IMS 13 Overview - IMS UG Singapore 8-2013

692 views

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
692
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
14
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

IMS 13 Overview - IMS UG Singapore 8-2013

  1. 1. Geoff Nicholls, Consulting IT Specialist Introducing IMS 13 June 2013 © 2013 IBM Corporation
  2. 2. Introducing IMS 13 Important Disclaimer © Copyright IBM Corporation 2013. All rights reserved. U.S. Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. THE INFORMATION CONTAINED IN THIS PRESENTATION IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY. WHILE EFFORTS WERE MADE TO VERIFY THE COMPLETENESS AND ACCURACY OF THE INFORMATION CONTAINED IN THIS PRESENTATION, IT IS PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. IN ADDITION, THIS INFORMATION IS BASED ON IBM’S CURRENT PRODUCT PLANS AND STRATEGY, WHICH ARE SUBJECT TO CHANGE BY IBM WITHOUT NOTICE. IBM SHALL NOT BE RESPONSIBLE FOR ANY DAMAGES ARISING OUT OF THE USE OF, OR OTHERWISE RELATED TO, THIS PRESENTATION OR ANY OTHER DOCUMENTATION. NOTHING CONTAINED IN THIS PRESENTATION IS INTENDED TO, NOR SHALL HAVE THE EFFECT OF, CREATING ANY WARRANTIES OR REPRESENTATIONS FROM IBM (OR ITS SUPPLIERS OR LICENSORS), OR ALTERING THE TERMS AND CONDITIONS OF ANY AGREEMENT OR LICENSE GOVERNING THE USE OF IBM PRODUCTS AND/OR SOFTWARE. IBM, the IBM logo, ibm.com, Information Management, IMS, CICS, DB2, WebSphere and z/OS are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. If these and other IBM trademarked terms are marked on their first occurrence in this information with a trademark symbol (® or ™), these symbols indicate U.S. 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 “Copyright and trademark information” at ibm.com/legal/copytrade.shtml Other company, product, or service names may be trademarks or service marks of others. 2 © 2013 IBM Corporation
  3. 3. Introducing IMS 13 Agenda QPP & Status of IMS Versions System Enhancements Database and DBRC Enhancements Transaction Manager and Integration Enhancements Prerequisites, Migration, Coexistence 3 © 2013 IBM Corporation
  4. 4. Introducing IMS 13 Introducing IMS 13 – Smarter Than Ever! IMS 13 Quality Partnership Program Announced on October 3, 2012 – Program began on December 14, 2012 – QPP participants have installed and are testing IMS 13 – General availability of IMS 13 will be announced at a later date.  Announcement Letter available on ibm.com  Current Status – 12 customers in IMS 13 QPP in 2013 – All customers through Sandbox production – 5 customers have IMS 13 in AD environments – 3+ targeted for full production by GA 4 © 2013 IBM Corporation
  5. 5. Introducing IMS 13 Status of IMS Versions IMS Version 9 • End of service was November 7, 2010 IMS Version 10 • Generally available on October 26, 2007 • End of service was November 5, 2012 IMS Version 11 • Generally available on October 30, 2009 • Will be withdrawn from Marketing on September 9, 2013 • End of service has not been announced IMS Version 12 • Generally available on October 28, 2011 • End of service has not been announced IMS Version 13 • Announced on October 3, 2012 • Currently in QPP program • General availability has not been announced 5 © 2013 IBM Corporation
  6. 6. Introducing IMS 13 IMS 13 System Enhancements 6 © 2013 IBM Corporation
  7. 7. Introducing IMS 13 IMS 13 System Enhancements • • • • • • • • 7 IMS Connect Enhancements Concurrent Application Threads Reduced Total Cost of Ownership (TCO) IMS CQS Enhancement IMS DRD Enhancement IMS User Exit Enhancements IMS Security Enhancements /DIAGNOSE Command Enhancements © 2013 IBM Corporation
  8. 8. Introducing IMS 13 IMS Connect Enhancements • • Auto-restart of the Language Environment (LE) • Expanded Recorder Trace Records • Use of RACF Event Notification Facility (ENF) Support for cached RACF UserIDs (UID) • Reporting of overall health to Workload Manager (WLM) • Configurable TCP/IP backlog (queue) size • 8 XML Converter Enhancements Dynamic creation of Ports and Datastores via command © 2013 IBM Corporation
