/os 1.8 to z/os 1.10 or z/os 1.9, IBM plans to provide a lifecycle etension with defect support Fee-based etended support (defect only) Intended to be available when support for z/os V1.8 ends (Sept. 30, 2009) Up to 2 years from October 1, 2009 This support is not intended to change coeistence, migration, and fallback policies for z/os Announcement Letter: Agenda Announcements IBM Statements of Direction Operating Systems status Washington Systems Center Flashes Parallel Sysple TM 30 15

16 Server Time Protocol (STP) Restoring Configuration across a POR TD Recent enhancements to STP Licensed Internal Code (LIC) delivers system management improvements by saving the STP configuration across PORs and power failures for a single server and a two server STP-only CTN. This Flash documents and outlines the prerequisites, set up required, and steps needed to enable this functionality. ibm.com/support/techdocs 31 Steps for migrating to IBM System z9 and z10 within HCD WP This paper describes the steps required in HCD to migrate eisting processor definitions to an IBM System z9 (EC and BC) or IBM System z10 (EC and BC) processors. ibm.com/support/techdocs 32 16

17 z/os: Planning Considerations for HiperDispatch Mode WP With the introduction of the IBM System z10 processor, z/os workload management and dispatching have been enhanced to take advantage of the System z10 hardware design. A new mode of dispatching called HiperDispatch has been implemented to provide additional processing efficiencies. This White Paper describes planning considerations related to HiperDispatch ibm.com/support/techdocs 33 z/os: Predictive Failure Analysis WP z/os introduces Predictive Failure Analysis (PFA). With PFA, z/os etends its high availability characteristics by going beyond failure detection to predicting problems before they occur. Your z/os system is designed to learn heuristically from its own environment to anticipate and report on system abnormalities Essentially, PFA can help you avoid soft failures Predictive Failure Analysis is supported on z/os 1.10 and later release ibm.com/support/techdocs 34 17

18 Agenda Announcements IBM Statements of Direction Operating Systems status Washington Systems Center Flashes Parallel Sysple TM 35 CF Structures with Pending Deallocation Coupling Facility Structures with a status of PENDING DEALLOCATION can lead to confusion when displayed via Display XCF When a CF that contains Structures, loses connectivity from all systems in the sysple, XCF remembers information about those structures that were in the lost CF XCF checkpoints information about those structures in the CFRM Active Policy The checkpoint is the way XES remembers to deallocate these CF Structures if connectivity is ever gained back to the lost CF These CF Structures show up as pending deallocation structures in Display XCF output Customers find the appearance of these phantom structure instances in inaccessible CFs confusing Customers will try to take actions to remove the pending deallocation checkpoint record entries In some cases, such as a CEC upgrade, the CF along with its structures will be permanently gone z/os 1.11 Enhancement: Supports a new option on SETXCF FORCE command to request cleanup of pending deallocation structures Allows customers to indicate to XCF to eliminate the potentially confusing structure instances 36 18

19 CF Structures Pending Deallocation SETXCF Operator Command SETXCF FORCE,PNDSTR,CFNAME=cfname Specifies that the system is to remove pending-deallocation structure entries from the CFRM Active policy The CFNAME specified should be a CF that is not connected to any system in the sysple The CF will remain inaccessible for an etended period of time or will be brought back online with all structures removed 37 CF Structures Pending Deallocation Messages Two new messages: IXC554I and IXC555I IXC554I and IXC555I will be issued in response to the SETXCF FORCE PNDSTR command to remove pending deallocation structure information from the CFRM active policy IXC555I is a hardcopy only message and will be issued for each structure record deleted IXC554I is a console message that will be issued at the completion of the force processing 38 19

20 CF Structures Pending Deallocation Support is in z/os 1.11 Will not be rolled back The SETXCF FORCE Command option for PNDSTR will only eecute successfully on z/os 1.11 systems and above Lower level releases will correctly handle the deleted checkpoint entries and display the correct information if a z/os 1.11 system has deleted the structure checkpoint entries 39 z/os, zseries and Parallel Sysple Sessions 2100 EWCP Project Opening and WSC z/os Performance Hot Topics 2205 Fully Wired Hot Topics Denver Mile High City Edition Free MVS Tools and Tips Update 2207 Parallel Sysple Update 2208 Bit Bucket System z10: Business and Enterprise Class Overview 2215 System z10: Enterprise Class User Eperience 2217 z/os Software Positioning for a z10 Server 2222 z/os 1.11: Migration It s Up (2 Parts) 2225 z/os 1.11: User Eperience 2228 z/os Sysprog Goody Bag 2229 A z/os System Programmer Productivity Tool Bag 2231 Migration: Get Ready, Get Set, Last Call for z/os 1.10 ( 3 Parts ) 2235 z/os Mean Time To Recovery Improvements 2239 IBM and a User Present Their Philosophy About Applying Maintenance on z/os 2243 z/os Core Technologies Q&A Free for All 2247 System z: LPAR Advanced Topics 2275 ISPF User s Boot Camp (2 Parts) 2328 z/os 1.11 JES2 Product Update and Latest Status 2425 DFSMS 1.11 Update 3202 What s New in z/os Communications Server 9224 Linu System Management for the Mainframe System Programmer - Part Linu System Management for the Mainframe System Programmer - Part

21 Important Web Sites z/os Web site General Q & A Statements of Direction z/os Internet Library z/os Downloads CustomPac ShopzSeries z/os Communications Server 41 Thank You! 42 21