Creating POSZLINK

Because of PDSE sharing requirements, consider making a unique copy of this library for exclusive production use on each individual target z/OS image on which RTCS is to be started. Alternatively, you can use a single data set, shared among all members of a single sysplex.

For more information about production libraries,their advantages, and about sharing this library in a sysplex, see Runtime-production-libraries.

The following requirements apply when creating POSZLINK:

  • The POSZLINK library that you create must be a PDSE library.
  • The low-level index of the DSNAME selected for this production library should be POSZLINK or OSZLINK.
  • The name of the data set that you create will need to be specified in the RTCS Initialization member in the POSZLINK parameter if its low-level index is not POSZLINK or OSZLINK.
  • Because it will be dynamically allocated by the RTCS Allocator (OSZMOSYS) to the RTCS subsystem address space using only its DSNAME, this library must be cataloged.

  1. Allocate and copy the target SMP/E RTCS product program library (TOSZLINK) into a new POSZLINK PDSE.

    You can customize the sample JCL shown in the following figure.
    The text that should be customized is shown in bold. This sample JCL is contained in member OSZINJ73 in the TOSZCNTL target library.

    //OSZINJ73 JOB (acct),'CREATE POSZLINK PDSE',
    //             MSGLEVEL=(1,1),CLASS=A,TIME=1
    //*
    //*  acct      JOB statement accounting information
    //*  zzzzzz    VOLSER on which to allocate .POSZLINK PDSE
    //*  tlibprfx  DSN prefix of RTCS SMP/E target libraries
    //*
    //ALLOC   EXEC PGM=IEFBR14
    //*
    //*  Allocate a new non-SMS-managed cataloged PDSE for
    //*  the RTCS Product Library. This data set may be
    //*  SMS-managed, but the JCL will have to be changed
    //*  to allocate an SMS-managed data set. There is no
    //*  particular need for the library to be SMS-managed.
    //*  This data set CAN be shared by more than one system
    //*  if MVS sysplex PDSE sharing requirements are met.
    //*
    //OSZLINK   DD DSN=SYS2.RTCS.POSZLINK,
    //             DISP=(NEW,CATLG),
    //             UNIT=3390,VOL=SER=zzzzzz,
    //             DSNTYPE=LIBRARY,SPACE=(CYL,(35,5,01)),
    //             DSORG=PO,RECFM=U,LRECL=0,BLKSIZE=23476
    //*
    //COPY    EXEC PGM=IEBCOPY,TIME=1,REGION=4M
    //*
    //*  Copy SMP/E Target RTCS Product LIBRARY
    //*  to the newly-allocated 'production' PDSE.
    //*
    //SYSPRINT  DD SYSOUT=*
    //TOSZLINK  DD DISP=SHR,DSN=tlibprfx.TOSZLINK
    //OSZLINK   DD DISP=SHR,DSN=*.ALLOC.OSZLINK
    //SYSIN     DD *
              COPY INDD=((TOSZLINK,R)),OUTDD=OSZLINK
    //*


Related topic

Manually-configuring-RTCS


 

Tip: For faster searching, add an asterisk to the end of your partial query. Example: cert*