IBM SYSTEM/390 OVERVIEW: A NEW ERA BEGINS
Contents


Announcement Letter Number 190-123 dated September 5, 1990
US - Last Revised on September 5, 1990



Brief Description of Announcement, Charges, and Availability

       To meet the business challenges and opportunities for
customers around the world, IBM announces the IBM System/390 (TM)
(S/390 (TM)) -- encompassing the broadest range of products and
solutions offered in IBM's history.
       The System/390 significantly extends the range and reach of
customers, opening doors in enterprise data, connectivity and
networking, systems management, security, transaction processing,
technical computing, application development, and application
solutions.  The System/390 leverages the power of the programmable
workstation, introduces a platform for growth in information systems,
provides innovative technologies, and enhances customer investments
in System/370 (TM) hardware and software.
 (TM) Trademark of International Business Machines Corporation.


Customer Letter Section

INTRODUCTION
The System/390 is a new environment that has evolved from the
System/360 (TM) and System/370 of the past.  By enabling new
functions, increasing performance, and enhancing connectivity,
networking, and interoperability, the System/390 is aimed directly at
the specific requirements of IBM customers and at the increasing
integration of information systems into customer business systems and
their strategies for competitiveness.
HIGHLIGHTS
       The System/390 announcement includes:
o   Enterprise System/9000 (TM) (ES/9000 (TM)) family of processors
    -- a single line of air- and water-cooled processors, 18 models
    in all
o   Enterprise Systems Architecture/390 (TM) (ESA/390 (TM)),
    specifically designed for the System/390 environment, including:
    -   Enterprise Systems Connection Architecture (TM) (ESCON (TM))
        -- with fiber optic channels and a range of new products that
        enhance systems planning and implementation flexibility, as
        well as provide for less disruptive dynamic configuration
        change
    -   IBM Common Cryptographic Architecture, with new levels of
        system, network, and workstation security
    -   A new architecture providing data spaces for the VM
        environment
o   MVS/ESA (TM), VM/ESA (TM), VSE/ESA (TM) -- Enterprise Systems
    Architecture throughout a family of new operating systems
o   3172 Interconnect Controller and VTAM (TM) enhancements for
    improved local area network (LAN) integration and management,
    including links to remote systems
o   New releases of DB2 (TM) and SQL/DS -- providing the next step
    for SAA (TM) distributed data to allow access to data whenever
    and wherever needed
o   IBM SystemView (TM) -- enhancing the management of systems and
    defining a structure for systems management products
o   Plus many more functions, features, and application solutions for
    the System/390 environment.
       The IBM System/390 is IBM's complete enterprise-wide system
for the 90s, laying the foundation for growth with a new generation
of IBM information systems.  The IBM System/390 . . .  a new era
begins.
DESCRIPTION
SINGLE FAMILY OF SYSTEMS
Today IBM announces a single System/390 family of processors called
the ES/9000.  This new family is upward compatible with System/370
systems, and offers additional functions and new architecture support
through ESA/390, further extending capability and performance.
       The ES/9000 family covers a broad performance range and offers
over a 100-fold growth path for commercial applications, and over
200-fold for scientific applications, from the smallest to the
largest model of the line.
       There are 18 models in the family, 10 air-cooled and eight
water-cooled.  All models support a common architecture, ESA/390, and
many of the features and functions are common throughout the line,
such as:
o   ESCON channels, to deliver the advantages of the new input/output
    (I/O) architecture and fiber optic medium -- increased distances,
    higher data rates, and less cable weight and bulk
o   Integrated Cryptographic Feature for water-cooled models, to
    implement a common architecture and deliver performance an order
    of magnitude greater than current capability
o   PR/SM (TM), which is standard on all models and allows multiple
    logical systems images, such as production, development, and
    test, to run concurrently on a single system
o   Improvements in scientific and technical computing, made
    throughout the family, that include the introduction of vector
    capability on some air-cooled models.
       The ES/9000 processor family offers many upgrade options from
existing systems, enhancing the IBM systems investment.
