IBM SC34-7012-01 Server User Manual


 
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:
v All permanent terminal devices, originally installed from explicit resource
definitions, and profiles.
v The 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:
v Same 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.
58 CICS TS for z/OS 4.1: Recovery and Restart Guide