11/14/2018 WSC Guidelines for a Healthy WebSphere Application Server Runtime on z/OS Techdoc TD104172, May 2009 There are no real “Speaker Notes” with.

11/14/2018 WSC Guidelines for a Healthy WebSphere Application Server Runtime on z/OS Techdoc TD104172, May 2009 There are no real “Speaker Notes” with this presentation. Some thoughts: This is sort of a catalog of Techdoc articles about WebSphere Application Server on z/OS. John Hutchinson, IBM Americas Advanced Technical Support -- Washington Systems Center Gaithersburg, MD, USA 11/14/2018

a Catalog of Information for WAS on z/OS…
11/14/2018 a Catalog of Information for WAS on z/OS… High-level guide to documents will help you Configure & Manage WAS on z/OS, based on Washington Systems Center (WSC) experiences Techdoc TD104172 Click on Hyperlinks to access documents on the web at the following sites: Techdocs at WPxxxxxx (White Papers) TDxxxxxxx (Hints, Tips, and Technotes) PRSxxxx (Presentations and Downloads) Redbooks (SG24-xxxx) at DeveloperWorks at alphaWorks at Don’t forget: the primary information source for WAS: the Information Center: 11/14/2018

Healthy Topics A. Introduction & Education
11/14/2018 Healthy Topics A. Introduction & Education B. Installation Setup & Configuration C. Administration & Operations D. Availability & Recovery E. Security F. Application Deployment & Management G. Performance H. Problem Determination 11/14/2018

A. Introduction Before you start… Hardware Requirements:
11/14/2018 A. Introduction Before you start… Hardware Requirements: 2 Gb Real, several DASD volumes (min) Software Requirements: “Program Directory” or “Target System Requirements” in the InfoCenter. Start with the latest version ( or ) if you’re setting up a new server. Configuration options: Understand the functions & options available. Use an ND (Network Deployment) configuration for availability, performance, and management qualities. 1st time: Start with a standalone server to master the fundamentals, but federate it into an ND configuration for practical use. Web Information Sources: Navigating the IBM Web in search of WebSphere Application Server for z/OS – TD102724 Saving time with WebSphere Application Server documentation – PRS3546 Real Stg SDK 11/14/2018

11/14/2018 Education Resources Best way to learn about WebSphere is a workshop with hands-on lab exercises, such as: Wildfire Classes – PRS1778 WebSphere for z/OS Version 7 for z/OS Workshop (WBSR7) PRS3422 Security Workshop: WebSphere App. Server for z/OS (WSW07) PRS1438 WebSphere Process Server V6.1 for z/OS Workshop (ZWPS6) PRS3421 Enroll via your IBM Rep. who can contact Judith Ramage or call IBM Training courses ‘Maximizing WebSphere Performance on z/OS’ (OZ850) IBM Education Assistant (educational modules designed to help you gain a better understanding of WebSphere products) 11/14/2018

B. WAS Installation Product code loaded and applied using SMP/E.
11/14/2018 B. WAS Installation Product code loaded and applied using SMP/E. See the ‘Program Directory’ available in the InfoCenter. See Preventive Service Planning (PSP) site for Service Recommendations and Cross Product Dependencies: WAS V6.1: upgrade ‘WASAS610’ and subset ‘H28W610’ WAS V7.0: upgrade ‘WASAS700’ and subset ‘H28W700’ The latest PTFs can also be found at click on ‘Fixes by version’ under the ‘Download’ section. 11/14/2018

Set up z/OS Components for WAS
11/14/2018 Set up z/OS Components for WAS Several components & services need to be configured for a robust z/OS environment before you can configure WAS: - plus the necessary skills to use them: UNIX Systems Services (USS) with HFS & zFS. TCP/IP, including DNS, Resolver, INETD, TN3270 RRS (Resource Recovery Services), Logger RACF (or equivalent) TSO, ISPF, SDSF, & RMF Optionally, DB2, CICS, MQ, IMS System Programmer productivity tools (e.g., MXI from Rocket Software.) See “Preparing the base operating system” in the InfoCenter 11/14/2018

Workstation Tools 3270 Emulator (IBM Personal Communications)
11/14/2018 Workstation Tools 3270 Emulator (IBM Personal Communications) Telnet client (PuTTY, TeraTerm) FTP clients (WS_FTP LE) Web browser (Internet Explorer, Firefox) PDF Reader (Adobe) Text File Editor (PFE , Notepad, or SlickEdit) ASTK (Application Server Toolkit) & zPMT (z/OS Profile Management Tool) RAD (Rational Application Developer) or WID Each of the hot links above take to you the tool’s download site or home page. 11/14/2018