  9. 9. Introducing IMS 13 IMS Connect Enhancements Reduced Time Enhancements specifically for IMS SOAP Gateway users • Ability to increase the number of Converters that can be loaded (from 100 to 2000) New IMS Connect configuration parameter MAXCVRT ADAPTER(…,MAXCVRT=value) (IMS 12 PM64487 / UK79728) • Capability to view converters that are currently loaded New Type-2 Command: QUERY IMSCON TYPE(CONVERTER) • Requests detailed information about XML converters in IMS Connect z/OS Windows/AIX/ zLinux/zOS Web Service Client (.NET, SAP, java, etc.) SOAP Envelope with XML message HTTP / SOAP XML message IMS SOAP Gateway TCP/IP / XML IMS Connect IMS message IMS XML Converter Benefits: • Enhances the flexibility of converter usage • Directly impacts IMS Soap Gateway environments 9 © 2013 IBM Corporation
  10. 10. Introducing IMS 13 IMS Connect Enhancements … Reduced Time Auto-restart of the Language Environment (LE) • Automated mechanism to reinitialize the Language Environment when an XML converter ABENDs Without restarting IMS Connect Converters will be reloaded as they are needed • Automatic refresh of the BPE User Exit for the XML Adapters (HWSXMLA0) after the ABEND limit ABLIM has been reached No need to manually refresh exit z/OS Windows/AIX/ zLinux/zOS Web Service Client (.NET, SAP, java, etc.) SOAP Envelope with XML message HTTP / SOAP XML message IMS SOAP Gateway TCP/IP / XML IMS Connect IMS message IMS XML Converter Benefits: • Improved efficiencies during error conditions • Eliminates IMS Connect restart and user interactions • Directly impacts IMS Soap Gateway environments 10 © 2013 IBM Corporation
  11. 11. Introducing IMS 13 IMS Connect Enhancements Reduced Time Enhancements for ALL IMS Connect users The Recorder trace records have been expanded to: • Capture entire messages sent and received using: All TCP/IP communications • Including DRDA sockets and ISC TCP/IP • SCI (OM, ODBM, MSC, and ISC communications) • Requires a Trace Level HIGH and use of the external trace data set UPDATE TRACETABLE NAME(RCTR) OWNER(HWS) LEVEL(HIGH) EXTERNAL(YES | NO) Benefits: • Improved diagnostics and problem determination 11 © 2013 IBM Corporation
  12. 12. Introducing IMS 13 IMS Connect Enhancements Reduced Time Enhancements for ALL IMS Connect users RACF Event Notification Facility (ENF) Support Background • IMS Connect 12 provided the option to cache RACF UserIDs (UIDs) along with a command to refresh them (UIDCACHE=Y) IMS Connect 13: RACF ENF Support for Cached UserIDs (UID) • Automatically refreshes cached UIDs by listening to RACF events (ENF signals) indicating that a change has been made to a UID RACF CONNECT, REMOVE and ALTUSER REVOKE commands • NOTE: This function applies only when RACF UID caching has been enabled in IMS Connect Benefits: • Allows IMS Connect to listen for certain RACF events indicating that a change has been made to a specific UserID • Avoids manual intervention 12 © 2013 IBM Corporation
  13. 13. Introducing IMS 13 IMS Connect Enhancements Enhancements for ALL IMS Connect users Reporting of Overall Health to Workload Manager (WLM) • WLM Health Report New function to automatically report the overall health of IMS Connect • Allows Sysplex Distributor to use and take this information into account for The “health” of the workload balancing IMS Connect is directly related to the percentage of available sockets. As clients connect, the health value reported to WLM by IMS Connect will start to go down. Coding a distribution method of SERVERWLM VIPADYNAMIC … VIPADISTRIBUTE DEFINE DISTMETHOD SERVERWLM Note: the health value is not used when DISTMETHOD is ROUNDROBIN or BASEWLM • Allows multiple IMS Connects sharing ports on one system to use this information 8888 TCP HWS* SHAREPORTWLM TO WLM ;SHARED PORT FOR HWS. USING HEALTH REPORTED Benefits: • Allows WLM to know when resources are constrained or available • Minimizes the possibility of assigning work that IMS Connect is unable to handle 13 © 2013 IBM Corporation
