LETNO ZP88-0218
DATE 880419
Programming Announcement
TITLE TSO EXTENSIONS (TSO/E) VERSION 2
o 5685-025
ABSTRACT IBM announces TSO Extensions Version 2, which provides the
INTERACTIVE capability for MVS/System Product (TM) Version 3,
including all the functions of TSO/E Version 1, and many
significant new functions.
TEXT TSO/E Version 2 will be the base for future Systems Application
Architecture (SAA) enhancements in TSO. To enhance that
environment, TSO/E Version 2 supports the Restructured Extended
Executor (REXX) language. TSO/E Version 2 also uses the Virtual
Lookaside Facility (VLF) to provide performance enhancements to
CLISTs. TSO/E Version 2 takes advantage of the new Enterprise
Systems Architecture/370 (ESA/370 (TM)).
PLANNED GENERAL AVAILABILITY:
MVS/ESA Feature: Fourth Quarter, 1988
MVS/XA Feature : First Quarter, 1989
National Language Support (NLS) translations will be available
Second Quarter, 1989.
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* IBM PROGRAMMING INFORMATION APRIL 1988 *
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* IBM PROGRAMMING INFORMATION *
* for Europe, the Middle East *
* IBM PROGRAMMING INFORMATION and Africa. *
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* This document is provided as general customer information *
* only. IBM products and services which are announced and *
* available in your country can be ordered under the applicable *
* standard agreements, terms, conditions and prices in effect *
* at the time. For further information please contact your *
* local IBM representative. *
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ZP88-0218
TSO EXTENSIONS (TSO/E) VERSION 2
o 5685-025
IBM announces TSO Extensions Version 2, which provides the
INTERACTIVE capability for MVS/System Product (TM) Version 3,
including all the functions of TSO/E Version 1, and many
significant new functions.
TSO/E Version 2 will be the base for future Systems Application
Architecture (SAA) enhancements in TSO. To enhance that
environment, TSO/E Version 2 supports the Restructured Extended
Executor (REXX) language. TSO/E Version 2 also uses the Virtual
Lookaside Facility (VLF) to provide performance enhancements to
CLISTs. TSO Extensions Version 2 takes advantage of the new
Enterprise Systems Architecture/370 (ESA/370 (TM)).
HIGHLIGHTS
o TSO/E Version 2 MVS/ESA Feature
- REXX language support
- Utilization of Enterprise Systems Architecture/370 (ESA/370)
- Installation simplification enhancements, including DYNAMIC
updates
- Enhancements to the Application Manager function of the
Information Center Facility
- Additional MVS/ESA Feature enhancements
o TSO/E Version 2 MVS/XA Feature
- REXX language support
- Additional enhancements
MVS/ESA FEATURE DESCRIPTION
REXX
TSO Extensions Version 2 provides REXX language support for users
in the TSO/E environment as well as MVS applications outside the
TSO/E environment. REXX, a high-level procedural language,
enables programmers to intermix REXX instructions and TSO/E
commands in programs called EXECs. EXECs and CLISTs can be
combined in an application, call each other and can call and be
called by existing CLISTs and TSO/E programs. REXX is an
attractive alternative to the CLIST language, as the REXX EXECs
are much easier to code, yielding greater programming
productivity.
The procedures interface for Systems Application Architecture
(SAA) is a subset of REXX, therefore the elements of REXX that
are listed in the procedures interface are easily portable across
IBM systems.
UTILIZATION OF ESA/370
TSO Extensions Version 2 takes advantage of, and supports the new
Enterprise Systems Architecture/370 (ESA/370). Use of the
Virtual Lookaside Facility (VLF) in CLIST and REXX processing
helps to reduce data set I/O and DASD contention. TEST command
enhancements enable users to test and debug programs that use
Advanced Address Space Facilities.
For detailed information of ESA/370 refer to Programming
Announcements Enterprise Systems Architecture/370 and MVS/System
Product Version 3 (ZP88-0153) dated February 15, 1988, and
MVS/System Product Version 3 Release 1.0 dated April 19, 1988.
INSTALLATION SIMPLIFICATION
System programmers can list and DYNAMICALLY update TSO/E Version
2 defaults without having to re-IPL the MVS system.
A new Table Look-up service enables programmers to determine if a
given program or command is defined as authorized, its use is
prohibited in the background, or it is supported through the TSO
Service Routine.
INFORMATION CENTER FACILITY ENHANCEMENTS
The Application Manager administration dialogs have been enhanced
to allow administrators to create installation files from
existing applications, to replace applications without first
deleting them, and to specify the CLIST and REXX libraries
required by each application.
