Transcription
EMC Compatibility Featuresfor IBM Copy Services on z/OSVersion 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 issubject to change without notice.THE INFORMATION IN THIS PUBLICATION IS PROVIDED “AS IS.” EMC CORPORATION MAKES NOREPRESENTATIONS OR WARRANTIES OF ANY KIND WITH RESPECT TO THE INFORMATION IN THISPUBLICATION, AND SPECIFICALLY DISCLAIMS IMPLIED WARRANTIES OF MERCHANTABILITY ORFITNESS FOR A PARTICULAR PURPOSE.Use, copying, and distribution of any EMC software described in this publication requires an applicablesoftware license.EMC2, EMC, and the EMC logo are registered trademarks or trademarks of EMC Corporation in the UnitedState 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 H111732EMC Compatibility Features for IBM Copy Services on z/OS TechBook
ContentsPrefaceChapter 1IntroductionOverview . 22Assumptions . 24Terminology .25GDPS deployment . 26Compatibility . 27Enginuity features . 28Compatible copy services technologies . 29GDPS . 29Compatibility features. 30Valid combinations for compatibility features . 31Chapter 2GDPS Business Continuity SolutionsGDPS overview . 34GDPS/PPRC . 35GDPS/HM . 37GDPS/XRC . 38GDPS/MzGM . 39Unsupported GDPS architectures . 40Common features of GDPS versions . 41Supported GDPS Releases . 41NetView and system automation for z/OS components . 41NetView operator . 41SCRIPT language with TAKEOVER, CONTROL, andBATCH scripts . 42GEOPARM and GEOXPARM storage policy definitions . 43EMC Compatibility Features for IBM Copy Services on z/OS TechBook3
ContentsPolicy Data Base (PDB) . 43Sysplex . 44K systems . 44Documentation . 45Advanced Copy Services . 45GDPS manuals . 45Chapter 3EMC Compatible Peer (PPRC)PPRC overview . 48PPRC components . 49SRDF/S operations and Compatible Peer. . 51External manifestation of the SRDF/S GROUP name . 51Supported and non-supported PPRC modes . 52PPRC operation . 53Supported PPRC features. 57Metro Mirror and Global Copy . 57PPRC Consistency Group . 57CRIT(Y) . 59PPRC/FlashCopy Consistency Group Timeout. 59Volume pairs . 60PPRC pathing . 60Dependent write consistency . 63CGROUP FREEZE/RUN and the preservation of dependentwrite consistency . 64Failover Failback (FO/FB) . 64Link failure warning . 65MIDAW and PPRC. 65Query storage controller status. 65Summary event notification for PPRC suspends . 66Storage controller health message . 67CQUERY LINKINFO . 67PPRC TSO commands . 68Other PPRC interfaces . 69Compatible Peer versus SRDF/S and Adaptive Copy . 70FAST and Compatible Peer . 70Compatible Peer limitations . 70Designing the solution for z/OS. 71PPRC Symmetrix system configuration specifications. 71Volume Map PARMs . 72PPRC connectivity . 72Security authorization . 73EMC PPRC link definition. 734EMC Compatibility Features for IBM Copy Services on z/OS TechBook
ContentsConversion from SRDF/S to PPRC emulation. 74Chapter 4GDPS/PPRCGDPS/PPRC and GDPS/HyperSwap Manager (GDPS/HM) . 76GDPS/PPRC components . 75EMC DASD Support Matrix for GDPS/PPRC . 79GDPS/PPRC storage management functions . 82GEOPARM . 83Autonomic policies and GEOPLEX . 84GEOPLEX options PRIMARYFAILURE . 84GEOPLEX options PPRCFAILURE . 85Policy implications and remote copy definition . 87FREEZE autonomic operation . 88Planned FREEZE . 88GDPS/PPRC DASD script keywords . 89Sharing VMAX DASD subsystems . 90HyperSwap autonomic operations (unplanned HyperSwap) . 91Requirements . 91GDPS with HyperSwap architecture . 93Planned HyperSwap . 96HyperSwap RESYNCH . 97HyperSwap SUSPEND . 97HyperSwap TERMINATE . 97GDPS/PPRC DASD SWITCH HYPERSWAP SCRIPTkeyword. 97GDPS/HM HYPERSW commands for HyperSwap andrecovery operations . 98FAST and HyperSwap. 98GDPS/PPRC DASD subsystem components . 99HCD definition with GDPS/PPRC. 99GDPS K system LOCAL DASD resource . 99GDPS/PPRC utility device . 100LCU design . 100GDPS/PPRC GEOPARM specification . 102GEOPARM specifications unique to Symmetrix systems.102GEOPARM coding . 103GEOPLEX links . 104GEOPLEX MIRROR . 105GEOPLEX NONSHARE. 106Activation of a new GEOPARM (CONFIG) . 107FlashCopy with GDPS/PPRC . 108Justification . 108EMC Compatibility Features for IBM Copy Services on z/OS TechBook5