  14. 14. Introducing IMS 13 IMS Connect Enhancements Enhancements for ALL IMS Connect users Configurable TCP/IP backlog (Queue) size New parameter TCPIPQ • Allows users to configure the length of the queue in TCP/IP for connection requests that have not yet been assigned a socket Connection requests are held on this queue until IMS Connect can assign a socket • Overrides the default which is equal to the MAXSOC value Actual value used is the smaller of IMS Connect’s TCPIPQ value and SOMAXCONN in TCP/IP During peak processing times requests up to this value can be queued in TCP/IP without their connections being rejected pending IMS Connect action Benefits: • Provides a configurable option to increase the backlog queue size in TCP/IP 14 © 2013 IBM Corporation
  15. 15. Introducing IMS 13 IMS Connect Enhancements Enhancements for ALL IMS Connect users • Dynamically CREATE IMS Connect resources through commands For PORT and DATASTORE CREATE IMSCON TYPE(PORT) NAME(portnum1, portnum2, ...) LIKE(portnum_model) SET(attribute1, attribute2, ...) • Equivalent to defining TCPIP (regular port) or ODACCESS (DRDA port) statement in HWSCFGxx 15 © 2013 IBM Corporation
  16. 16. Introducing IMS 13 IMS Connect Enhancements Enhancements for ALL IMS Connect users • Dynamically CREATE IMS Connect resources through commands For PORT and DATASTORE CREATE IMSCON TYPE(DATASTORE) NAME(datastore_name) LIKE(datastore_model) SET(attribute1, attribute2, ...) • Equivalent to defining the DATASTORE statement in HWSCFGxx • DATASTORE=( APPL=, ACKTO=, CM0ATOQ=, DRU=, GROUP=, ID=, MAXI=, MEMBER=, OAAV=, RRNAME=, SMEMBER=, TMEMBER= ) • Note: Definitions created by CREATE commands do not persist across IMS Connect restart Benefits: • IMS Connect customers can now add new ports and IMS datastore connections without having to restart IMS Connect • Improved IMS Connect availability • Existing type-2 command architecture leveraged 16 © 2013 IBM Corporation
  17. 17. Introducing IMS 13 Overall Value of IMS Connect Enhancements • Enhanced usability while providing better performance and diagnostics • Increased resiliency to Abnormal Ends (ABENDs) • Improved usability and manageability 17 © 2013 IBM Corporation
  18. 18. Introducing IMS 13 Increase Number of Concurrent Application Threads 4 x More Applications! Increase the limit of concurrent application threads from 999 to 4095 Limit applies to the total number of combined: • Dependent Regions (MPP/BMP/IFP/JMP/JBP) • CICS/DBCTL threads • Open DB Access (ODBA) threads Change to MAXPST parameter on IMS control region Note: Reducing MAXPST= requires a Coldstart 31 dependent regions - 1980 (IMS 1.1.6) 999 dependent regions - 1995 (IMS 5.1) 4095 dependent regions - 2013 (IMS 13) Benefits: • Increased capacity and scalability for IMS systems • Allows vertical growth • More dependent regions for use with synchronous callout and program switch 18 MAXPST should no longer be a limiting factor in IMS Growth© 2013 IBM Corporation
  19. 19. Introducing IMS 13 IMS 13 Highest Efficiency, Lowest Total Cost of Ownership 19 © 2013 IBM Corporation
  20. 20. Introducing IMS 13 Reduced Total Cost of Ownership Reduced Cost Cross-platform focus on reducing mainframe software costs Major focus on reducing CPU usage Changes throughout IMS to improve performance, reduce storage usage and reduce CPU used to run IMS • • • • • • • Using more efficient storage services Improved algorithms Reducing path length Optimizing frequently used processes Latch / lock improvements Storage reductions Use of zEnterprise hardware functions Benefits: • Improved performance, lower cost per transaction, reduced cost of ownership 20 © 2013 IBM Corporation
  21. 21. Introducing IMS 13 Specific Reduced TCO Enhancements Reduced Cost IMS logger LOG latch contention reduction • Improves usage of log latch and log buffer management for increased logging bandwidth and more efficient processing Shared queues local first optimization now applies to program-to-program switch messages as well as ordinary input messages • Avoids false scheduling on another IMS when the local IMS can process the program-to-program switch message Exploitation of pageable 1M pages • Based on usage of new zEC12 processors with Flash Express storage and z/OS 1.13 (Dec. 2012) • Provides improvements in dynamic address translation and usage of translation lookaside buffer (TLB) IMS 13 requests the following areas to be backed by pageable large pages, when available: CQS interface buffers DPSB pool (DLI/SAS PSB pool) * DLDP pool (DMB pool) * DBWP pool (DMB work pool) * * If you page fix these pools, then they will not be backed by 1M pages. 21 © 2013 IBM Corporation