NEW I/O ARCHITECTURE
Today's announcements include the first major advance in channel
architecture since the System/360, Enterprise Systems Connection
Architecture (ESCON), implemented through a new medium of fiber optic
technology, and a broad range of products and services, creating new
opportunities while removing constraints.  The technology enables
substantially greater distances to be supported for channel
attachments, allowing campus installations for processors, and I/O
devices.  Fiber optic links also provide a large reduction in weight
and bulk and increased flexibility as compared to today's copper
cables.
       IBM is building a comprehensive new environment for
connectivity, consisting of new software, hardware, and connecting
devices, as well as enhancements to existing products.  For example,
IBM introduces the new IBM ESCON Director which gives the ability to
dynamically switch channel-to-control-unit (or channel-to-channel)
connections among several paths.  The benefits are decreased number
of links, enhanced flexibility, and better management and
availability.  There's also an IBM service offering to help implement
this new architecture and its components.
ESA/390 FAMILY OF OPERATING SYSTEMS
Together with the ES/9000 processor family, IBM is introducing a
common family of operating systems.  These new operating systems
exploit the capabilities and functions on the ES/9000 family and are
based on Systems Application Architecture (TM) (SAA) and ESA/390.
The common ESA/390 architecture improves the portability of
applications from small to large systems and the cooperation of
applications in different systems.
       VSE/ESA Version 1 removes growth constraints, offers new
capabilities for applications, and greatly expands its affinity with
MVS/ESA.  Increased capacity is provided through support of more
virtual and real storage and channels.  PR/SM can enhance support for
development and test environments, while I/O enhancements can improve
data access.  Transaction processing is enhanced with a new version
of CICS/VSE (TM) and incorporation of the Extended Recovery Facility
(XRF), designed to provide enhanced availability for CICS/VSE
applications.  Management of distributed environments is improved
through VSE/DSNX; and, through a subset of MVS/ESA SAA functions,
including COBOL II language support, the ability to develop
consistent applications across platforms is greatly enhanced.
       MVS/ESA SP Version 4 provides new functions and enhancements
that extend growth potential and manageability.  APPC/MVS with SAA
CPI Communications support provides LU6.2 connectivity and can allow
cooperative workstation applications to more effectively take
advantage of MVS application services to deliver new business
solutions.  ESCON channel support and dynamic reconfiguration
management allow configuration changes with minimal disruption.
Multisystem coupling, or sysplex, can provide more effective resource
sharing, horizontal growth, and better availability, while console
consolidation allows simplified operation of a system complex.
       VM/ESA Version 1 consolidates the previous VM systems into a
single platform and provides a significant amount of new function,
along with new levels of performance and throughput.  A new
implementation of data in memory concepts is achieved through the use
of VM Data Spaces, providing virtually unlimited data addressability
on the ES/9000 line of processors.  VM/ESA utilizing data in memory
concepts and expanded storage for the Shared File System (SFS) can
realize performance gains.  There are also significant improvements
in performance for SQL/DS.  Workstation Data Save Facility/VM
enhances workstation management with the ability to automatically
backup and archive workstation data to the VM system; while IBM SAA
Delivery Manager/VM allows customizing, controlling, and delivering
programs and data files from the host to programmable workstations.
In addition, cooperative processing is improved with VM/ESA.
       Along with the S/390 family of operating systems, other
specialized IBM operating systems, such as DPPX/370 and AIX (R)/370,
will also be supported on selected models of the new ES/9000
processors.
 (TM) Trademark of International Business Machines Corporation.
 (R) Registered trademark of International Business Machines

   Corporation.
ENTERPRISE COMPUTING
Building on the foundation of new architecture, technology, systems
software, and hardware, IBM is announcing advances in major
functional areas that are key to implementing enterprise-wide
solutions.  The areas encompass data management, networking, systems
management, security, transaction processing, client/ server
computing, and application development.  These advances, together
with the S/390 foundation, offer a broad framework for implementing
new or improving existing solutions to enable an integrated
enterprise system.