ContentsDefinition . 109Operation . 109With HyperSwap deployments . 110Remote Pair FlashCopy . 110Symmetrix systems compatible feature licensing in GDPS/PPRC111CFHINT considerations .112GDPS/PPRC operations .113GDPS/PPRC mechanisms . 113Panel operations (GDPS operator) . 114GDPS/PPRC DASD BATCH SCRIPT VPCEXIT2 .115Locating PPRC error messages within GDPS/PPRC .116Search NetView’s log for messages. 116Issuing MVS system commands from NetView. 116Help . 116GDPS/PPRC employment of alternate subchannel support withSymmetrix systems .117Validating GDPS autonomic operations . 118Unplanned FREEZE . 118Unplanned HyperSwap . 119GDPS/PPRC networking topologies . 120EMC’s role . 120GDPS topologies . 121Link budget . 121GDPS/PPRC BCRS. 122GDPS/PPRC FREEZE and GO/STOP. 124GDPS/PPRC with HyperSwap . 126Chapter 5Compatible Extended (XRC)Compatible Extended (XRC) overview . 130Features and components . 130XRC components . 132XRC planning overview checklist . 137XRC operations . 139XRC operations overview. 139Extended Remote copy data flow. 140SDM Remote copy operations . 141XRC Copy operations. 141XRC MONITOR I/O . 142XRC XADVANCE and XRECOVER operations. 142Host time-stamping requirements. 144Description of XRC components . 1456EMC Compatibility Features for IBM Copy Services on z/OS TechBook
ContentsSymmetrix SIDEFILE . 145Sidefile resource management . 146READERTIMEOUT value . 148Volume pairs. 149Utility device. 150SCSESSION and readers . 150Multi-readers . 151Copy operations . 152System Data Mover (SDM) address space . 153SDM buffers and memory requirements . 155System zResources . 156z/OS SDM systems . 156SDM sizing . 157SDM scalability . 157XRC parameters . 160XRC PARMLIB hierarchy . 169XRC control data sets. 170XRC TSO commands . 173Ordering XRC MC features for XRC implementations . 175Designing an EMC XRC solution for z/OS . 176Implementation . 176Sidefile specification . 179Symmetrix configuration file specifications . 179Linkage and channel extension connectivity . 181FICON linkage requirements . 182XRC exploitation of PAVs. . 183Diagnostics: MODIFY ANTAS000 commands . 185XRC Performance Monitor (XPM) . 187Chapter 6GDPS/XRCGDPS/XRC overview . 190GDPS/XRC features and operations . 190GDPS/XRC components . 190GDPS/XRC systems and DASD components . 196Production systems/production sysplexs . 196GDPS/XRC sysplex . 196GDPS/XRC DASD . 197GDPS/XRC GEOXPARM mirroring defined . 200Locating XRC error messages with GDPS/XRC . 201Locating XRC XRECOVER report . 202NetView operations . 203Getting to GDPS from NetView operator console . 203EMC Compatibility Features for IBM Copy Services on z/OS TechBook7
ContentsBrowse NetView’s log . 203Search NetView’s log for messages. 203Issuing MVS System Commands from NetView . 203Chapter 7Three-Site Solution GDPS/MzGMGDPS/MzGM overview . 206MzGM architecture . 208Terminology in GDPS MzGM . 214Symmetrix system compatible feature licensing in GDPS MzGM.215GDPS MzGM and XRC incremental re-synchronization. 216Incremental resynchronization feature . 216Managing incremental resynchronization XRC sessions . 216Chapter 8Compatible Native Flash for MainframeCompatible Native Flash for Mainframe overview . 220Description of operation . 221Departures from IBM’s solution . 222Supported FlashCopy functions . 222Symmetrix split considerations . 222FlashCopy components. 223Source volume. 223Target volume . 224FlashCopy session . 224FlashCopy modes of operation . 225FlashCopy COPY . 225FlashCopy NOCOPY. 226FlashCopy INCREMENTAL . 226FlashCopy Consistency Groups . 227Difference with PPRC CGROUP . 227FlashCopy Consistency Group . 228FlashCopy Freeze . 228FlashCopy Thaw . 228FlashCopy TSO commands . 229Symmetrix system configuration file settings . 230FlashCopy with GDPS/PPRC deployment. 231GDPS Managed FlashCopy . 231Remote Pair FlashCopy . 231FlashCopy Considerations with XRC and GDPS/XRCdeployment . 233Traditional DR testing without Zero Suspend FlashCopy. 2338EMC Compatibility Features for IBM Copy Services on z/OS TechBook
