IBM SC34-7012-01 manual CSD-defined resource definitions, TCAM and sequential BSAM devices

Journal names and journal models

The CICS log manager restores the journal name and journal model definitions from the global catalog. Journal name entries contain the names of the log streams used in the previous run, and the log manager reconnects to these during the warm restart.

Terminal control resources

Terminal control information is installed from the warm keypoint in the global catalog, or installed from the terminal control table (TCT), depending on whether the resources are CSD-defined or TCT-defined.

CSD-defined resource definitions

When resources are defined in the CICS System Definition data set (CSD), terminal control information is installed from the warm keypoint in the global catalog.

CICS installs the following terminal control resource definitions from the global catalog:

vAll permanent terminal devices, originally installed from explicit resource definitions, and profiles.

vThe following autoinstalled APPC connections:

–Synclevel-2-capable connections (for example, CICS-to-CICS connections)

–Synclevel-1-capable, limited resource connections installed on a CICS that is a member of a VTAM generic resource.

Other autoinstalled terminals are not recovered, because they are removed from the warm keypoint during normal shutdown. This ensures that their definitions are installed only when terminal users next log on after a CICS restart that follows a normal shutdown.

When a multiregion operation (MRO) connection is restored, it has the same status that was defined in the CSD. Any changes of status, for example the service status, are not saved on the global catalog, so are not recovered during a warm or emergency restart.

Only the global catalog is referenced for terminals defined in the CSD.

To add a terminal after initialization, use the CEDA INSTALL or EXEC CICS CREATE command, or the autoinstall facility. To delete a terminal definition, use the DISCARD command or, if autoinstalled, allow it to be deleted by the autoinstall facility after the interval specified by the AILDELAY system initialization parameter.

TCAM and sequential (BSAM) devices

Terminal control information for TCAM and sequential terminal devices is installed from the terminal control table (TCT).

CICS installs TCAM and sequential terminal resource definitions as follows:

vSame TCT as last run. CICS installs the TCT and then modifies the terminal entries in the table by applying the cataloged data from the terminal control warm keypoint from the previous shutdown. This means that, if you reassemble the TCT and keep the same suffix, any changes you make could be undone by the warm keypoint taken from the catalog.

58CICS TS for z/OS 4.1: Recovery and Restart Guide