Migrating to zOS R8 Part 1 - Messmer The Brain House

Migrating to z/OS R8 Part 1 of 3: Get Ready
Functions Planned to be Withdrawn
in the release after R8...
Host communication between HCM
and HCD with APPC (from HCM)
In-stack version of TN3270 Server
(from Communications Server)
APPC Application Suite in
Communications Server
Run-time support for applications
that use the C/C++ IBM Open Class
(IOC) Dynamic Link Libraries (DLLs).
Priced Feature - Only TCP/IP for host communication
between HCM and HCD will be allowed. (Currently both
TCP/IP and APPC are supported.)
Base Element - use standalone TN3270 Server instead
(introduced in z/OS R6)
Base Element - more full-featured alternative applications
exist in modern integrated SNA/IP networks. (APPC itself
remains an integral part of SNA functions, and no plans to
remove APPC from z/OS.)
Priced Feature - Any application code that uses the IOC
Library should migrate to use the Standard C++ Library
Migrating to z/OS R8 Part 1 of 3: Get Ready
= don't overlook!
Planned for
release in
2007
Planned for
relase in
2007
Planned for
release in
2007
Planned for
release in
2007
© 2003 IBM CorporationfInfInInfo
© 2006 IBM Corporation
Planned for removal in the release following z/OS R8
This section lists items that IBM has announced it intends to remove in release following z/OS R8. You are encouraged to
consider these removals when making your plans for system upgrades. These statements represent IBM's current
intentions. IBM development plans are subject to change or withdrawal without further notice.
� z/OS R8 is planned to be the last release that supports host communication between Hardware Configuration
Manager (HCM) and Hardware Configuration Dialog (HCD) elements via Advanced Program to Program
Communication (APPC). Today for host communication either Transmission Control Protocol/Internet Protocol
(TCP/IP) or APPC are supported. Starting with the z/OS release available in 2007, the host communication will be
done exclusively via TCP/IP.
� z/OS V1R6 Communications Server and subsequent releases include a standalone TN3270 Server. This standalone
TN3270 server is expected to provide increased flexibility, improved reliability, and simplified problem diagnosis as
compared to the in-stack version of the TN3270 Server. z/OS V1.8 is planned to be the last release of z/OS
Communications Server which will support the in-stack version of the TN3270 Server. After z/OS V1.8 this capability
will be removed from the product. In preparation for that change, customers should consider implementing the
standalone TN3270 Server. For more information, refer to
http://www.ibm.com/software/network/commserver/zos/
� The APPC Application Suite is a set of common applications originally designed to enhance the value of SNA
networks for end users. Since more full-featured alternative applications exist in modern integrated SNA/IP networks,
z/OS V1.8 is planned to be the last release of z/OS Communications Server which will include the APPC Application
Suite. After z/OS V1.8 the APPC Application Suite will no longer be shipped with the product, and will not be
supported. However, note that APPC itself remains an integral part of z/OS Communications Server's SNA functions,
and there are no plans to remove APPC from z/OS. For more information please refer to
http://www.ibm.com/software/network/commserver/zos/
� z/OS R8 is planned to be the last release to include the C/C++ IBM Open Class (IOC) Dynamic Link Libraries (DLLs).
Application development support for the C/C++ IOC Library was withdrawn in z/OS V1.5. The run-time support (DLLs)
for applications that use the IOC Library is planned to be removed in the z/OS release available in 2007. Applications
that are dependent on the IOC Library will not run starting with the z/OS release available in 2007. IBM has previously
SHARE (c) Copyright IBM Corporation, 2006 August 15, 2006
Session 2870 Page 13 of 70 Baltimore, MD
11