ENTERPRISE DATA:  Today IBM is introducing new data base management,
query, and systems management solutions to allow enterprise-wide
access to data and to deliver information quickly whenever and
wherever it is needed.  As information systems become more integrated
with the operation of the business, flexible management and easy
access to data are essential.  The facilities announced today are
designed to address these needs, which include:
o   Full-function data management systems that can support a broad
    spectrum of applications
o   Easy access to data distributed across the enterprise
o   Ability to use existing data and applications as new applications
    and new technologies are implemented
o   Increased productivity of end users and information systems
    personnel.
In response to these needs, IBM is announcing the following
capabilities:
o   The next step in the delivery of SAA distributed data base
    management allows data to be accessed from both DB2 and SQL/DS
    relational data bases on multiple systems.
o   Easy access to distributed relational data across multiple
    systems is provided by new distributed retrieval functions in
    Query Management Facility (QMF (TM)).
o   Significant improvements in productivity and availability of
    information are provided by the new SAA LanguageAccess natural
    language query product, which permits end users to request
    information in their own words.
o   Current, consistent data can be maintained in both an IMS/ESA
    (TM) data base and a DB2 data base by using the new Data
    Propagator (TM) product.
o   Improved performance, availability, and systems management
    operations are provided by enhancements to the DB2, SQL/DS, and
    IMS/ESA data base management systems.
       These facilities provide increased flexibility to enable
customers to select the computer system best suited for specific
applications and environments while still allowing integration of
information systems processes across the enterprise.
NETWORKING:  Networking enables end users to easily access and share
information and resources across heterogeneous multivendor systems
and workstations.  Today, IBM is announcing functions and products
that help customers implement an integrated enterprise information
system to reduce costs, improve services offered to their customers,
and increase their competitiveness.  These announcements include:
o   Multivendor network integration functions that facilitate
    customer exploitation of existing resources and expand support
    for open systems interconnection (OSI), TCP/IP, and Systems
    Network Architecture (SNA) standards and architectures
o   Network performance and connectivity enhancements with a new 3172
    Interconnect Controller and 3174 Establishment Controller
    features and functions, a 3745 capacity improvement, and VTAM
    enhancements
o   Availability enhancements, through NCP and VTAM improvements,
    which improve productivity, reduce application restart time,
    allow more dynamic network definition, and increase network
    configuration flexibility
o   System management enhancements that improve installability,
    useability, and maintainability of the network, including NetView
    (R), VTAM, and NPM plus additional hardware and software
    facilities
o   Network flexibility enhancements for adaptability, including
    ESCON channel connectivity, VTAM improvements for VM, VSE, and
    MVS, a new 3299 Multiplexer, and multisystem capabilities.
       The IBM networking solution enables an integrated enterprise
information system using an architectural approach integrated with
worldwide accepted standards and built on a flexible, expandable
platform of application interfaces, systems, and architectures to
react quickly to initiatives and respond to competition.
SYSTEMS MANAGEMENT:  Today, IBM introduces its enterprise-wide
systems management strategy for SAA, AIX, VSE, and other IBM and
non-IBM environments.  This strategy consists of the SystemView
structure and SystemView conforming products, and can assist
customers by improving the productivity involved with managing their
information processing environment.
       The structure consists of three complementary elements, called
dimensions, that are designed to provide a customer with a consistent
user interface, shared systems management data, increased
integration, and enhanced automation among systems management
products.
o   The end-use dimension provides the user at a workstation with a
    consistent, user-friendly view of applications.
o   The application dimension defines guidelines for the
    implementation and integration of systems management
    applications.
o   The data dimension addresses requirements for standardized data
    definitions and accessing systems management data.
       This announcement includes:
o   A comprehensive structure for enterprise-wide systems management
o   Support for SAA and other environments such as SAA-AIX
    interoperability and for key industry standards such as OSI,
    TCP/IP, and SNA
o   New or enhanced products providing increased integration and
    automation.