  22. 22. Introducing IMS 13 Specific Reduced TCO Enhancements … Reduced Cost DB Space Management Block Serialization Latch Improvements • Split from single to multiple latches to improve heavy BMP workloads MEMDSENQMGMT Exploitation • More efficient memory-based data set ENQ management improves dynamic allocation of large number of data sets • To enable, add the following statement to your ALLOCxx SYS1.PARMLIB member: SYSTEM MEMDSENQMGMT(ENABLE|DISABLE) 22 © 2013 IBM Corporation
  23. 23. Introducing IMS 13 Other Reduced TCO Enhancements • • • • • • • • • • • 23 Reduced Cost OTMA YTIB chain changed from a single linked list to a hash table, to improve FINDDEST performance. Convert OTMA and IMS Connect STORAGE calls to CPOOL. Remove unnecessary clearing of OTMA buffers. DFSCPY00 improved SVC directory entry search algorithm and removal of IVSK instructions. CQS mainline modules changed to use branch-relative branching. Cache efficiency improvements (DPST blocks packed into a single IPAGE to keep cache references localized). IMS page load service algorithm optimization. IMS dispatcher optimizations. OSAM CML Lock Reduction. General instruction optimization (replacing STCK with STCKF, long displacement facility exploitation). IMS cache manager spin loop elimination. Enhancements are across many components of IMS, showing the reduced TCO focus for the whole IMS product. © 2013 IBM Corporation
  24. 24. Introducing IMS 13 IMS 13 User Exit Enhancements Reduced Time Enhanced user exit services extended to additional IMS control region user exits Users can now dynamically refresh more IMS user exit routines to bring in an updated version of the exit (or add/delete) • Significantly reduces downtime since IMS control region no longer requires restart Users can now display information about more user exits that are defined in the USER_EXITS section of DFSDFxxx • Provides useful exit information to the user Users can now code an exit to leverage IMS’s ability to call multiple routines of the same type from a single point within the exit 27 © 2013 IBM Corporation
  25. 25. Introducing IMS 13 Refreshable User Exits Reduced Time Refresh user exits without an IMS system outage Defines exit “types” to support a list of exit names • • • • • • • • BSEX - DFSBSEX0 (Build Security Environment Exit) LOGEDIT - DFSFLGE0 (Log Edit Exit) LOGWRT - DFSFLGX0 (Log Write Exit) NDMX - DFSNDMX0 (Non-Discardable Message Exit) RASE - DFSRAS00 (Resource Access Security Exit) OTMAIOED - DFSYIOE0 (OTMA Input/Output Edit Exit) OTMARTUX - DFSYRTUX (OTMA Resume Tpipe Security Exit) OTMAYPRX - DFSYPRX0 (OTMA Destination Resolution Exit) Benefits: • Improves availability • Simplifies user exit management 28 © 2013 IBM Corporation
  26. 26. Introducing IMS 13 /DIAGNOSE Command Enhancements Reduced Time Users can now send formatted /DIAGNOSE SNAP command output to a SYSOUT data set, enabling easy submission to IBM support SYSOUT data set will contain documentation that is • Formatted and readable • Easy to retrieve SHOW() support added for LTERM, NODE, USER BLOCK – can now specify multiple single instance blocks and more block types can be snapped More blocks can be snapped for DB, LINE, LINK Support added for MSNAME Benefits: • Improve time and effort to capture diagnostic information • Reduce time needed to resolve problems 32 © 2013 IBM Corporation
  27. 27. Introducing IMS 13 Summary of IMS 13 System Topics IMS Connect Enhancements Concurrent Application Threads Reduced Total Cost of Ownership (TCO) IMS CQS Enhancement IMS DRD Enhancements IMS User Exit Enhancements IMS Security Enhancements /DIAGNOSE Command Enhancements 33 © 2013 IBM Corporation
  28. 28. Introducing IMS 13 IMS 13 Database and DBRC Enhancements 34 © 2013 IBM Corporation
  29. 29. Introducing IMS 13 IMS 13 Database and DBRC Enhancements HALDB Alter DEDB Alter Database Versioning DBRC Enhancements 35 © 2013 IBM Corporation