Configuring WAS – 1st Steps
11/14/2018 Configuring WAS – 1st Steps For your first application server (if you didn’t attend a workshop), start with a standalone server: Using zPMT and Spreadsheet to build a Quick Standalone - WP100999 Next build an ND (Network Deployment) cell, which is covered in A 'Top Down' Configuration Approach to WebSphere on Z - WP101030 Based on more comprehensive white paper: WebSphere z/OS V6 - WSC Sample ND Configuration - WP100653 11/14/2018

Important HFS Configuration Tips
11/14/2018 Important HFS Configuration Tips The ‘smpe_HFS’ should be mounted read-only. Configure separate HFS/zFS file systems for each node. Must be owned by the same system as the node is running. Mounted with “no Automove” attribute. List in Parmlib BPXPRMxx member, so mounted correctly after IPL. See SHARE presentation “Avoiding the Potholes on the WebSphere Application Server On Ramp” - PRS2853. Contains many pointers along with supporting tools (REXX execs, sample JCL, spread-sheets, and examples.) 11/14/2018

More Configuration Papers
11/14/2018 More Configuration Papers Planning & General Guidance: Planning Test, Production and Maintenance - WP100396 Problem Avoidance for WAS for z/OS (Ch. 1) - REDP6003 zPMT (z/OS Profile Management Tool): zPMT Introduction - WP100871 Using zPMT & Spreadsheet to Build Quick Standalone WP100999 Introducing the WCT for z/OS - PRS3357 31-bit considerations: SHRLIBRGNSIZE and Effect on 31-Bit JVM Storage Needs – WP101320 Space in Pvt Reg. for shared objects may affect LE storage available for a JVM to acquire for the heap or other uses. 64-bit considerations: 64-bit Addressing Support in WAS for z/OS V6.1 - WP100920 C/C++ Considerations with 64-bit WAS for z/OS - WP101095 64-bit Effect: 5 different ways to look at Applications- WP101121 11/14/2018

Introducing the WebSphere Configuration Tool (WCT) for z/OS - PRS3357
Workstation based graphical tool Create customized jobs to build & migrate a WebSphere Application Server for z/OS environment. Replaces the ISPF Dialogues & AST. Eclipse based tool – much “leaner” than the AST. PMT - Profile Management Tool Supports WebSphere V 6.1 and V 7 MMT - Migration Management Tool See WP101329 Use with "WebSphere V7 Planning Spreadsheet” - PRS3341 3 Spreadsheets create input to the WCT: Network Deployment Cell Standalone Agent, Job Manager & Server DMZ (Secure Proxy) 11/14/2018

11/14/2018 Hidden Gems: Little Known Features of WAS on z/OS - WP (includes a script to clean up common variables- message routing) Sticking with the script – cleaning up common variable settings To GMT or not to GMT - using ras_time_local Keeping track when your applications don't Putting trace output in its place Managing your message output What’s going on? The DISPLAY command SERVERS and SERVANTS LISTENERS and CONNECTIONS TRACE and ERRLOG JVMHEAP and MODE (31 or 64-bits) WORK, CLINFO and MDBSTATS Spreading the work around - stateful session placement Please stand by - pause/resume listeners Are your enclaves propagating? Should you care? Handling large IIOP messages in 64-bit mode Servant survivor - staying up during a timeout flurry Throttle up - scaling up to a lot of connected clients 11/14/2018

11/14/2018 Hidden Gems 2: More great but Little Known Features in WebSphere z/OS - WP101464 In Version 6.1: Making controller ASIDs reusable Allowing servants to connect to WLM early SMF record changes for IBM Getting Started Sub-Capacity Pricing (GSSP) In Version 7.0: Starting multiple servants in parallel, and setting minimum and maximum numbers for servants. Controlling the number of dispatch threads in a servant Improved tools and diagnostics for troubleshooting. Ability to dynamically update the dispatch timeout delay Spinning server output by volume instead of by time Improved WLM classification wildcarding 11/14/2018

Other Configuration Options
11/14/2018 Other Configuration Options Sysplex Distributor to increase availability & workload balancing WP100312 HTTP Server for session affinity and routing. Understanding the HTTP Web Server Plugin - PRS1467 IBM HTTP Server for z/OS Powered by Apache – WP101170 Extending IHS powered by Apache with Custom Modules – WP101225 Introducing WebSphere V7 Secure Proxy Server – WP101423 Job Manager Introducing The WebSphere V7 Job Manager for z/OS WP101341 Heterogeneous Cells spanning different operating system platforms WP100644 Cloudscape Configuring the Cloudscape Network Server for WAS for z/OS - TD Shows how to set up Cloudscape in a generic WebSphere Server. 11/14/2018

