IBM OS/390 User Manual
CICS data table services
RDO for VSAM files and LSR pools
Some EXEC CICS system programming functions
Autoinstall terminal model manager
Partner resource manager
SAA Communications and Resource Recovery
Some of the file control functions
Recovery manager connectors interfaces.
RDO for VSAM files and LSR pools
Some EXEC CICS system programming functions
Autoinstall terminal model manager
Partner resource manager
SAA Communications and Resource Recovery
Some of the file control functions
Recovery manager connectors interfaces.
Domains never communicate directly with each other. Calls between domains
are routed through kernel linkage routines. Calls can be made only to official
interfaces to the domains, and they must use the correct protocols.
are routed through kernel linkage routines. Calls can be made only to official
interfaces to the domains, and they must use the correct protocols.
Each domain manages its own data. No domain accesses another domain
′
s data
directly. If a domain needs data belonging to another domain, it must call that
domain, and that domain then passes the data back in the caller
domain, and that domain then passes the data back in the caller
′
s parameter
area.
Now with the CICS restructuring in mind, here are a few other general system
items to consider with your migration:
items to consider with your migration:
•
CICS TS recovery manager facility uses the system log for recovery, thus an
intermediate data set, such as the restart data set (DFHRSD) is not required
for the CICS TS.
intermediate data set, such as the restart data set (DFHRSD) is not required
for the CICS TS.
•
CICS/ESA removed the assembly of a Process Program Table (PPT) and
Program Control Table (PCT) from the list of tasks to perform during the
migration and installation process of CICS. Now, program processing and
program control resource definitions must be defined and reside in the CSD.
Therefore, you must have a CSD defined in your CICS/ESA system, with all
the associated programs and transaction resources.
Program Control Table (PCT) from the list of tasks to perform during the
migration and installation process of CICS. Now, program processing and
program control resource definitions must be defined and reside in the CSD.
Therefore, you must have a CSD defined in your CICS/ESA system, with all
the associated programs and transaction resources.
•
The obsolete DFHPCT and DFHPPT macros are not shipped with CICS
Transaction Server. However, you are recommended not to migrate the PPT
entries to the CSD, but use the new autoinstall facility for programs and
MAPS instead.
Transaction Server. However, you are recommended not to migrate the PPT
entries to the CSD, but use the new autoinstall facility for programs and
MAPS instead.
•
CICS no longer supports the use of the file control table for VSAM object
files, data tables, or shared resource pools. Resource definitions for these
VSAM objects can be defined in, and installed from, the CICS system
definition (CSD) data set only. CICS/ESA installs only BDAM file definitions
from the FCT.
files, data tables, or shared resource pools. Resource definitions for these
VSAM objects can be defined in, and installed from, the CICS system
definition (CSD) data set only. CICS/ESA installs only BDAM file definitions
from the FCT.
6.1.6 CICS Macro Resource Definition Table Changes
Below are commonly identifiable changes required to migrate a CICS/VSE
system to CICS TS macro resource definition. These parameters listed below
should be viewed as a reminder of items to consider, and not as an inclusive list
of parameter changes and/or obsolescence. You should review the
system to CICS TS macro resource definition. These parameters listed below
should be viewed as a reminder of items to consider, and not as an inclusive list
of parameter changes and/or obsolescence. You should review the
CICS Macro
Definition, SC33-1648 manual for full details of parameters required for the
different macro resources and the
different macro resources and the
CICS System Definition Guide, SC33-1682 for
the System Initialization parameters.
ALT
is obsolete, restructuring of CICS eliminates application load table.
DCT
Migrate DCT entries to the CSD. It is imperative to use the new DCT
supplied definitions. There are some new entries, that if not chosen
could cause the disappearance of messages. One such queue is
CDUL, where dump information is written.
supplied definitions. There are some new entries, that if not chosen
could cause the disappearance of messages. One such queue is
CDUL, where dump information is written.
140
VSE to OS/390 Migration Workbook