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to SYSLST, access to CICS system control blocks. You should consider what
impact each of the removed service or support will have on your migration.
Macro-level programs
You need to convert macro-level programs to command level. Please
account for and anticipate the additional CPU requirements for the
converted programs.
BTAM devices and controllers
As an alternative consider the supported devices of ACF/VTAM
and/or TCP/IP. TCP/IP communications are also supported using
either the ONC RPC function or the CICS Web interface. Please
review the
CICS ONC RPC Guide
, SC33-1778 and
CICS Internet and
External Interface
, SC33-1944 for more detail on the concepts and use
of ONC RPC.
CICS internal security and signon table
Since the internal security signon table is no longer supported, you
can migrate user data from an existing signon table (SNT) to the
RACF database.
If you are using CICS for VSE/ESA 2.3, you can use the security
migration aid to assist you with the migration of your CICS internal
security definitions to an environment where their resource(s) can be
defined with RACF.
Nucleus load table
CICS management modules are restructured into DOMAINS. In the
process, CICS removed this function.
Application load table
CICS management modules are restructured into DOMAINS. Thus,
CICS removed the possibility of you aligning application programs.
You can still specify program residency via the RDO. However, you
should review the Resource Definition Guide to get a better
understanding as to where this parameter is applicable.
Journaling to tape service
CICS TS Support for single MVS image systems is through DASD
logging. DASD logging is for single image in sysplex configurations
without a coupling facility (non-parallel sysplex) and stand-alone
OS/390 systems (single-system sysplex). Also, CICS TS supports
coupling facility logging. The point to remember is that you must
review your journaling requirements and operation procedure for
CICS TS journal support.
Shutdown statistics to SYSLST
There are numerous changes to CICS statistics records, generally as
a result of the new domains created in CICS/ESA, such as the
transaction manager domain. As a result, a number of statistics
DSECTs, previously supplied as copybooks, are obsolete and
withdrawn. Therefore, you should consider alternatives to printing
CICS shutdown statistics.
There is a PLT program in SDFSAMP called DFH$STED which can be
placed in the startup PLT to stagger writing shutdown or interval
statistic to SMF. You should note that without this staggering, you
could experience a significant performance problem if interval stats or
shutdown occurs in many regions at the same time.
Chapter 6. CICS 137