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Karan Singh Marimar Grau Peter Hoyle Jonghak Kim Jukka Myyryläinen Mark Pope Jean Sylvester Francisco Vilaca
ibm.com/redbooks
International Technical Support Organization
FICON Planning and Implementation Guide
March 2012
SG24-6497-03 Note: Before using this information and the product it supports, read the information in “Notices” on page ix.
Fourth Edition (March 2012)
This edition applies to FICON features defined as CHPID type FC, supporting native FICON, High Performance FICON for System z (zHPF), and FICON Channel-to-Channel (CTC) on IBM zEnterprise 196, zEnterprise 114 and System z10 servers.
© Copyright International Business Machines Corporation 2012. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents
Notices ...... ix Trademarks ...... x
Preface ...... xi The team who wrote this book ...... xi Now you can become a published author, too! ...... xiii Comments welcome...... xiv Stay connected to IBM Redbooks ...... xiv
Part 1. Understanding FICON ...... 1
Chapter 1. Introduction to FICON ...... 3 1.1 Basic Fibre Channel terminology ...... 4 1.1.1 Node ...... 6 1.1.2 Port ...... 6 1.1.3 Switched fabric ...... 6 1.1.4 FC link...... 7 1.1.5 World Wide Name...... 7 1.1.6 Open exchanges...... 8 1.2 System z FICON ...... 9 1.2.1 High Performance FICON for System z (zHPF) ...... 10 1.2.2 FICON-to-ESCON solutions ...... 13 1.2.3 FICON operating modes and topologies...... 14 1.2.4 Platform and name registration in FICON channel ...... 15 1.2.5 Terms used with FICON Directors ...... 16 1.2.6 Terms used with the Input/Output architecture ...... 16 1.3 z/OS discovery and auto-configuration (zDAC) ...... 18
Chapter 2. System z FICON technical description...... 21 2.1 Using the FICON architecture for I/O operations ...... 22 2.1.1 FICON initialization ...... 22 2.1.2 FICON I/O request ...... 24 2.1.3 Command mode ...... 28 2.1.4 Transport mode...... 28 2.1.5 Missing Interrupt Handler...... 31 2.1.6 zHPF Temporary Logout...... 32 2.1.7 Modified Indirect Data Address Word ...... 32 2.1.8 Transport Indirect Data Address Word ...... 33 2.1.9 Open exchange...... 34 2.1.10 Buffer-to-buffer credit usage in FICON ...... 34 2.1.11 Extended distance FICON ...... 35 2.1.12 FICON link incident reporting ...... 36 2.2 System z FICON feature support ...... 37
Chapter 3. FICON Director technical description...... 45 3.1 The role of the FICON Director ...... 46 3.1.1 Switched configuration ...... 46 3.1.2 Cascaded configuration ...... 47 3.1.3 Basic components of a FICON Director ...... 48
© Copyright IBM Corp. 2005, 2006, 2009. All rights reserved. iii 3.1.4 Basic functions of a FICON Director ...... 50 3.2 Qualified FICON Directors ...... 56 3.2.1 IBM System Storage SAN b-type family components...... 57 3.2.2 IBM System Storage SAN b-type family functions ...... 63 3.2.3 Cisco MDS 9500 Series ...... 67 3.2.4 Functions of the Cisco MDS 9500 Series ...... 71
Part 2. Planning the FICON environment ...... 75
Chapter 4. Planning the FICON environment ...... 77 4.1 Structured approach for planning ...... 78 4.2 Documentation ...... 80 4.3 Requirements ...... 81 4.4 Context ...... 82 4.4.1 Migrating from ESCON to FICON ...... 82 4.4.2 Moving to a high bandwidth environment (FICON Express8/8S) ...... 83 4.4.3 Migrating from a single site to a multi-site environment ...... 84 4.4.4 Implementing a new FICON environment...... 85 4.5 Topologies and supported distances ...... 85 4.5.1 Point-to-point...... 86 4.5.2 Switched ...... 86 4.5.3 Cascaded ...... 87 4.5.4 Extended distance ...... 88 4.6 Convergence...... 90 4.6.1 Intermix fabric ...... 90 4.6.2 Fabric security...... 91 4.6.3 High integrity ...... 92 4.6.4 Zoning ...... 93 4.7 Management ...... 94 4.7.1 Command-line interface ...... 94 4.7.2 Element management...... 95 4.7.3 Fabric management ...... 95 4.7.4 Storage management initiative specification...... 95 4.7.5 System z management for FICON Directors...... 96 4.8 Virtualization and availability ...... 97 4.8.1 System z ...... 97 4.8.2 Control unit ...... 100 4.8.3 FICON Director ...... 101 4.9 Performance ...... 102 4.9.1 Frame pacing ...... 103 4.9.2 Extended distance FICON ...... 104 4.9.3 Multiple allegiance ...... 105 4.9.4 Parallel Access Volume and HyperPAV ...... 105 4.9.5 Modified Indirect Data Address Word ...... 106 4.9.6 High Performance FICON...... 107 4.9.7 Bandwidth management ...... 108 4.9.8 Traffic management ...... 111 4.9.9 Evaluation tools...... 111 4.10 Prerequisites and interoperability ...... 112 4.11 Physical connectivity ...... 113