  30. 30. Introducing IMS 13 HALDB Alter Improved Availability Structural Changes can be made to an IMS HALDB whilst the database remains online • • • • Add a new field to space at the end of an existing segment Increase the length of an existing segment Define new fields that remap existing fields and space in an existing segment Fixed-length segments only A A B C B C Benefits: • Improves IMS HALDB availability by providing structure changes without taking the database offline • Provides flexibility in rolling database changes into the system 36 © 2013 IBM Corporation
  31. 31. Introducing IMS 13 HALDB Alter Overview Improved Availability HALDB Alter is only supported for database types: • PHDAM • PHIDAM After changes are made to the DBD segment definition • Type-2 INITIATE OLREORG command is used to alter a database from the current structure to the new structure Type-1 command /INITIATE OLREORG does not support altering a HALDB • Online Change commands are used to bring the changed ACBLIB DBD member online • Application programs can start using the new database structure 37 © 2013 IBM Corporation
  32. 32. Introducing IMS 13 OLR Overview - Reminder Cursor points to root key or RBA of last committed reorganized record Input Data Sets Cursor Database records that have been copied to the output Locked Database Records A thru J and X Database records yet to be copied to the output Database records are copied from the input to the output datasets in UORs UOR : One or more HALDB records (root and all of its dependent segments) that are reorged within one commit boundary. Output Data Sets M thru V and Y Database records that have been copied from the input 38 Database records can be read, replaced, inserted or deleted © 2013 IBM Corporation
  33. 33. Introducing IMS 13 HALDB Alter Online Processing Online Reorg is used to alter the structure of a HALDB database • The input side uses the current DBD from the active ACBLIB • The output side uses the new DBD from a staging ACBLIB Delta files are built to represent the changes between the active/input DMB and the staged/output DMB All database partitions are included in the reorg process  Application programs accessing the existing database continue running using the current DBD  Max of 10 TCBs will be scheduled concurrently for an ALTER process, if necessary 39 © 2013 IBM Corporation
  34. 34. Introducing IMS 13 HALDB Alter Online Processing (cont’d) The new database structure will be available for use after the OLR ALTER and OLC processes have completed successfully • Make necessary updates to affected application programs • Take a backup of the active ACBLIB member(s) being changed • Stop access to the altered HALDB database Use /DBR or UPDATE command • Do OLC to complete the alter process for changed ACBLIB member(s) Member Online Change is recommended • Reads directly from the staging ACBLIB • Can process specific ACBLIB members requiring activation INITIATE OLC TYPE(ACBMBR) NAME(acbmember) • Start access to the altered HALDB database • Until OLC process is complete, application programs accessing the database receive the unaltered format of the segment 40 © 2013 IBM Corporation
  35. 35. Introducing IMS 13 HALDB Alter Prerequisites Improved Availability Software requirements • CSL SCI OM • DBRC RECON MINVERS (‘13.1’) 41 © 2013 IBM Corporation
  36. 36. Introducing IMS 13 Fast Path Data Entry Database (DEDB) Alter Improved Availability Allows DEDB Area changes without unload/reload of the area • Dynamic change for UOW, SIZE and ROOT parameters of an existing Area • Replace the randomizer Provides new DEDB dynamic change utility • Runs as a standard Fast Path IFP utility • Area remains online Requires the use of a two-stage randomizer allowing Areas to be processed individually If SDEPs are present, only the randomizer name can be changed Supports VSO Areas if /VUNLOAD is done before DEDB Alter is executed Benefits: • Improves DEDB Area availability by providing definitional changes without taking the Area offline • Provides flexibility in rolling Area changes into the system 42 © 2013 IBM Corporation