       SystemView environments can range from small standalone LANs,
through large multiprocessor systems at a single or multiple sites.
Support for open standards will extend SystemView coverage to the
broadest range of information processing resources within a customer
enterprise.
       Today's announcement demonstrates IBM's continued commitment
and leadership in providing systems management solutions that result
in a more cost-effective and efficient way to manage diverse
information systems in an enterprise.
SYSTEMS SECURITY:  Today, IBM is expanding its security solutions for
systems, networks, and programmable workstations; and extending
security leadership in cryptography, anti-virus measures, and US
Department of Defense (DoD) trusted systems by providing offerings
that enable an organization to fully utilize its information and
processing resources for new business opportunities.
o   Each SAA operating environment will provide security facilities
    for identification and authentication, access control,
    confidentiality, data integrity, and security management, to
    allow flexibility in selecting the appropriate controls for the
    needs of the business.
o   Extensive security support is provided for programmable
    workstations through an IBM Business Partner product designed to
    work with our currently available security products.
o   IBM is extending its commitment to system integrity to the OS/400
    (R) systems environment and intends to provide a system integrity
    statement for the OS/2 (R) environment as well.
o   IBM is also extending security facilities that offer user
    identification, user authentication, access control,
    confidentiality, data integrity, and security management.  There
    are enhancements for OS/2, PC/DOS, TCP/IP, VTAM, OS/400, CICS/ESA
    (TM), DB2, IMS/ESA, MVS/ESA, AIX, VM/ESA, and PR/SM.
o   The IBM Common Cryptographic Architecture ensures consistent
    implementation of confidentiality and data integrity across
    selected IBM platforms.
       Our security solutions may be tailored to support the
organization's business objectives, and are designed to allow an
organization to address the risks and costs associated with
protection of information assets.
TRANSACTION PROCESSING:  IBM is a leader in providing a full range of
integrated transaction processing solutions.  Today's announcements
further improve IBM's leadership position in transaction processing
through enhancements to distributed data, availability, performance,
and systems management.
o   SAA distributed data capability is improved through SQL/DS
    Version 3 Release 3 (under VM) and DB2 Version 2 Release 3,
    including the ability for interoperation.  In addition,
    coexistence of IMS hierarchical data bases and DB2 relational
    data bases is made easier with a new product that allows for
    automatic synchronization.  This provides for new decision
    support applications to be developed using a relational model,
    yet still protects the current investment in existing programs
    utilizing the hierarchical model.
o   The new ESCON support, MVS/ESA SP Version 4, and selected ES/9000
    processors allow for minimal disruption during configuration
    changes.  In addition, enhancements to DB2, IMS/ESA, and CICS/ESA
    in reorganization and resource definition further improve systems
    availability.
o   Combined hardware and software improvements for  DB2, CICS/ESA,
    and IMS/ESA for MVS/ESA environments, plus CICS/VSE and SQL/DS
    for VSE/ESA environments, provide significant additional capacity
    and transaction performance.
o   Management of transaction processing systems is  improved with
    today's security offerings, multisystems, recovery, and logical
    partitioning enhancements.
       Transaction processing is a vital part of daily business
operations, and can be a useful tool for customers in achieving a
competitive edge in the market.
CLIENT/SERVER COMPUTING:  Today's announcements combined with recent
product announcements further extend the facilities available to
support the enterprise Client/Server Computing environment and focus
on the role that IBM hosts can play as enterprise servers in
providing services to workgroups.  The following are enhancements to
workgroup operational services from an enterprise server.
o   Backup/archive capabilities include Workstation Data Save
    Facility/VM and allow workgroup data to be stored on an
    enterprise server.
o   LAN management functions permit workstation devices and servers
    to provide dynamic configuration and routing capabilities.