Part 3. Configuring the FICON environment...... 117
Chapter 5. Configuring a point-to-point topology ...... 119 iv FICON Planning and Implementation Guide 5.1 Establishing a point-to-point topology ...... 120 5.2 Description of our environment ...... 120 5.3 Tasks and checklist...... 121 5.3.1 Tasks ...... 121 5.3.2 Verification checklist ...... 121 5.4 Defining the new configuration ...... 122 5.4.1 Defining the channel, CU, and storage devices ...... 123 5.4.2 Defining our configuration example using HCD ...... 123 5.4.3 Defining our configuration example using HCM ...... 128 5.4.4 How the definition looks as IOCP statements...... 134 5.4.5 Defining a FICON Channel-to-Channel (FCTC) connection ...... 135 5.5 Building and activating the IODF...... 137 5.5.1 Building the production IODF ...... 138 5.5.2 Steps to activate the production IODF ...... 141 5.6 Configuring the IBM Storage System DS8000 ...... 146 5.6.1 Connecting the fiber optic cables ...... 147 5.6.2 Configuring the channel paths and devices online ...... 147 5.6.3 Verifying the installation ...... 149
Chapter 6. Configuring a switched topology ...... 155 6.1 Establishing a switched topology ...... 156 6.2 Description of our environment ...... 156 6.3 Tasks and checklist...... 157 6.3.1 Tasks ...... 157 6.3.2 Verification checklist ...... 158 6.4 Defining the new configuration ...... 159 6.4.1 Defining the channel, CU, and storage devices ...... 159 6.4.2 Defining our configuration example using HCD ...... 160 6.4.3 Defining our configuration example using HCM ...... 166 6.4.4 How the definition looks as IOCP statements...... 175 6.4.5 Defining FICON Channel-to-Channel (FCTC) connection ...... 176 6.5 Building and activating the IODF...... 179 6.5.1 Building the production IODF ...... 179 6.5.2 Activating the production IODF ...... 182 6.6 Configuring the IBM Storage System DS8000 ...... 188 6.6.1 Configuring the FICON Director ...... 188 6.6.2 Connecting the fiber optic cables ...... 189 6.6.3 Configuring the channel path and device online ...... 189 6.6.4 Verifying the installation ...... 192
Chapter 7. Configuring a cascaded topology...... 197 7.1 Establishing a cascaded topology...... 198 7.2 Description of our environment ...... 198 7.3 Tasks and checklist...... 199 7.3.1 Tasks ...... 199 7.3.2 Verification checklist ...... 200 7.4 Defining the new configuration ...... 201 7.4.1 Defining the channel, CU, and storage devices ...... 201 7.4.2 Defining our configuration example using HCD ...... 202 7.4.3 Defining our configuration example using HCM ...... 208 7.4.4 How the definition looks as IOCP statements...... 218 7.4.5 Defining a FICON Channel-to-Channel (FCTC) connection ...... 220 7.5 Building and activating the IODF...... 227
Contents v 7.5.1 Building the production IODF ...... 227 7.5.2 Activating the production IODF ...... 230 7.6 Configuring the IBM Storage System DS8000 ...... 236 7.6.1 Configuring the FICON Directors ...... 236 7.6.2 Connecting the fiber optic cables ...... 237 7.6.3 Configuring the channel path and device online ...... 237 7.6.4 Verifying the installation ...... 240
