RTCS target libraries

RTCS subsystem program library (TOSZRTCS) 

• This library is used only during RTCS subsystem initialization by the RTCS Initiator address space. After the RTCS kernel is initialized, this library is dynamically deallocated, and it is not referenced again until the RTCS kernel is refreshed.
• The TOSZRTCS library must be a PDSE.
• You can use the library as it is in the RTCS Initiator PROC and it must be defined in the STEPLIB DD statement.
• This library contains only RTCS subsystem PM3 (IBM DFSMS/MVS Release 4 compatible) program objects.

RTCS product program library (TOSZLINK) 

• This library is referenced and validated by the RTCS Initiator, which records its DSNAME. However, no programs in the library are executed during RTCS subsystem initialization. When an RTCS component is executed in a started task or batch job the data set is dynamically allocated by the RTCS Generalized Server program (OSZEXEC[n]).
• The TOSZLINK library must be a PDSE.
• You can use the library as it is by specifying its DSNAME in the POSZLINK option in the RTCS initialization member of Logical PARMLIB.
• This library contains RTCS component PM3 (DFSMS/MVS release 4 compatible) program objects and do not contain any RTCS subsystem code.

RTCS hypertext document library (TOSZHTML) 

• The members are HTML documents and binary byte-stream files.
• The library contains variable-length record files that are used by RTCS utilities, product address spaces, and batch address spaces. RTCS batch utility programs, such as the Registry Import Utility, reference members of this library.
• If required, the library is dynamically allocated by the RTCS Generalized Server in a started task or in batch.
• The library is also used in a DD statement in the JCL that executes certain RTCS utility programs in batch. The data set remains allocated to the Generalized Server or batch address space until it continues to execute. This data set is dynamically allocated by the RTCS Initiator address space to verify its existence and some of its contents, but it is not allocated by the RTCS subsystem address space.
• Maintenance is more appropriate if this data set is allocated as a PDSE. This data set can be used as is by specifying its DSNAME in the POSZHTML option in the RTCS initialization member of Logical PARMLIB.

RTCS XML document library (TOSZRXML) 

• The RTCS Registry Maintenance Utility (RMU) makes use of the TOSZRXML library.
• The RTCS subsystem control address space and a Generalized Server address space never use this library because it only contains XML documents that are used in the initial setup of the RTCS system registry.
• The DSNAME of this library must be specified in a SET statement in the SYSIN input stream each time the RTCS RMU is executed. For more information, see RTCS registry maintenance.

Sample JCL and parameter library (TOSZCNTL) 

• The TOSZCNTL library contains several samples that you can use to configure the RTCS started task PROCs and the RTCS initialization member.
• The library also contains sample JCL to execute the RTCS RMU and sample parameter input members for RTCS registry definitions.
• After you install RTCS and a target z/OS image is configured to run RTCS, some of the following TOSZCNTL library members are useful:
  • OSZ$INIT
  • OSZ$RTCS
  • OSZ$EXEC
  • OSZ$REGI
  • OSZRBACK
  • OSZRREST
  • OSZSCHED

For more information about each member, see TOSZCNTL library members.