  37. 37. Introducing IMS 13 Database Versioning Overview Usability Allows programs to use different versions of the same physical database • Multiple views of the physical data maintained in the IMS Catalog • Existing applications can remain unchanged when the physical structure of the database changes • Recompile just those programs referencing changed fields/segment • Applies to Full Function DB, HALDB, Fast Path DEDB • Supports database types: HDAM, HIDAM, PHDAM, PHIDAM, DEDB Benefits: • Provides greater flexibility in rolling out new versions of programs and databases • Allows new programs to get out faster without waiting for all programs to be updated to the new database structure 44 © 2013 IBM Corporation
  38. 38. Introducing IMS 13 Database Versioning Overview (cont’d) Database Versioning supports the following database types • DEDB • HDAM IMS Catalog • HIDAM • PHDAM • PHIDAM Database Versioning supports the following database structure changes • For all supported database types Increasing the length of a segment Adding a new field to space at the end of a segment • For Full-Function and HALDB database types Adding new field(s) that remap existing field(s) and space at the end of a segment 45 © 2013 IBM Corporation
  39. 39. Introducing IMS 13 Database Versioning Overview (cont’d) Database Versioning must be enabled in DFSDFxxx Versioning is at the DBD level • • Users define the version of a database definition on the DBD Version numbers must be maintained in incremented values IMS Catalog Database Versioning requires enablement of the IMS catalog • DBD definitions for versioned databases must be in the IMS catalog Application programs can select the desired database version • • 46 Specifying the version number on the PCB of the PSB Specifying the version number on a DL/I INIT VERSION call © 2013 IBM Corporation
  40. 40. Introducing IMS 13 Database Versioning Implementation DFSDFxxx PROCLIB: new DATABASE section keywords • Specify whether database versioning is enabled and default version DBVERSION= DBLEVEL= IMS Catalog Database and Program Generation Statements • Specify the database version number DBD: DBVER= PCB: DBVER= • Override the default versioning specified in DFSDFxxx PSBGEN: DBLEVEL= “INIT VERSION” DL/I Call • • 47 Overrides the version number that is specified on the PCB statement Must be issued before issuing a DL/I DB call to the database © 2013 IBM Corporation
  41. 41. Introducing IMS 13 Solution Overview – Database Versioning Flow #1 DBD Source DBJK21 V1 DBDGEN DBDLIB ACBLI B DBJK22 V1 ACBGEN DBJK21 V1 DBJK22 V1 DBJK23 V1 DBJK23 V1  Version “V1” of DBDs put into ACBLIB & Catalog  PSB=PSBJK Source  DBJK21 V1 DBJK22 V1 DBJK23 V1 PSBGEN -------------------------PCB -------------------------DBJK21 V0 DBJK22 DBJK23 V1 PSBLIB IMS Catalog PSBJK PSBGEN DBJK21 V0,V1 DBJK22 V0,V1 DBJK23 V0,V1 IMS Retrieve DBJK21 from Catalog Application DBJK21 DBJK22 DBJK23    DLI Active DBJK21 V0 DBJK22 V1 DBJK23 V1 DBJK21 V1 DBJK22 V1 DBJK23 V1 Database Versioning enabled -> data returned to app at V0 & V1 levels  DBJK21 DBJK22 DBJK23 48 © 2013 IBM Corporation
  42. 42. Introducing IMS 13 DBRC Enhancements Command support for HALDB Alter Command support for DEDB Alter MINVERS value of ’13.1’ must be set to use HALDB Alter, DEDB Alter, or synchronous program switch in a shared queues environment Supported Migration and Coexistence • IMS 11 to IMS 13 Apply DBRC coexistence SPE APAR PM53134 to IMS 11 • PTF UK80026 Allow IMS 11 to understand IMS 13 RECON records • IMS 12 to IMS 13 Apply DBRC coexistence SPE APAR PM53139 to IMS 12 • PTF UK80027 Allow IMS 12 to understand IMS 13 RECON records 49 © 2013 IBM Corporation
  43. 43. Introducing IMS 13 Summary of IMS 13 Database Manager and DBRC Topics • • • • 50 HALDB Alter DEDB Alter Database Versioning DBRC Enhancements © 2013 IBM Corporation
  44. 44. Introducing IMS 13 IMS 13 Transaction Manager and Integration 51 © 2013 IBM Corporation
  45. 45. Introducing IMS 13 IMS TM and Integration Enhancements • Callout function enhancements • ISC Over TCP/IP • OTMA enhancements 52 © 2013 IBM Corporation
  46. 46. Introducing IMS 13 Callout Function Enhancements • • • 53 Synchronous Program Switch Enhancements to RECEIVE function for handling truncated messages OTMA destination descriptors support asynchronous messages that are going to IBM Websphere MQ © 2013 IBM Corporation