ContentsDR Testing with Zero Suspend FlashCopy . 233Recovery for actual DR. 235Additional FlashCopy considerations . 236FlashCopy and XRC performance concerns during DRtesting . 237Appendix APPRC PATHing and Linkage AddressLink parameters. 240Link parameters for VMAX 20K and 40K. 240Defining PPRC PATHs with ICKDSF . 242Link Parameters for VMAX3 and VMAX All Flash . 242Appendix BEMC’s Role as a GDPS Storage VendorNew GDPS deployment . 245Supplementing an existing GDPS implementation . 247Appendix CSample GEOPARM (GEOXPARM)Overview . 249GDPS/PPRC GEOPARM . 250Appendix DGDPS/PPRC Support MatrixSupport matrix. 255EMC Compatibility Features for IBM Copy Services on z/OS TechBook9
Contents10EMC Compatibility Features for IBM Copy Services on z/OS TechBook
Figures12345678910111213PPRC components . 49Abbreviated PPRC states . 56GDPS/PPRC components . 77GDPS with HyperSwap architecture and DASD connectivity example 93Batch TMP to trigger an unplanned GDPS/PPRC FREEZE . 119GDPS/PPRC BCRS architecture . 124GDPS/PPRC FREEZE STOP/GO network provisioning with DWDM .125GDPS/PPRC with HyperSwap network . 127XRC components . 132GDPS/XRC components . 190GDPS/MzGM architectural components . 208FlashCopy Components . 223Remote Pair FlashCopy Relationships . 232EMC Compatibility Features for IBM Copy Services on z/OS TechBook11
Figures12EMC Compatibility Features for IBM Copy Services on z/OS TechBook
Tables1234567891011121314151617Allowable Compatible Extended copy combinations . 31Query DASD storage controller status comparison . 66PPRC TSO commands . 68Symmetrix configuration settings for PPRC compatibility . 71EMC features for GDPS/PPRC implementation . 111Feature requirements and compatibility features . 137XRC PARMLIB recommendations. 162XRC commands . 173MC products for XRC implementation . 175Symmetrix Configuration File Settings for XRC enablement . 180PAV enablement . 183ANTAS000 command functions . 185MC features for GDPS MzGM implementation . 215FlashCopy commands . 229Symmetrix Configuration File Settings for FlashCopy enablement. 230Symmetrix PPRC link parameter director map hex lookup. 241Support Matrix . 256EMC Compatibility Features for IBM Copy Services on z/OS TechBook13
Tables14EMC Compatibility Features for IBM Copy Services on z/OS TechBook
PrefaceThis TechBook is intended as an introduction to EMC’s compatibilityfeatures for IBM’s Advanced Copy Services technologies. Its primaryfunction is to provide EMC personnel and customers in pre-sales or earlyimplementation activities a quick guide to the configuration and operationsof PPRC, XRC, and FlashCopy compatibility features as they are supportedby EMC. In addition, overview of common deployments of the AdvancedCopy Services features and the degree of EMC’s compliance with thosefeatures is provided, noting when relevant departures in compatibility occur.This TechBook provides the reader with functional insight into EMC’s rolein the deployment and operations of GDPS.As part of an effort to improve and enhance the performance and capabilitiesof its product lines, EMC periodically releases revisions of its hardware andsoftware. Therefore, some functions described in this document may not besupported by all versions of the software or hardware currently in use. Forthe most up-to-date information on product features, refer to your productrelease notes. If a product does not function properly or does not function asdescribed in this document, contact your EMC representative.AudienceThis TechBook assumes some familiarity with the Symmetrix line ofstorage systems and EMC’s native remote copy technology. It is theintention of this manual to document the methodology of a remotecopy implementation with EMC’s compatible copy servicesmicrocode features: pre-sales, customer consulting, GDPSimplementation, and initial problem determination aid. The materialswithin do not assume that Symmetrix features will be employed in asystems managed solution (such as GDPS).EMC Compatibility Features for IBM Copy Services on z/OS TechBook15
