RTCS target libraries

The RTCS product family uses a limited number of target libraries. The Installation System manages the set of distribution and target libraries for installation and maintenance of products.

Related topic

Target-libraries

RTCS-product-libraries

The following table describes the RTCS target libraries:

Library name

Description

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 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.

 

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