    Problem management facilities are enhanced to facilitate problem
    resolution and provide automatic recording of LAN problems, and
    the capability to identify performance bottlenecks and resolve
    problems on the LAN is enhanced.  Also, a mechanism to allow
    remote control or monitoring of a LAN from a central site is
    provided, reducing the requirement for system programming
    expertise to reside with each workgroup.
o   Software distribution enhancements include SAA Delivery Manager
    and provide the ability to distribute and control software from a
    centralized facility with powerful accounting and administrative
    functions.
       These new facilities significantly reduce the personnel effort
required to perform LAN operational tasks as well as greatly improve
the management capabilities of workgroup LANs.
       In LAN networking, additional capabilities are provided for:
o   Improved performance and function for LAN attachments to
    enterprise servers and LAN-to-LAN connections via wide area
    networks, and
o   Enhanced multivendor support.
       These announcements coupled with previous product enhancements
work together to help our customers integrate workstations in their
enterprise.  IBM's product evolution will continue in support of the
entire enterprise computing complex.  We have today and will continue
to have the full range of products which makes IBM the 'enterprise
to have the full range of products which makes IBM the 'enterprise
integrator.'
integrator.'
APPLICATION DEVELOPMENT:  On September 19, 1989, IBM introduced
AD/Cycle (TM) for SAA as a vision for application development and
maintenance in the 90s, an evolving set  of solutions for application
development and maintenance, and an architecture that would provide
the framework around which the products and solutions could be
integrated.  Since then IBM and its business partners have delivered
numerous products as part of AD/Cycle.  Today, IBM is announcing the
next step in the functional evolution of its application development
strategy.  New or extended functions announced today are:
o   A new release of Repository Manager (TM)/MVS that extends
    repository services to programmable workstations
o   A new release of Software Analysis Test Tool that provides
    additional test coverage by adding support  for the following
    languages: RPG/400 (R), COBOL/400 (TM), C/400 (TM), and C/370
o   A new release of Workstation Interactive Test Tool that provides
    an improved user interface which will enhance useability and
    productivity
o   A new release of VS COBOL II with SAA support for VSE/ESA and its
    associated CICS/VSE environment.
       These announcements will enable enhanced programmer
productivity, improved useability, and easier and better quality
testing for application development.
SUMMARY
Today's announcements are designed to enable enterprises to:
o   Get the information needed to make rapid decisions and respond
    quickly
o   Simplify access to resources, facilities, and systems
o   Protect against the increased corporate security risks that
    accompany information exchange within and beyond enterprise
    boundaries
o   More easily manage multiple central, remote, and backup system
    sites and complex communications technologies
o   Exploit competitive-edge application and networking opportunities
o   Protect current investments in skills and technology, while
    enabling significant growth.
       This announcement introduces a comprehensive set of
architectures, strategies, and products that address a broad spectrum
of information technology needs.
RELATED OVERVIEWS
o   IBM ES/9000 Processor Overview, Product Announcement 190-124
o   IBM Enterprise Systems Connection Architecture Overview, Product
    Announcement 190-134
o   IBM VSE/Enterprise Systems Architecture Version 1 Release 1,
    Programming Announcement 290-513
o   IBM MVS/ESA System Product Version 4 Overview, Programming
    Announcement 290-487
o   Virtual Machine/Enterprise Systems Architecture Version 1
    Release 1.0 and Version 1 Release 1.1, Programming Announcement
    290-499
o   Enterprise Data Overview, Programming Announcement 290-522
o   IBM Networking Overview, Product Announcement 190-142
o   IBM SystemView, Programming Announcement 290-539
o   IBM Systems Security, Programming Announcement 290-546
o   IBM Enterprise Transaction Management for the 1990s -- Overview,
    Programming Announcement 290-518
o   Client/Server Computing -- Overview, Programming Announcement
    290-549
o   AD/Cycle: IBM's SAA Application Development Solution, Programming
    Announcement 290-529
o   IBM SAA ImagePlus (R) MVS/ESA Overview, Programming Announcement
    290-576
o   Scientific and Technical Computing Overview, Programming
    Announcement 290-548
o   IBM SAA Overview: Architecture Expanded and Implementing Products
    Announced, Programming Announcement 290-536