ADDITIONAL MVS/ESA FEATURE ENHANCEMENTS
DYNAMIC DEFINITION OF CLIST AND REXX EXEC LIBRARIES: The ALTLIB
command enables users to DYNAMICALLY define user or application
libraries containing CLISTs and REXX EXECs. Dynamic definition
of user and application libraries provides a potential
performance benefit by reducing the time it takes to search for
these libraries.
NEW EXITS: TSO/E Version 2 offers installations many
opportunities to customize their systems using new exits
associated with REXX processing.
TESTING APF-AUTHORIZED PROGRAMS: The TESTAUTH command provides,
in an APF-authorized environment, the functions that the TEST
command provides in a non-APF authorized environment.
DATA FACILITY STORAGE MANAGEMENT SUBSYSTEM (DFSMS): TSO
Extensions Version 2 supports the Data Facility Storage
Management Subsystem (DFSMS) function of the MVS/Data Facility
Product (MVS/DFP) (TM) Version 3 Product. Users can separate the
logical storage requirements from the physical device
characteristics when allocating a data set.
DYNAMIC DEFINITION AND FREEING OF OUTPUT DESCRIPTORS: TSO
Extensions Version 2 enables users to dynamically define and free
named sets of output descriptors.
CALL COMMAND The CALL Command processor is enhanced to support
SAA languages by enabling programs to pass parameters in upper
and lower case. This enhancement supports SAA as the C language
interface of SAA requires parameter lists to be mixed case.
MVS/XA FEATURE DESCRIPTION
REXX, Data Facility Storage Management Subsystem (DFSMS), Table
Look-up and Call Command functions are the same as the MVS/ESA
Feature, except that they do not utilize ESA/370.
NATIONAL LANGUAGE SUPPORT (NLS)
This product contains World Trade National Language Support for
eight (8) languages (Brazilian Portuguese, Danish, French,
German, Spanish, Kanji, Hanguel, and Traditional Chinese) for
both the MVS/ESA and MVS/XA Features.
PUBLICATIONS
For ordering information about publications that describe TSO
Extensions Version 2, see the TSO/E GENERAL INFORMATION manual,
GC28-1869, at general availability.
UNLICENSED DOCUMENTATION: A memo, program directory, and one copy
of the following publications are supplied automatically with the
basic machine- readable material:
Title Order Number
-------------- ------------
Introducing TSO Extensions Version 2 GC28-1868-00
TSO/E V 2 Library Guide GC28-1866-00
TSO/E V 2 Master Index GC28-1867-00
TSO/E V 2 General Information GC28-1869-00
TSO/E V 2 Licensed Program Specifications GC28-1870-00
TSO/E V 2 Customization SC28-1872-00
TSO/E V 2 Administration SC28-1873-00
TSO/E V 2 Programming Guide SC28-1874-00
TSO/E V 2 Programming Services SC28-1875-00
TSO/E V 2 CLISTs SC28-1876-00
TSO/E V 2 Programmers Guide to the SC28-1877-00
Server-Requester Programming Interface
TSO/E V 2 System Programming Command Ref SC28-1878-00
TSO/E V 2 Primer GC28-1879-00
TSO/E V 2 User's Guide SC28-1880-00
TSO/E V 2 Command Reference SC28-1881-00
TSO/E V 2 REXX User's Guide SC28-1882-00
TSO/E V 2 REXX Reference SC28-1883-00
VM/PC User's Guide for MVS Host Services SC28-1884-00
TSO/E V 2 VM/PC Commands for Host SV23-0003-00
Services (Diskette)
TSO Messages GC28-1885-00
TSO/E V 2 Quick Reference GX23-0026-00
TSO/E V 2 Directory of Programming GC28-1887-00
Interfaces for Customers
LICENSED DOCUMENTATION:
The following licensed material and microfiche will be available
from Copenhagen. To order, contact your IBM marketing
representative.
The first copy is available at no charge to licensees of basic
material.
Title Order Number
TSO/E System Diagnosis: LY28-1886-00
Guide and Index
TSO/E System Diagnosis: LY28-1887-00
REXX and CLIST
TSO/E System Diagnosis: LY28-1888-00
Command Processors A-L
TSO/E System Diagnosis: LY28-1889-00
Command Processors M-Z
TSO/E System Diagnosis: LY28-1890-00
Terminal Monitor Program
and Service Routines
TSO/E Session Manager LY28-1891-00
Logic Manual
TSO/E Data Areas LYB8-1892-00
TECHNICAL INFORMATION
SPECIFIED OPERATING ENVIRONMENT
MACHINE REQUIREMENTS:
HARDWARE REQUIREMENTS MVS/ESA FEATURE: TSO/E Version 2 will run
on any IBM processor supported by MVS/System Product Version 3.