  47. 47. Introducing IMS 13 Background DL/I ICAL support from previous IMS releases • Provided synchronous callout capability to resources outside IMS z/OS IMS WebSphere MPP/JMP/IFP/BMP/JBP IMS TM resource adapter OTMA TM/CTL Services IMS IMS SOAP GATEWAY Application Program ICAL DB Services Connect TCP/IP user-written Client IMS Connect API 54 OTMA Descriptor OTMA Descriptor Database © 2013 IBM Corporation
  48. 48. Introducing IMS 13 Synchronous Program Switch Usability New capability that enhances the DL/I ICAL support • Allows an IMS application program to synchronously call and wait for a reply from another IMS application program • Within the calling program’s UOW WebSphere IMS TM services IMS TM resource adapter Application Program IMS IMS SOAP GATEWAY Connect IMS dependent region OTMA IMS DB services Database ICAL TCP/IP user-written Client MPP, JMP IFP, MD BMP 55 © 2013 IBM Corporation
  49. 49. Introducing IMS 13 Synchronous Program Switch … Benefits • Modernization of the IMS application infrastructure Provides an internal service flow of IMS transactions to complete a business process • In the same IMS or a different IMS • Implementation of a Process Server or Broker inside IMS Reduces unnecessary network traffic when accessing multiple applications in the same IMS or IMSplex WAS IMS Connect IMS WAS MPP1 WAS Application MPP2 MPP3 MPP4 WAS Application IMS Connect IMS MPPx ICAL ICAL ICAL ICAL MPP1 MPP2 MPP3 MPP4 57 © 2013 IBM Corporation
  50. 50. Introducing IMS 13 IMS Java Dependent Region use of External Subsystem Attach Facility Allow Java Dependent regions to use the External Subsystem Attach Facility (ESAF) Allows connections for DB2 to be consistent across all region types Allows access to other subsystems such as WebSphere MQ Eliminates the need to use z/OS Resource Recovery Services (RRS) Attach for DB2 WebSphere MQ IMS Java Application DB2 z/OS Benefits: • Allows JMS access to MQ from Java • Allows MQ access from COBOL and PL/I • Simplifies external subsystem definitions • Improved performance for DB2 due to eliminating extra signon processing 63 © 2013 IBM Corporation
  51. 51. Introducing IMS 13 InterSystem Communication (ISC) Over TCP/IP Highlights • Supports both static and dynamic terminals Static terminal definitions • SYSGEN stage 1 TYPE, TERMINAL, SUBPOOL macros • DFSDCxxx PROCLIB member Dynamic terminal specification • Logon descriptors in the DFSDSCMx or DFSDSCTy PROCLIB member • Leverages IMS Connect Enhancements to the HWSCFGxx configuration member • No IMS Connect user message exit changes • Uses CSL to communicate between IMS and IMS Connect Requires Structured Call Interface (SCI) and Operation Manager (OM) • Requires CICS Transaction Server for z/OS 5.1 Benefits: • Provides a strategic protocol alternative to SNA/VTAM • Allows an all inclusive TCP/IP solution for networks 64 © 2013 IBM Corporation
  52. 52. Introducing IMS 13 ISC Over TCP/IP Either IMS or CICS can initiate the request 1 Msg Switch IMS End User TCP/IP SCI tran OR INPUT IMS 2 INPUT REPLY 5 CICS 3 INPUT Transaction IMS Connect REPLY 6 Process transaction 4 tran REPLY Initiating a CICS transaction from IMS using an ISC TCP/IP connection Process transaction TCP/IP SCI IMS INPUT Transaction 4 REPLY 3 IMS Tx. (Start/Retrieve) 2 Connect 5 REPLY 1 CICS End User Tx. CICS 6 REPLY Initiating an IMS transaction from CICS using an ISC TCP/IP connection 65 © 2013 IBM Corporation
  53. 53. Introducing IMS 13 IMS TM and Integration Enhancements • • • • 66 Callout OTMA Enhancements JDR use of ESAF ISC over TCP/IP to CICS © 2013 IBM Corporation
  54. 54. Introducing IMS 13 IMS 13 At a Glance – … And more to come! Database Management Transaction Management and Integration Systems Management 67 HALDB Alter DEDB Alter Database Versioning Synchronous Program Switch OTMA Descriptor Support for WebSphere MQ Bridge OTMA Early Termination Notification OTMA Enhancements JDR Support for ESAF IMS to CICS via ISC over TCP/IP IMS Connect Enhancements Reduce TCO Increase number of concurrent applications Elimination of SECURITY Macro Standalone Security User Exits Log Latch Reduction User Exit Enhancements DIAG Command Enhancements © 2013 IBM Corporation
