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IMS V13 Overview

Deepak Kohli

IMS Product Management

deepakk@us.ibm.com

Announcements

• IMS 13 QPP announce date: October 3, 2012

• IMS 13 QPP start date: December 14, 2012

• IMS 13, IMS 13 DB VUE & IMS Enterprise Suite 3.1

announce date October 1, 2013

• IMS 13, IMS 13 DB VUE & IMS Enterprise Suite 3.1

GA date: October 25, 2013

HALDB Alter

DEDB Alter

Database Versioning

Native SQL

.NET Access to IMS Data

Synchronous Program Switch

OTMA Descriptor Support for WebSphere MQ Bridge

OTMA Early Termination Notification

OTMA Enhancements

IMS to CICS via ISC over TCP/IP

IMS Shared Queues Local First EnhancementI

Reduce TCO

Increase number of concurrent applications

Elimination of SECURITY Macro

Standalone Security User Exits

Log Latch Reduction

User Exit Enhancements

JDR support for ESAF

DIAG Command Enhancements

IMS Connect Enhancements

IMS 13 At a Glance

Database Management

Transaction Management and

Connectivity

Systems Management

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IMS 13 Overview topics

• Lowering TCO

• Openness with Industry Standard Interfaces

• Faster time to market with Database Versioning

• Increased Availability, Autonomics & Dynamic Capabilities

• Integration

• Usability/Simplification

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Highest Efficiency, Lowest Total Cost of Ownership

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Reducing 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 pathlength

– 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

Reduced Cost

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IMS 13 and Java

• IMS 13 Universal DB Driver delivers:

– Up to 65% CPU time savings for Java applications in the Java

Batch Processing Region

– Up to 17% elapsed time savings for Java applications in the

Java Batch Processing Region

Reduced Cost

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IMS 13 on IBM zEC12 = Superior Performance

10% CPU reduction, per Full Function transactions, from IMS 12 to IMS 13 for IMS Connect, HALDB workload with 10K clients

31% CPU reduction, per Fast Path transactions, from IMS 12 to IMS 13 for IMS Connect workload using FP 64 bit buffers

Multiple concurrent BMP jobs on IMS 13 complete in up to 50% lower elapsed time compared with IMS 12

Up to 89% reduction in log latch contention on IMS 13; can improve your overall throughput, lowering cost per transaction even more

Cost-effective zIIP solutions for some IMS workloads lower CPU consumption by up to 23 %

Reduced Cost

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IMS 13: Highest Efficiency, Lowest TCO

• IMS V11: 29,000 trans/sec lab benchmark on IMS 11/z10

• IMS V12: 46,000 trans/sec lab benchmark on IMS 12/z196

• IMS V13: …

Performance, Reduced Cost

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100,000 transactions per second, on a single IMS system, sustained!

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IMS 13: Highest Efficiency, Lowest TCO

• IMS 13’s 100,000 trans per second was actually:

117, 292 trans per second

Performance, Reduced Cost

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Openness with industry standard interfaces

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IMS 13: Openness with industry standard interfaces

• Native SQL support for IMS COBOL programs

• First non-relational DBMS to provide SQL access from COBOL programs

• Addresses the skills concern for customers

Reduced Time

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IMS 13: Openness with industry standard interfaces

• IMS Data Provider for Microsoft .NET

• SQL access to IMS data from a .NET environment

• IBM intends, at a future time, possibly via its support and service processes, to make

available IMS Data Provider for Microsoft .NET as part of the IMS Enterprise Suite for

Distributed Systems offering. IMS Data Provider for Microsoft .NET will be designed to provide

standard SQL access to IMS data from Microsoft .NET applications. The intention is to allow

Microsoft .NET applications to transparently and directly read and manipulate IMS data without

the need for intermediate steps and additional tooling to accomplish these tasks.

• IBM's statements regarding its plans, directions, and intent are subject to change or

withdrawal without notice at IBM's sole discretion. Information regarding potential future

products is intended to outline our general product direction and it should not be relied on in

making a purchasing decision. The information mentioned regarding potential future products

is not a commitment, promise, or legal obligation to deliver any material, code or functionality.