Chapter 8. Configuring FICON Directors ...... 245 8.1 Configuration overview ...... 246 8.1.1 Configuration flowchart ...... 246 8.1.2 FICON Director management connectivity ...... 247 8.2 Installing and using IBM Network Advisor...... 248 8.2.1 Installing IBM Network Advisor ...... 249 8.2.2 Using the IBM Network Advisor ...... 259 8.3 Setting up a FICON Director ...... 262 8.3.1 Changing the IP addresses...... 262 8.3.2 Using the FICON wizard ...... 267 8.3.3 Enabling features (optional) ...... 268 8.3.4 Setting up a logical switch (optional)...... 270 8.3.5 Configuring the Domain ID and Insistent Domain ID ...... 275 8.3.6 Setting up PBR, IOD, and DLS ...... 277 8.3.7 Enabling the Control Unit Port ...... 279 8.3.8 Changing the port type and speed ...... 282 8.3.9 Changing buffer credits...... 286 8.3.10 Setting up the Allow/Prohibit Matrix (optional) ...... 288 8.3.11 Setting up zoning (optional) ...... 290 8.3.12 Configuring Port Fencing (optional) ...... 295 8.4 Setting up a cascaded topology ...... 298 8.4.1 Setting up Inter-Switch Links ...... 299 8.4.2 Setting up a high integrity fabric ...... 303 8.5 FICON Directors in an extended distance environment ...... 311 8.6 FICON Directors in an intermixed environment...... 313 8.7 Channel swap ...... 313 8.8 Backing up Director configuration data ...... 314 8.9 Backing up IBM Network Advisor configuration data ...... 315
Part 4. Managing the FICON environment ...... 317
Chapter 9. Monitoring the FICON environment ...... 319 9.1 System Activity Display ...... 320 9.2 Resource Measurement Facility monitoring ...... 321 9.3 Introduction to performance monitoring ...... 321 9.4 Introduction to Resource Measurement Facility ...... 322 9.4.1 Data gathering ...... 322 9.4.2 RMF reporting ...... 322 9.5 RMF example reports ...... 323 9.5.1 DASD Activity report ...... 323 9.5.2 I/O Queueing report ...... 325 9.5.3 Channel Path Activity report ...... 326 9.5.4 FICON Director Activity report...... 328 9.5.5 Enterprise Disk Systems Link Statistics report ...... 328 9.5.6 General performance guidelines...... 330 9.5.7 Tape ...... 331 vi FICON Planning and Implementation Guide 9.6 IBM Network Advisor performance monitor...... 332 9.6.1 Real-Time Performance Reporting ...... 332 9.6.2 Historical performance reporting...... 335 9.6.3 End-to-End Monitoring ...... 342 9.6.4 Top Talker Monitoring ...... 343 9.7 Web Tools Performance Monitor ...... 346
Chapter 10. Debugging FICON problems ...... 349 10.1 Preparing for problem determination activities ...... 350 10.1.1 Using the D M - Display Matrix command...... 350 10.1.2 Creating a CONFIG member ...... 350 10.1.3 IBM Health Checker: Command Response (CMR) Time Function...... 351 10.1.4 Controlling planned and unplanned changes ...... 351 10.1.5 Tracking some I/O messages ...... 352 10.2 Problem determination approach for FICON...... 353 10.3 Diagnostic procedure guideline...... 355 10.4 Environmental record, editing, and printing program ...... 357 10.5 FICON link incident reporting ...... 357 10.6 FICON Purge Path Extended ...... 357 10.7 Helpful z/OS commands ...... 360 10.8 Node descriptor...... 362 10.8.1 View Node Descriptors from HMC/SE ...... 362 10.8.2 View Node Descriptors from IBM Network Advisor...... 362 10.9 IBM Network Advisor PD Tools...... 364 10.9.1 Logs ...... 364 10.9.2 SupportSave ...... 365 10.9.3 Port Error Statistics ...... 368 10.9.4 Fibre Channel (FC) Troubleshooting...... 370 10.9.5 Helpful Command Line Interface commands ...... 375 10.10 HMC PD Tools ...... 377 10.11 Common z/OS FICON error message: Interpretation ...... 377
Part 5. Appendixes ...... 395
Appendix A. Example: Planning workflow ...... 397
Appendix B. Configuration worksheets ...... 405
Appendix C. Configuration and definition tools...... 409 Hardware Configuration Definition ...... 410 Hardware Configuration Manager...... 410 CHPID Mapping Tool ...... 410 I/O Configuration Program ...... 411 Stand-Alone I/O Configuration Program ...... 411 IOCP statements and keywords used for FICON ...... 412
Appendix D. Configuring the DS8000 for FICON ...... 415 DS8000 licenses for FICON...... 416 Configuring DS8000 I/O ports ...... 417 I/O port layout ...... 417 Configuring I/O ports using the DS8000 GUI ...... 422
Appendix E. Using HMC and SE for problem determination information ...... 425 E.1 HMC and SE information ...... 426 E.1.1 HMC and SE versions and user IDs...... 426