11/14/2018 Runtime Migration Migrate your Version 5 or WAS to V.6.1 or V.7 with the automation scripts detailed in these papers: From V. 5 Sample Migration from WAS V.5 to V.6 on z/OS - WP100559 To V. 6.1 Migrating to WAS V.6.1 on z/OS - WP To V. 7 Migrating to WAS V.7 on z/OS - WP (See Next foil.) 11/14/2018

11/14/2018 Migrating to WAS z/OS V.7 No need to stop servers during migration in most cases. Leave existing runtime running, shutting down only at the very end when the new V7 servers are to come up. Break the main migration job into three smaller jobs BBOWPRO*, BBOWPRE* and BBOWPOS*. Advantages: Each job takes less time and less resource Failure isolation more granular, easier recovery/cleanup steps Not migrating applications when doing DMGR migration With many apps the migration could take too long. Decouples the runtime migration from application migration. Techdoc: WP101329 MMT (z/OS Migration management Tool) - Panels Customized Jobs, Examples, Problems/Solutions, Planning 11/14/2018

Configuring WAS with other Resource Managers
11/14/2018 Configuring WAS with other Resource Managers Techdocs to help set up connections to resource managers: DB2 Enabling WAS for z/OS to use DB2 Universal JDBC Driver - TD101663 CICS Connecting CICS Transaction Server from WAS for z/OS V 6 WP100607 Using JMS & WAS to Interact with CICS - MQ/CICS Bridge WP100682 IMS IMS Connectivity in an On Demand Environment - SG IMS Java Guide & Reference - SC MQ WebSphere for z/OS JMS and MDB IVP - WP100424 11/14/2018

WebSphere Application Server
11/14/2018 Extensions to WAS Products configured on top of WAS: XD (Extended Deployment) - PRS1856 Mixed Workloads in WebSphere XD V6.0 on z/OS - SG247267 Scaling for High Availability: XD & WAS for z/OS - REDP3968 Feature Pack for Web Services - WP101084 Feature Pack for EJB3 - WP101142 WAS V7 Feature Pack for SCA - WP101394 WebSphere Portal Server - TD104289, WP101249, SG ITCAM V6.1 on WebSphere for z/OS - WP101206, SG WPS (see next foil) WebSphere Application Server XD FPs Portal ITCAM WPS 11/14/2018

More product extensions to WAS
11/14/2018 More product extensions to WAS Process Server – the Flagship of SOA… WPS (WebSphere Process Server) & WESB (WebSphere ESB): WPS Wildfire Workshop Material: PRS3421 WPS ND Deployment: WP101209 WPS "Easy" ND Deployment: WP101253 Performing Installation Verification for WPS on z/OS V6.1: WP101218 WPS & WESB V.6.0 for z/OS Configuration Tools & Samples: PRS2520 z/OS Getting Started: WPS & WESB V6 SG z/OS: WebSphere Business Process Management V6.1.2 Production Topologies” RedBook SG V6.2 Production Topologies” RedBook SG WebSphere Application Server XD FP WPS Portal ITCAM 11/14/2018

C. Operations & System Administration
11/14/2018 C. Operations & System Administration Day-to-day operation of WebSphere can be administered through various Operator Interfaces: WebSphere administrative console (using a web browser) wsadmin scripts or command-line tools in a USS environment, MVS Console (usually under TSO and SDSF), Ant tools, or JMX programs. See InfoCenter article Where to perform WebSphere Operations 11/14/2018

Operations: MVS (TSO / SDSF) Consoles
11/14/2018 Operations: MVS (TSO / SDSF) Consoles Managing Operator Message Routing - TD103695 SDSF system displays and MVS commands - TD Managing LE Options in WebSphere Servers - TD103863 Creating Dynamic 3270 Screen Size in PCOM - TD to increase the number of rows & columns on your 3270 displays: 11/14/2018

Administration Use the wsadmin tool to automate Configuration Tasks:
11/14/2018 Administration Use the wsadmin tool to automate Configuration Tasks: WSADMIN Primer (with Jython) - WP101014 Includes several sample hands-on exercises. Replaces WSADMIN Primer (with JACL) - WP100421 Using Jython Scripting Language with WSADMIN - WP100963 Includes several sample scripts to do common administrative tasks. Creating new Application Servers in WAS V6 - TD104066 Includes sample jython script to automatically correct the port assignments to the WSC standard numbering scheme. Plus many InfoCenter articles… 11/14/2018