Information about potential future products may not be incorporated into any contract. The

development, release, and timing of any future features or functionality described for our

products remains at our sole discretion.

Reduced Cost

Statement of Direction :

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Faster time to Market with Database Versioning

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IMS V13: Database Versioning

• Enables structural changes to a database without having to modify

existing IMS applications that access that database

– Structural changes limited to segment length increases

Benefits: Faster time to Market

• 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

Reduced Time

A

B C

A

C B

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Increased Availability, Autonomics and dynamic capabilities

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HALDB Alter

• Change the structure of an IMS HALDB without a DB outage

– Increase the length of an existing segment

– Add a new field to space at the end of an existing segment

A

B C

A

C B

Benefits:

• Improves IMS HALDB availability by providing structure changes without

taking the database offline

• Provides flexibility in rolling database changes into the system

Reduced Time

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DEDB Alter

IMS 13 adds ability to dynamically change DEDB specifications

– Users can dynamically change UOW, SIZE, ROOT and Randomizer while DEDB is online

– New DEDB Alter utility is used to make changes

Benefits:

• Improves DEDB Area availability by providing definitional changes without

taking the Area offline

• Provides flexibility in rolling Area changes into the system

Reduced Time

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IMS 13: Availability, Autonomics & Dynamic Capabilities

Greater ease-of-use with IMS Connect Enhanced OTMA Autonomics TCO reduction

Reduced Cost

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Integration

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InterSystem Communication (ISC) Over TCP/IP

• New option that supports TCP/IP network connectivity for

Intersystem Communication (ISC) connections

– IMS – CICS

– Supports both static and dynamic terminals

– Requires CICS Transaction Server for z/OS 5.1

• Announced October 3, 2012

Benefits:

• Provides a strategic protocol alternative to SNA/VTAM

• Allows an all inclusive TCP/IP solution for networks

Reduced Time

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Synchronous Program Switch

• Extend IMS Synchronous Callout to allow DL/I ICAL to invoke another

IMS Application

– DL/I ISRT continues to be used for asynchronous program switch

Benefits:

• Provides a single DL/I call to request a synchronous service regardless of

where that service resides

• Simplifies integration and improves usability

Reduced Time

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Asynchronous Callout to WebSphere MQ via MQ Bridge

• OTMA Descriptor enhancements

– New TYPE=MQSERIES to define WebSphere MQ destination

• Provides asynchronous callout and messaging support (DL/I ISRT ALTPCB)

IMS

Application WebSphere

MQ IMS

OTMA

Benefits:

• Eliminates need to write an OTMA user exit to recognize an MQ destination

• Simplifies integration and improves usability

Reduced Time

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IMS Java Dependent Region use of External Subsystem Attach Facility

• Allow Java Dependent regions to use the External Subsystem Attach

Facility

• 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 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

Reduced Cost

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Increase Number of Application Threads

• Increase the limit of concurrent application threads to 4095

• Limit applies to the total number of combined:

– Dependent Regions

– CICS/DBCTL threads

– Open DB Access (ODBA) threads

Benefits:

• Increased capacity and scalability for IMS systems

• Allows vertical growth

• More dependent regions for use with synchronous callout and program switch

4 x the number of applications!

31 dependent regions -

1980 (IMS 1.1.6)

999 dependent regions -

1995 (IMS 5.1)

4095 dependent regions -

2013 (IMS 13)

Reduced Cost

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Integration with WebSphere DataPower appliance V6.0 (5725-K52)

• IMS Synchronous Callout Support for customers who need a high

performance IMS callout solution.

• IMS Database Support enables a direct connection to an IMS database

through the IMS Universal JDBC Driver. This support allows you to

issue dynamic SQL calls such as basic CRUD operations on the IMS

database.

• IMS Connect Support allows distributed services to drive an IMS

transaction through DataPower.