Contents vii E.1.2 HMC and SE default user IDs and passwords ...... 427 E.1.3 Logging on to the HMC and SE ...... 427 E.2 Displaying CPC resource information...... 429 E.2.1 Displaying the System z CPC details panel ...... 429 E.2.2 Finding a physical resource on a System z server ...... 431 E.3 Displaying individual FICON channel information...... 435 E.3.1 FICON icon...... 435 E.3.2 Displaying detailed FICON channel information...... 436 E.3.3 Displaying the channel problem determination task panels ...... 438 E.4 Displaying FICON IFCC and Other errors ...... 453 E.4.1 Displaying the IFCC and Other panel...... 454 E.4.2 FICON IFCC detected error ...... 454 E.4.3 FICON ELS (Extended Link Services) error detected error ...... 455 E.4.4 FICON timeout error ...... 457 E.4.5 FICON External error ...... 459 E.4.6 Channel Hardware Failure ...... 461 E.4.7 Purge Path Extended Log ...... 461 E.5 Displaying the Fibre Channel Analyzer panel...... 466 E.6 Displaying the System I/O Configuration Analyzer panel ...... 469
Appendix F. Useful z/OS commands ...... 471 Using z/OS commands for problem determination...... 472 Displaying system status using D M=CPU ...... 472 Displaying additional z/OS information using D IPLINFO ...... 474 Displaying the I/O configuration using D IOS,CONFIG...... 475 Displaying HSA usage using D IOS,CONFIG(HSA) ...... 475 Display units command D U ...... 476 D U,,,dddd,1 ...... 477 D M=DEV(dddd) ...... 480 DEVSERV command - DS P,dddd,n...... 484
Appendix G. Adding FICON CTC connections...... 489
Related publications ...... 493 IBM Redbooks ...... 493 Other publications ...... 494 Online resources ...... 495 How to get Redbooks...... 495 Help from IBM ...... 495
Index ...... 497
viii FICON Planning and Implementation Guide Notices
This information was developed for products and services offered in the U.S.A.
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© Copyright IBM Corp. 2012. All rights reserved. ix Trademarks
IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. These and other IBM trademarked terms are marked on their first occurrence in this information with the appropriate symbol (® or ™), indicating US registered or common law trademarks owned by IBM at the time this information was published. Such trademarks may also be registered or common law trademarks in other countries. A current list of IBM trademarks is available on the Web at http://www.ibm.com/legal/copytrade.shtml
The following terms are trademarks of the International Business Machines Corporation in the United States, other countries, or both:
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x FICON Planning and Implementation Guide Preface
This IBM® Redbooks® publication covers the planning, implementation, and management of IBM System z® FICON® environments. It discusses the FICON and Fibre Channel architectures, terminology, and supported topologies.
The book focuses on the hardware installation and the software definitions that are needed to provide connectivity to FICON environments.You will find configuration examples required to support FICON control units, FICON Channel-to-Channel (FCTC), and FICON Directors. It also discusses utilities and commands that are useful for monitoring and managing the FICON environment.
The target audience for this document includes IT Architects, data center planners, SAN administrators, and system programmers who plan for and configure FICON environments. You are expected to have a basic understanding of IBM zEnterprise™ and System z10® hardware, HCD, HCM or IOCP, and a broad understanding of the Fibre Channel and FICON architectures.
The team who wrote this book
This book was produced by a team of specialists from around the world working at the International Technical Support Organization, Poughkeepsie Center.
Karan Singh is a Project Leader at the IBM ITSO GCS organization in Poughkeepsie, New Yo r k .
Marimar Grau is a Senior IBM z/OS® IT Specialist in IBM Spain. She has 17 years of experience in IBM mainframe environment. She has worked at IBM for the last 12 years. She has experience in the z/OS Operating system, related software, and IBM Hardware solutions. She is currently working as a trusted advisor at one of the biggest financial institutions of Spain. She provides Technical support on IBM HW Solutions: IBM system z196 and z10, Brocade FICON Director, IBM Tape solution VE TS7740, and 3584 Tape Library.