PrefaceRelateddocumentationFor EMC documentation, refer to EMC Online Support athttps://support.emc.com, search by product, and chooseDocumentation.EMC Mainframe Technology OverviewEMC Symmetrix Product GuideEMC SRDF Product GuideDFSMS Extended Remote Copy Reference Information for AdvancedUsersDFSMS Advanced Copy ServicesGDPS/PPRC Installation and Customization GuideGDPS/HM Installation and Customization GuideGDPS/XRC Installation and Customization GuideGDPS/MzGM Planning and Implementation GuideNetView and SA for z/OS manual recommendationsFor IBM documentation, refer to the IBM website athttp://www.ibm.com.Note: All GDPS installation and customization guides are IBM-licensedmaterials and are available for use at the customer's site by the customer, thecustomer's contractors, and the customer's vendors once a GDPS licensingagreement is signed by the customer.16EMC Compatibility Features for IBM Copy Services on z/OS TechBook
PrefaceConventions used inthis documentEMC uses the following conventions for special notices:IMPORTANTAn important notice contains information essential to software orhardware operation.Note: A note presents information that is important, but not hazard-related.Typographical conventionsEMC uses the following type style conventions in this document.NormalUsed in running (nonprocedural) text for: Names of interface elements, such as names ofwindows, dialog boxes, buttons, fields, and menus Names of resources, attributes, pools, Booleanexpressions, buttons, DQL statements, keywords,clauses, environment variables, functions, andutilities URLs, pathnames, filenames, directory names,computer names, links, groups, service keys, filesystems, and notificationsBoldUsed in running (nonprocedural) text for names ofcommands, daemons, options, programs, processes,services, applications, utilities, kernels, notifications,system calls, and man pagesUsed in procedures for: Names of interface elements, such as names ofwindows, dialog boxes, buttons, fields, and menus What the user specifically selects, clicks, presses,or typesItalicUsed in all text (including procedures) for: Full titles of publications referenced in text Emphasis, for example, a new term VariablesEMC Compatibility Features for IBM Copy Services on z/OS TechBook17
PrefaceWhere to get helpCourierUsed for: System output, such as an error message or script URLs, complete paths, filenames, prompts, andsyntax when shown outside of running textCourier boldUsed for specific user input, such as commandsCourier italicUsed in procedures for: Variables on the command line User input variables Angle brackets enclose parameter or variable valuessupplied by the user[]Square brackets enclose optional values Vertical bar indicates alternate selections — the barmeans “or”{}Braces enclose content that the user must specify,such as x or y or z.Ellipses indicate nonessential information omittedfrom the exampleEMC support, product, and licensing information can be obtained asfollows.EMC support, product, and licensing information can be obtained onthe EMC Online Support site as described next.Note: To open a service request through the EMC Online Support site, youmust have a valid support agreement. Contact your EMC sales representativefor details about obtaining a valid support agreement or to answer anyquestions about your account.Product informationFor documentation, release notes, software updates, or forinformation about EMC products, licensing, and service, go to theEMC Online Support site (registration required) at:https://support.EMC.comTechnical supportEMC offers a variety of support options.Support by Product — EMC offers consolidated, product-specificinformation on the Web at:https://support.EMC.com/products18EMC Compatibility Features for IBM Copy Services on z/OS TechBook
PrefaceThe Support by Product web pages offer quick links toDocumentation, Wh
storage systems and EMC's native remote copy technology. It is the intention of this manual to document the methodology of a remote copy implementation with EMC's compatible copy services microcode features: pre-sales, customer consulting, GDPS implementation, and initial problem determination aid. The materials