Reduced Cost

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Usability/Simplification

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SECURITY Macro removed from SysGen

• System Definition macro SECURITY is no longer used as part of the IMS

system generation process

• Specify security settings through PROCLIB members

• RCLASS parameter added to DFSPBxxx

– RCLASS also supported in DFSDCxxx

– DFSPBxxx RCLASS parameter value overrides DFSDCxxx if both specified

• SECCNT parameter added to DFSDCxxx

• Other Security settings continue to be specified in DFSPBxxx

– SECLVL parameter is replaced by RCF, TRN and SGN in DFSPBxxx

– TYPE parameter is replaced by ISIS in DFSPBxxx

Benefits:

• Simplified system generation process

• Easier method to update security related settings

Reduced Time

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Security User Exits removed from Nucleus

• User exits DFSCSGN0 (Signon/Signoff), DFSCTRN0 (Tran.

Authorization) and DFSCTSE0 (Security Reverification) now

linked separately, loaded from STEPLIB (if present) into 31-

bit storage

• New DFS1937I message indicates which user exits have been loaded

– Can be used in automation to ensure that exits are being used

• DFSCSGN0 now called at IMS initialization

– Storage can be obtained and shared with the other exits using a new

parameter that contains the storage address

Benefits:

• Simplifies process to customize IMS with user exits

• Simplifies writing of user exit DFSCSGN0

• Reduces 24-bit private virtual storage usage

Reduced Time

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User exit enhancements

• Build Security Environment User Exit (BSEX)

• Log Record Edit User Exit (LOGEDIT)

• Logger User Exit (LOGWRT)

• Non-Discardable Messages User Exit (NDMX)

• OTMA Input/Output User Exit (OTMAIOED)

• OTMA Security User Exit (OTMARTUX)

• OTMA Destination Resolution User Exit (OTMAYPRX)

• Resource Access Security User Exit (RASE)

Reduced Time

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User exit enhancements …

• The enhanced user exit services provide you the ability to:

– Use the REFRESH USEREXIT command to bring in a new copy of a user

exit routine without bringing IMS down

– Use the QUERY USEREXIT command to display information about the

user exit

– Define multiple user exit routines that are called for a user exit type

Benefits:

• Simplifies process for User exit Maintenance

Reduced Time

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IMS Explorer for Development

• Catalog Navigation View

• A new Eclipse view that will allow you to navigate through the PSBs/DBDs on a given IMS catalog.

• Invoke queries like

– "What DBDs are referenced by this PSB" or

– "What PSBs reference this DBD".

• You will be able to filter the list of PSBs/DBDs using a search dialog wherein you can provide a portion of a resource name and any resource containing that substring will be listed in the search results view.

• Productivity aid for DBAs and IMS application Programmers

Reduced Time

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IMS Explorer for Development

• Catalog Navigation View

Reduced Time

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IMS Explorer for Development

• IMS Transaction Unit Test Support

• A Transaction editor, a Test Case editor, and runtime console will be provided.

• The tooling enables the user to define transaction attributes and provide transaction input messages in human readable format.

• The tooling will automatically handle the data conversion and send the message payload to IMS to invoke a given transaction.

• The user will be able to easily duplicate existing test cases and tweak input messages in order to exercise different code paths within their applications.

• Used in conjunction with the Debug tool it will be a powerful tool set for developing, maintaining, and debugging IMS transactions.

• Productivity aid for IMS application programmers

Reduced Time

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IMS Explorer for Development

• IMS Transaction Unit Test Support

Reduced Time

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IMS Explorer for Administration

• A replacement for IMS Control Center.

• A web-based console to operate and administer IMS.

• IMS Explorer for Administration can query, start, and stop IMS resources from an

easy-to-use browser interface.

• It can discover IMS resources, show the health of the resources, and show relationships between them.

– Resources can be filtered and context sensitive help is provided.

• IMS Explorer for Administration is available through APAR PM94292 as an extension of the Administration Console component of IBM Tools Base for z/OS, V1.4 (5655-V93).

Reduced Time

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IMS Resource Relationships

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Acknowledgements and Disclaimers

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Thank You!