TSO Extensions Version 2 operates on any IBM terminal currently
supported by MVS/System Product Version 3, and supported by IBM
Network Program Products as a TSO terminal. The full-screen
logon, the Interactive Data Transmission Facility, the Session
Manager, and the Information Center Facility support:
o IBM 3270 Information Display System Terminals
- 3275 Models 2 and 12
- 3276 Models 2, 3, 4, 12, 13, and 14
- 3277 Model 2
- 3278 Models 2, 3, 4, and 5
- 3279 Models 2A, 2B, 2X, 3A, 3B, 3X, S2A, S2B, and S3G (base
color mode).
o IBM 3178 Display Terminal Models C1, C2, C3, and C4
o IBM 3179 Display Terminal Model 1
o IBM 3179 Display Terminal Model G (Supported in alphanumeric
mode)
o IBM 3180 Display Terminal Models 100 and 110
o IBM 3191 Display Terminal Models A30, A40, B30, B40, D, E, and
L
o IBM 3192 Color Display Terminal Models A, B, C, D, F, G, L, and
W
o IBM 3194 Display Terminal
o IBM 3290 Information Panel
o IBM Personal Computer (configured for 3278/79 support)
o Any other IBM terminal that functions in compatibility mode
with the terminals listed above.
Notes:
o A minimum screen size of 24 lines by 80 characters is required.
o The following Information Center Facility supported licensed
programs have special terminal considerations. See the specific
program descriptions for details:
- GDDM (5748-XXH)
- Information Center Facility APL-based products
To fully use all the PRINTDS SYSOUT operands requires an IBM 3800
Printing Subsystem.
HARDWARE REQUIREMENTS MVS/XA FEATURE: TSO Extensions Version 2
will run on any IBM processor supported by the MVS/System Product
Version 2. TSO Extensions Version 2 operates on any IBM terminal
currently supported by MVS/System Product Version 2, and
supported by IBM Network Program Products as a TSO terminal. The
full-screen logon, the Interactive Data Transmission Facility,
the Session Manager, and the Information Center Facility support
is the same as the MVS/ESA Feature.
PROGRAMMING REQUIREMENTS:
SOFTWARE REQUIREMENTS MVS/ESA FEATURE: The TSO/E Version 2
MVS/ESA Feature requires MVS/System Product Version 3, Release
1.0, or later with its co-requisites.
TSO Extensions Version 2 Information Center Facility users
require ISPF Version 2 Release 3 (5665-319), or a subsequent
release of ISPF.
SOFTWARE REQUIREMENTS MVS/XA FEATURE: TSO Extensions Version 2
MVS/XA Feature requires MVS/SP Version 2, Release 2.0, or later,
with its co-requisites. Data Facility Storage Management
Subsystem (DFSMS) is supported 3Q89.
TSO Extensions Version 2 Information Center Facility users
require ISPF Version 2 Release 3 (5665-319), or a subsequent
release of ISPF.
COMPATIBILITY/MIGRATION:
TSO/E Version 2 is a complete replacement for TSO/E Version 1.
Most applications will run with no modifications, for either the
MVS/XA or the MVS/ESA Feature, except as noted below.
There may be some incompatibilities in migrating from TSO/E
Version 1 Release 4 to TSO/E Version 2 if user applications
create Stack Elements without using the TSO/E Stack Service.
PERFORMANCE CONSIDERATIONS:
Functional enhancements to both TSO/E Version 2 and MVS/SP
Version 3 provide potential for performance improvements for
installations running complex CLISTs with significant I/O
contention for CLIST libraries.
Significant improvements in processing of CLISTs has been
achieved through the use of a new MVS/SP Version 3 service,
Virtual Lookaside Facility (VLF). An internal representation of a
CLIST is stored in VLF via the Advanced Address Space Facilities
and is then retrieved and executed from VLF until the CLIST is
modified.
Measurements of various CLISTs in a test environment showed
improvements ranging from 10% to 90%.
USER GROUP REQUIREMENTS:
SATISFACTION OF USER REQUIREMENTS: TSO/E Version 2 addresses
numerous customer requests and satisfies (partially or fully) the
following requirements submitted by the designated IBM User
Group.
ENHANCEMENT USER REQUIREMENT
Authorized LOGON GUIDE GO1TSO85004
Authorized LOGOFF GUIDE GO1TSO85001
REXX SHARE SOMVSE85150
EUROP ESTSOS87007
Authorized testing SHARE SBMVSI83816
GUIDE GO1TSO85006
MVS Interactive Strategy GUIDE GO1TSO00102
Direction White Paper
Note: the above is shown in the original announcement letter format.