IBM SC34-7012-01 manual Monitoring and statistics, Terminal control resources, VTAM devices

If you define new resource definitions and install them dynamically, ensure the group containing the resources is added to the appropriate group list.

Monitoring and statistics

The initial status of CICS monitoring is determined by the monitoring system initialization parameters (MN and MNxxxx).

The initial recording status for CICS statistics is determined by the statistics system initialization parameter (STATRCD). If STATRCD=ON is specified, interval statistics are recorded at the default interval of every three hours.

Terminal control resources

All previous terminal control information stored in the global catalog warm keypoint is lost.

Terminal control resource definitions are installed as follows:

VTAM devices

All VTAM terminal resource definitions are installed from the CSD. The definitions to be installed are specified in groups named in the CSD group list, which is specified by the GRPLIST system initialization parameter. The resource definitions, of type TERMINAL and TYPETERM, include autoinstall model definitions as well as explicitly defined devices.

Connection, sessions, and profiles

All connection and sessions definitions are installed from the CSD. The definitions to be installed are specified in groups named in the CSD group list, which is specified by the GRPLIST system initialization parameter. The connections and sessions resource definitions include those used for APPC autoinstall of parallel and single sessions, as well as explicitly defined connections.

TCAM and sequential devices

All TCAM and sequential (BSAM) device terminal resource definitions are installed from the terminal control table specified by the TCT system initialization parameter. CICS loads the table from the load library defined in the DFHRPL library concatenation. CICS TS for z/OS, Version 4.1

Note: supports only remote TCAM terminals—that is, the only TCAM terminals you can define are those attached to a remote, pre-CICS TS 3.1, terminal-owning region by TCAM/DCB.

Resource definitions for TCAM and BSAM terminals are not cataloged at install time. They are cataloged only in the terminal control warm keypoint during a normal shutdown.

Committing and cataloging resources installed from the CSD

CICS has two ways of installing and committing terminal resource definitions. Some resource definitions can be installed in groups or individually and are committed at the individual resource level, whereas some VTAM terminal control resource definitions must be installed in groups and are committed in “installable sets”.

Single resource install

All except the resources that are installed in installable sets are committed individually. CICS writes each single resource definition to the global catalog as the resource is installed. If a definition fails, it is not written to the catalog (and therefore is not recovered at a restart).

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