D. Availability High Availability requires: Techdocs: Planning
11/14/2018 D. Availability High Availability requires: Planning Robust Parallel Sysplex Reliable parts Fully tested in a QA server Redundant components Network Deployment (ND) Clusters on Multiple LPARs Frequent back-ups (& reliable restore procedures) Techdocs: Architecting High Availability Using WAS on z/OS - SG Planning Test, Production and Maintenance - WP100396 Handling Application Dispatch Timeouts - WP101233 WAS V7 - Dispatch Timeout Improvements - WP101374 11/14/2018

& Recovery . . . Rapid Recovery involves many aspects:
11/14/2018 & Recovery . . . Rapid Recovery involves many aspects: Quick diagnosis (automation alerts) Fix/Restore & Restart damaged parts “Disaster Recovery” sites Fully tested Fail-over scenarios Planning for Disaster Recovery - PRS1137 Starting DMGR on Another MVS Image - WP100585 Moving WebSphere Nodes Between MVS Images - PRS1536, and WP Changing the host names and system names - WP100792 11/14/2018

11/14/2018 E. Security Global Security enabled by default when you configure WebSphere for z/OS V6.1. Recommend you use LocalOS to simplify the security setup. ISPF dialogs & zPMT produce RACF commands to define protection for your WebSphere environment. WebSphere for z/OS Security class handouts (WSW07) - PRS3422 Configuring Fine-Grained Security - TD103324 RACF tips & tools for WebSphere Application Servers - TD101115 Using SERVAUTH to Protect TCP Port Usage - WP100673 Enhanced form-based authentication - TD101255 Sample J2EE App using Form Based Authentication & Style Sheet - PRS3417 Generic RACF Profiles with WebSphere on z/OS V7 – WP10427 11/14/2018

Security Techdocs, cont’d
11/14/2018 Security Techdocs, cont’d SSL, Certificates & Crypto: Introduction to SSL for z/OS users - PRS1580 Importing RACF Certificates in WAS 6.1 Distributed - PRS2854 Using Multiple Certificates with WebSphere for z/OS - TD104044 Activating z890/z990 Cryptographic Services for WAS - WP100386 Enabling Web Services H/W Encryption with WAS - WP100808 Resolving the iKeyman Corrupted Database Message - PRS2855 SSL Options in WebSphere for z/OS V6.1 – WP101213 Renewing expiring RACF certificates WAS on z/OS – PRS3584 11/14/2018

More Security Documents
11/14/2018 More Security Documents Security-related RedBooks: WAS for z/OS and Security Integration - REDP-4161 J2C Security on z/OS - REDP-4202 Java Messaging Service Security on z/OS - REDP-4203 z/OS WebSphere and J2EE Security Handbook - SG Java Security and z/OS – The Complete View – SG 11/14/2018

F. Application Deployment
11/14/2018 F. Application Deployment Sample Applications to help you practice and learn the deployment processes: SuperSnoop Servlet - TD101815 PolicyIVP J2EE Application for WAS using DB2 - TD101348 WebSphere for z/OS JMS and MDB IVP - WP100424 Deployment Tips: 64-bit Addressing Support in WebSphere for z/OS - WP100920 Temp Space Shortage Installing Large Apps - TD102662 Java & System z - DeveloperWorks White Papers - WP101291 11/14/2018

Application Tuning, Management & Debugging
11/14/2018 Application Tuning, Management & Debugging Moving Applications to WebSphere on z/OS - WP101093 Enabling the WSAD Distributed Debugger - TD101198 Enabling the WSAD Application Profiler - TD101199 Log4j Enhancements for J2EE Applications - TD102335 JinsightLive for IBM System z – Available on AlphaWorks 11/14/2018

G. Performance Many Configuration options, Topologies, & Tuning Parms:
11/14/2018 G. Performance Many Configuration options, Topologies, & Tuning Parms: Hardware resources and configuration. Software Levels: z/OS, WAS, & Java (latest releases are best) Placement, size, & # of servers, plus threading considerations. Environmental properties and WebSphere variables Using the IBM HTTP servers Workload classification Security settings, and SSL options SMF, RMF, Performance monitoring & workload simulation Java tuning, JVM heap size, and garbage collection. Tracing and other performance trouble-shooting tools. Application design considerations. TCP/IP, DB2, CICS, IMS, MQ subsystems. 11/14/2018