Peter Hoyle works for IBM performing System z configuration in Australia. He has more than 30 years experience in the IT industry, including 20 years in IBM mainframe server configuration management and design. He has worked at IBM since 1999. His areas of expertise include HCM and HCD and configuration implementation solution design and documentation. He also co-authored IBM System z9® Configuration Setup, IBM System z10 Enterprise Class Configuration Setup, I/O Configuration using z/OS HCD and HCM, and IBM zEnterprise System Configuration Setup.
Jonghak Kim is a Senior Product Services-System Service Representative at the Global Technical Services in Seoul, Korea. He joined IBM in 1986 to support System z and Mainframe I/O products.He joined Technical Support Group (TSG) in 1997 as a System z second-level supporter and has led the local second-level support team for System z/p/i and Storage platforms in Korea since 2002. His main areas of expertise are System z Hardware, FICON Directors and Fiber Connectivity, and IBM Parallel Sysplex®.
Jukka Myyryläinen is a Senior IT Specialist in IBM Finland, providing storage implementation services, data migration services, and technical support to customers. He has 25 years of experience with IBM in the storage field. His areas of expertise include IBM
© Copyright IBM Corp. 2012. All rights reserved. xi high-end disk and tape systems and SAN. He co-authored several IBM Redbooks publications on IBM enterprise storage systems. He has a Masters degree in Mathematics from the University of Helsinki.
Mark Pope works for IBM as a Hardware Support Specialist within the MTS High-Availability Domain in the UK. He joined IBM in 1976 and was a Large Systems CE until 1991 when he joined the Support Centre. His responsibilities are providing hardware support to CEs and customers on System z and High-Availability Storages Products within the UK.
Jean Sylvester joined IBM in 2002 in IOS/HCD/HCM Level 2 Support. She currently works on the IBM zSeries® microcode patch team in Poughkeepsie, NY, USA. She has a Masters degree in Computer Science from Marist College, in Poughkeepsie. Previously she co-authored another IBM Redbooks publication, I/O Configuration using z/OS HCD and HCM.
Francisco Vilaca joined IBM Brazil in 2009 as a System Specialist at IBM Global Technology Services®. He has 20 years of professional background in IT and telecommunication. He has a Bachelor of Science degree in Electrical Engineering, a Major in Telecommunication Engineering, and is highly experienced with SAN and Storage technologies. Francisco is a Brocade Certified Fabric Professional (BCFP), Brocade Certified Fabric Designer (BCFD), Brocade Certified SAN Manager (BCSM), Brocade Certified Fabric Administrator (BCFA), and Brocade Certified Architect for Ficon (BCAF).
Figure 0-1 The authoring team: Jonghak Kim, Marimar Grau, Mark Pope, Jean Sylvester, Karan Singh, Francisco Vilaca, Jukka Myyryläinen, Peter A. Hoyle.
Thanks to the following people for their contributions to this project:
Bob Haimowitz, Richard Conway, Bill White International Technical Support Organization, Poughkeepsie Center
Connie Beuselinck IBM System z Product Planning, Poughkeepsie
xii FICON Planning and Implementation Guide Charlie Hubert, Brian Jacobs, Sam Mercier IBM Vendor Solutions Connectivity (VSC) Lab, Poughkeepsie
Lou Ricci IBM Systems Software Development, Poughkeepsie
Jack Consoli Systems Engineer, Brocade Communications Systems, Inc.
Thanks to the authors of the previous editions of this book. Authors of the first edition, FICON Implementation Guide, published in February 2005, were: Hans-Peter Eckam, IBM Germany Iain Neville, IBM UK Authors of the second edition, FICON Implementation Guide, published in January 2006, were: Hans-Peter Eckam, IBM Germany Wolfgang Fries, IBM Germany Iain Neville, IBM UK Authors of the third edition, FICON Implementation Guide, published in September 2009, were: Bill White, IBM USA Wolfgang Fries, IBM Germany Brian Hatfield, IBM USA Michal Holenia, IBM Solvakia Dennis Ng, IBM USA Ewerson Palacio, IBM Brazil René Petry, IBM Germany
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Preface xiii Comments welcome
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