Z/OS Migrator Version 4.2 Product Guide
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EMC® z/OS Migrator Version 4.2 Product Guide REV 01 Copyright © 2005 - 2013 EMC Corporation. All rights reserved. Published in the USA. Published May, 2013 EMC believes the information in this publication is accurate as of its publication date. The information is subject to change without notice. The information in this publication is provided as is. EMC Corporation makes no representations or warranties of any kind with respect to the information in this publication, and specifically disclaims implied warranties of merchantability or fitness for a particular purpose. Use, copying, and distribution of any EMC software described in this publication requires an applicable software license. EMC2, EMC, and the EMC logo are registered trademarks or trademarks of EMC Corporation in the United States and other countries. All other trademarks used herein are the property of their respective owners. For the most up-to-date regulatory document for your product line, go to the technical documentation and advisories section on the EMC online support website. 2 EMC z/OS Migrator V4.2 Product Guide Change Summary This document is an update to the EMC z/OS Migrator Product Guide. presents a summary of changes for this document. Note: Revised text within the book is indicated by red change bars in the left margins. Summary of Changes for z/OS Migrator Version 4.2 z/OS Migrator no longer requires the inclusion of a z/OS Migrator License Feature Code (LFC) within the MFE/SCF INI (initialization) deck. In prior releases, this code unlocked the ability of MFE/SCF to provide services for z/OS Migrator. With the release of version 4.2, this is handed automatically, provided the proper Mainframe Enablers (MFE) service is applied within the intended environment. Refer to the section, “Step 6: Updates for z/OS Migrator licensed feature code (LFC)” on page 54 in Chapter 2, z/OS Migrator Installation, for more information regarding this enhancement. z/OS Migrator now provides for the ability to route pertinent MFE/SCF AutoSwap console messages, from both the owning and the agent MFE/SCF tasks, back to the owning z/OS Migrator instance as an aid to managing the returned and tracked information when volume and logical migration groups are activated. A new CONFIG file options parameter, ROUTEMSG/NOROUTEMSG (default is ROUTEMSG), is provided to determine whether certain AutoSwap messages are routed and subsequently displayed in the started task log of the owning z/OS Migrator instance. Refer to the section entitled “Routing Messages to the Migrator Owning Instance” on page 324 in Appendix F, Interactions with EMC Software Products for more information regarding this enhancement. z/OS Migrator has new rules and options for supporting non-EMC devices, such as IBM, Hitachi, StorageTek, or some other third party DASD provider. The use and availability of non-EMC device support depends on the type of z/OS Migrator group planned, and also on whether the devices are intended to be swapped as a final action. Explanations for the rules concerning the use of non-EMC devices are contained in Appendix H, “Using non-EMC devices with z/OS Migrator” on page 341. Text corrections, command and parameter updates, and revised explanations are also included in this manual update. EMC z/OS Migrator V4.2 Product Guide 3 4 EMC z/OS Migrator V4.2 Product Guide CONTENTS Preface Chapter 1 Overview Data migration challenge ............................................................................ 22 Introducing z/OS Migrator........................................................................... 22 Technical benefits of z/OS Migrator and logical migration ..................... 22 Business benefits of z/OS Migrator logical migration ............................ 23 Migration technology ............................................................................ 24 Volume mirror and Volume migrator ............................................................ 25 Volume migrator ................................................................................... 25 Volume mirror ....................................................................................... 26 How z/OS Migrator fits in your environment ................................................ 26 z/OS Migrator components ................................................................... 27 Multi-LPAR considerations .................................................................... 29 Parallel Access Volume (PAV) status...................................................... 30 Control interfaces.................................................................................. 31 Supported storage subsystems and dataset types....................................... 32 Operating system support ..................................................................... 33 Restrictions........................................................................................... 33 Chapter 2 z/OS Migrator Installation Preinstallation checklist .............................................................................. 38 Hardware and software requirements.................................................... 38 Reserve handling requirements............................................................. 40 z/OS Migrator storage requirements...................................................... 42 Downloading maintenance updates ...................................................... 43 Installing/upgrading EMCSCF (Mainframe Enablers).............................. 44 Gathering z/OS Migrator installation information .................................. 46 z/OS Migrator installation steps.................................................................. 48 Step 1. Load ZOSMvrm.XMITLIB to disk ................................................. 48 Step 2. Run ZOSMvrm.XMITLIB(#EXTRACT)............................................. 50 Step 3. Customize the RIMLIB JCL .......................................................... 51 Step 4. Run the installation jobs ........................................................... 54 Step 5. Cleanup .................................................................................... 54 Step 6: Updates for z/OS Migrator licensed feature code (LFC) .............. 54 Step 7: Apply maintenance ................................................................... 55 Step 8: Shut down and restart Mainframe Enablers ............................... 56 Step 9: Prepare to execute z/OS Migrator.............................................. 56 Step 10: Allocate the z/OS Migrator system information dump dataset . 58 Step 11: Allocate the z/OS Migrator database....................................... 59 Step 12: Configuring the z/OS Migrator server parameters .................... 61 Step 13: Customize and run the z/OS Migrator server............................ 62 Step 14. Prior to first execution, specify parameters in SAMPLIB............ 67 Step 15: Starting and stopping the z/OS Migrator server ....................... 67 Chapter 3 Logical Migration Planning Plan the migration....................................................................................... 70 EMC z/OS Migrator V4.2 Product Guide 5 Contents Establish a migration team.................................................................... 70 Pre-migration tasks ............................................................................... 70 Pre-migration planning checklist ........................................................... 72 Migration action item checklist ............................................................. 73 Migration considerations ............................................................................ 73 z/OS Migrator dataset selection planning ............................................. 74 Datasets allocated after activation ........................................................ 78 Dataset extent and multi-volume dataset handling................................ 78 Merging volumes and VTOC sizing considerations................................. 78 Multi-LPAR considerations .................................................................... 79 Reserve handling requirements............................................................. 79 Restrictions on storage subsystems and dataset types.......................... 83 Systems managed storage (DFSMS) allocation ...................................... 85 Migrating VSAM clusters ....................................................................... 87 Migrating DB2 cluster datasets ............................................................. 87 Hard-coded volume references.............................................................. 87 Catalog structure................................................................................... 87 Small versus large migration groups...................................................... 87 Suspending/resuming data migrations ................................................. 88 Chapter 4 Volume Mirror/Migrator Planning Overview..................................................................................................... 90 Volume Mirror ............................................................................................. 90 Volume group creation .......................................................................... 91 Activation, monitoring, and mirroring .................................................... 93 Suspend and resume ............................................................................ 94 Multi-server