Performance Tuning Papers
11/14/2018 Performance Tuning Papers Performance Engineering & Tuning for WAS on z/OS - PRS2494 Performance and tuning tips for WAS on z/OS - TD103036 Optimizing WebSphere for z/OS Performance - WP100558 Application Debugging and Profiling - WP100250 Diagnosing Performance Problems on WAS for z/OS - WP100678 Large Memory Performance Studies – WP101157 Classify WAS Control Region in WLM OMVS rules - TD102730 Finding CPU Usage in your applications - TD102454 SMF Servlet Filter for WebSphere V6.1 on z/OS - WP101301 Summarizing SMF 120 records - PRS752 SMF 120 browser for WAS V7 WP101342 Threads and excessive CPU Consumption in WebSphere on z/OS - WP101474 11/14/2018

WLM Advanced Topics for WAS on z/OS - PRS3317
11/14/2018 WLM Advanced Topics for WAS on z/OS - PRS3317 WLM & WAS Interaction & Dependencies Control Region / Servant Region Structure Managing Threads, Servants, Servers & Clusters Server Failover & Continuous System Operation Work Classification – Transaction Classes & WLM Rules Tuning Recommendations & Best Practices WLM Settings: Service Classes, Report Classes & Resource Groups SMF Settings and RMF Tools Monitoring the Health of WebSphere & WLM RMF Workload Activity Reports & Monitor III SDSF & MVS Operator Commands for WebSphere & WLM WLM Commands, Monitors & Tools Misc. Topics Capping & Controlling WebSphere Workload License Charges WLM/WAS Start-up & Routing Options 11/14/2018

New SMF 120 Records WebSphere for z/OS creates SMF 120 records.
Issues with prior versions of WebSphere for z/OS: Insufficient user/request information for Chargeback Not extendable, Not dynamically controlled Costly to record WebSphere Version 7 introduces new subtype-9 Dynamically enabled/disabled More information for chargeback Bytes transferred, Elapsed Times, CP, zAAP, zIIP times Low overhead Extendable with User inserted sections “Overview of the WAS SMF Record 120-9”– WP101342 WAS V7 SMF Summary Browser available from: (Select “SMF Browser for WAS for z/OS V5 and V6”) 11/14/2018

Performance & Capacity Planning
11/14/2018 Performance & Capacity Planning Education Available: IBM Training course ‘Maximizing WebSphere Performance on z/OS’ (OZ850). Capacity Planning Contact your IBM Rep to use the zPSG, zSeries processor sizing for new applications. For zAAP capacity projections, see Obtaining the zAAP Usage Estimation Information - WP100431 zAAP Estimation w/ Java5 & WAS for z/OS V6.1 - TD103460 11/14/2018

H. Problem Determination
11/14/2018 H. Problem Determination Good “PD” isn’t an exact science; It’s based on a thorough understanding of WebSphere & z/OS, experiences (usually unsuccessful), pattern recognition, contacts & ability to use many tools. Your best “tools” are your brain, ability to search many information sources, and communication with other subject-matter “experts.” Tools: Browsers, Editors, FTP clients, telnet clients, ISPF, SDSF, MXI, Commands, SPUFI, Skills: UNIX, vi, shell scripting, jython, jacl, MVS, TSO, ISPF, SDSF 11/14/2018

PD Documentation InfoCenter: Troubleshooting and support
11/14/2018 PD Documentation InfoCenter: Troubleshooting and support Overview and new features How do I?... Troubleshooting Debugging applications Adding logging and tracing to your application Diagnosing problems (using diagnosis tools) Accessing the Support site Redbooks & Redpapers: Problem Determination for WebSphere for z/OS SG Problem Determination Methodology for WebSphere REDP6001 Problem Symptoms in WebSphere for z/OS REDP6002 Problem Avoidance for WebSphere App. Server REDP6003 WAS for z/OS Problem Determination Means & Tools REDP6880 11/14/2018

Summary There is a great deal of information available.
11/14/2018 Summary There is a great deal of information available. Trick is to find the right document quickly! Become familiar with the information sources. InfoCenter Techdocs Take the time to READ! Experiment with your own system. Know whom to call ;-) Turn this: into This: 11/14/2018

Questions ? Suggestions for future Techdocs? Send an e-mail to:
or 11/14/2018

11/14/2018 WSC Guidelines for a Healthy WebSphere Application Server Runtime on z/OS Techdoc TD104172, May 2009 There are no real “Speaker Notes” with.

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11/14/2018 WSC Guidelines for a Healthy WebSphere Application Server Runtime on z/OS Techdoc TD104172, May 2009 There are no real “Speaker Notes” with.

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