EMC® Compatibility Features for IBM Copy Services on z/OS Version 1.2 • Compatible Peer (PPRC) • Compatible Extended (XRC) • Compatible Native Flash (FlashCopy) Copyright © 2016 EMC Corporation. All rights reserved. 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 State and other countries. All other trademarks used herein are the property of their respective owners. For the most up-to-date regulator document for your product line, go to EMC Online Support (https://support.emc.com). Part number H11173 2 EMC Compatibility Features for IBM Copy Services on z/OS TechBook Contents Preface Chapter 1 Introduction Overview ............................................................................................ 22 Assumptions ...................................................................................... 24 Terminology ............................................................................................25 GDPS deployment ............................................................................ 26 Compatibility ..................................................................................... 27 Enginuity features ............................................................................... 28 Compatible copy services technologies ......................................... 29 GDPS ........................................................................................... 29 Compatibility features............................................................... 30 Valid combinations for compatibility features ............................... 31 Chapter 2 GDPS Business Continuity Solutions GDPS overview ................................................................................. 34 GDPS/PPRC ...................................................................................... 35 GDPS/HM ......................................................................................... 37 GDPS/XRC ........................................................................................ 38 GDPS/MzGM .................................................................................... 39 Unsupported GDPS architectures .................................................... 40 Common features of GDPS versions .............................................. 41 Supported GDPS Releases ........................................................ 41 NetView and system automation for z/OS components ..... 41 NetView operator ...................................................................... 41 SCRIPT language with TAKEOVER, CONTROL, and BATCH scripts ........................................................................... 42 GEOPARM and GEOXPARM storage policy definitions .... 43 EMC Compatibility Features for IBM Copy Services on z/OS TechBook 3 Contents Policy Data Base (PDB) ............................................................. 43 Sysplex ........................................................................................ 44 K systems .................................................................................... 44 Documentation .................................................................................. 45 Advanced Copy Services .......................................................... 45 GDPS manuals ........................................................................... 45 Chapter 3 EMC Compatible Peer (PPRC) PPRC overview ................................................................................. 48 PPRC components ............................................................................ 49 SRDF/S operations and Compatible Peer. .................................... 51 External manifestation of the SRDF/S GROUP name .......... 51 Supported and non-supported PPRC modes ............................... 52 PPRC operation ................................................................................. 53 Supported PPRC features................................................................... 57 Metro Mirror and Global Copy ............................................... 57 PPRC Consistency Group ......................................................... 57 CRIT(Y) ....................................................................................... 59 PPRC/FlashCopy Consistency Group Timeout .................... 59 Volume pairs .............................................................................. 60 PPRC pathing ............................................................................. 60 Dependent write consistency ................................................... 63 CGROUP FREEZE/RUN and the preservation of dependent write consistency ....................................................................... 64 Failover Failback (FO/FB) ........................................................ 64 Link failure warning ................................................................. 65 MIDAW and PPRC .................................................................... 65 Query storage controller status................................................ 65 Summary event notification for PPRC suspends .................. 66 Storage controller health message ........................................... 67 CQUERY LINKINFO ................................................................ 67 PPRC TSO commands ...................................................................... 68 Other PPRC interfaces ...................................................................... 69 Compatible Peer versus SRDF/S and Adaptive Copy ................ 70 FAST and Compatible Peer ............................................................. 70 Compatible Peer limitations ............................................................ 70 Designing the solution for z/OS ..................................................... 71 PPRC Symmetrix system configuration specifications ......... 71 Volume Map PARMs ................................................................ 72 PPRC connectivity ..................................................................... 72 Security authorization ............................................................... 73 EMC PPRC link definition ........................................................ 73 4 EMC Compatibility Features for IBM Copy Services on z/OS TechBook Contents Conversion from SRDF/S to PPRC emulation .............................. 74 Chapter 4 GDPS/PPRC GDPS/PPRC and GDPS/HyperSwap Manager (GDPS/HM) .. 76 GDPS/PPRC components ................................................................ 75 EMC DASD Support Matrix for GDPS/PPRC .............................. 79 GDPS/PPRC storage management functions ............................... 82 GEOPARM ................................................................................................ 83 Autonomic policies and GEOPLEX ................................................ 84 GEOPLEX options PRIMARYFAILURE ................................. 84 GEOPLEX options PPRCFAILURE ......................................... 85 Policy implications and remote copy definition .................... 87 FREEZE autonomic operation ......................................................... 88 Planned FREEZE ........................................................................ 88 GDPS/PPRC DASD script keywords ..................................... 89 Sharing VMAX DASD subsystems ................................................. 90 HyperSwap autonomic operations (unplanned HyperSwap) ... 91 Requirements .............................................................................. 91 GDPS with HyperSwap architecture ....................................... 93 Planned HyperSwap .................................................................. 96 ............................................................. HyperSwap RESYNCH 97 HyperSwap SUSPEND .............................................................. 97 HyperSwap TERMINATE ........................................................ 97 GDPS/PPRC DASD SWITCH HYPERSWAP SCRIPT keyword....................................................................................... 97 GDPS/HM HYPERSW commands for HyperSwap and recovery operations ................................................................... 98 FAST and HyperSwap ............................................................... 98 GDPS/PPRC DASD subsystem components ................................ 99 HCD definition with GDPS/PPRC .......................................... 99 GDPS K system LOCAL DASD resource ............................... 99 GDPS/PPRC utility device ..................................................... 100 LCU design ............................................................................... 100 GDPS/PPRC GEOPARM specification ........................................ 102 GEOPARM specifications unique to Symmetrix systems...102 GEOPARM coding ................................................................... 103