  55. 55. Introducing IMS 13 IMS 13 At a Glance – … And more to come! Migration and Coexistence 68 DBRC: Allow IMS 11 and IMS 12 migration to IMS 13 Syntax Checker: Support for new and changed parameters © 2013 IBM Corporation
  56. 56. Introducing IMS 13 IMS 13 Prerequisites, Packaging and Migration 69 © 2013 IBM Corporation
  57. 57. Introducing IMS 13 IMS 13 Software Prerequisites* IMS 13 Minimum Release Levels • z/OS V1R13 (5694-A01) –RACF (included in separately orderable SecureWay Security Server), or equivalent, if security is used –High Level Assembler Toolkit Release 5 (5696-234) –APAR OA39392 / PTF UA66823, OA36172/UA61786 *Subject to Change 70 © 2013 IBM Corporation
  58. 58. Introducing IMS 13 IMS 13 Software Prerequisites* Other prerequisites for optional line items: • Database Versioning requires the IMS Catalog • Java Dependent Regions require JDK 6.0.1 or later • IMS Universal Drivers require: IBM JDK 6.0.1 or later DB2 V9 or later (when used with DB2) WebSphere Application Server V7 or later (when used with WAS) CICS V4.1 or later (when used with CICS) Other middleware requirements: • IRLM 2.3 • DB2 9 or later • CICS 3.1 or later ISC using TCP/IP requires CICS 5.1 • WebSphere MQ V7.0.1 or later *Subject to change 71 © 2013 IBM Corporation
  59. 59. Introducing IMS 13 IMS 13 Hardware Prerequisites IMS 11,12 and 13 run only on 64 bit Processors running in z/Architecture mode that supports the Long Displacement Facility • ESA mode is not supported by IMS 11, 12, or 13 • For a list of System z machines see: ibm.com/systems/z/hardware/ •  z900 machines must be at GA2 level (microcode level 3G or later) Sysplex Data Sharing (including Data Caching and VSO Data Sharing) • Coupling Facility (CF) level 9, or later Shared Queues and Shared EMH support • Coupling Facility level 9 or later • System-managed CF Duplexing CF level 12, or later and bidirectional CF to CF links EAV support for non-VSAM data sets • EAVs are supported on DS8000 at microcode level R4.0 via bundle 64.0.175.0 (Sept 2008) or higher 72 © 2013 IBM Corporation
  60. 60. Introducing IMS 13 IMS 13 Migration and Coexistence Considerations IMS 13 supports migration/coexistence for IMS 11 and IMS 12 • DBRC Migration/Coexistence SPEs IMS 11: APAR PM53134 / UK80026 IMS 12: APAR PM53139 / UK80027 IMS 13 supports RSR migration/coexistence from/with IMS 11 and IMS 12 IMS 12 is the last release to support the SECURITY system generation macro • Security Migration/Coexistence SPEs Allows RCLASS and SECCNT to be coded via PROCLIB members prior to IMS 13 IMS 11: PM48203 / UK74050 IMS 12: PM48204 / UK74051 • 3 security exits no longer in IMS Nucleus - now standalone only DFSCSGN0, DFSCTRN0, DFSCTSE0 DFSCSGN0 is now called at IMS initialization 73 © 2013 IBM Corporation
  61. 61. Introducing IMS 13 IMS 13 Packaging Packaging Change • Only IRLM 2.3 will be distributed with IMS 13 IMS 13 Program Number: 5635-A04 • FMIDs HMK1300 JMK1301 JMK1302 JMK1303 JMK1304 JMK1305 JMK1306 HIR2230 74 IMS System Services IMS Database Manager IMS Transaction Manager IMS ETO IMS Recovery Level Tracker IMS Database Level Tracker IMS Java on Demand IRLM 2.3 © 2013 IBM Corporation
  62. 62. Introducing IMS 13 IMS 13 Release Planning Guide - GC19-3658-00 Release Planning Guide is Available from the z/OS Information Centre: http://pic.dhe.ibm.com/infocenter/dzichelp/v2r2/index.jsp 75 © 2013 IBM Corporation
  63. 63. Introducing IMS 13 IMS Strategic Objectives Reduce Total Cost of Ownership • Reduce MIPS usage • Advanced autonomics – IMS is self-managing and self-tuning Extend the lead in availability, scalability, and performance • Consistently deliver IMS capacity limits that are well beyond customer needs • Provide IMS performance metrics that help you grow your business securely Extend the lifecycle of IMS applications and transactions • Pervasive integration capabilities enable reuse of trusted IMS resources Enable high-volume transaction processing for next wave of applications • Big Data, next gen Web Services, Cloud, and more 76 © 2013 IBM Corporation
  64. 64. Introducing IMS 13 Questions? Contact alison_coughtrie@uk.ibm.com 77 © 2013 IBM Corporation

×