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  • 1.  Ideas to deploy TSS

    Posted May 27, 2021 08:12 AM
    How to deploy tss and many other products without jcl changes, no new sysres etc

    Use IDCAMS to define symbolic alias datasets
    Extended Alias Support

    e.g.

    ALIAS --------- HLQ.TSS.ALIAS.CAKOLINK
    IN-CAT --- CAT.ASDF
    ASSOCIATIONS
    SYMBOLIC-HLQ.TSS.&VERSTSS..&DATETSS..CAKOLINK
    RESOLVED-HLQ.TSS.R15.D190427K.CAKOLINK

    use such alias datasets in jcl e.g. cics dfhrpl, TSO, ISPF Libdef 
    but not in APF,LPA, linklist - use symbols there HLQ.TSS.&VERSTSS..&DATETSS..CAKOLINK , because aliases cannot be resolved there

    define in ieasymxx &VERSTSS, &DATETSS Symbols
    So you can use same jcl in different lpars and point with symbols to different tss levels , versions.

    If you Steplib to such a Dataset the alias is resolved when the jobstep starts. So the Conversion System does not matter. This is not the case if you use an initiator with syssym=allow and put the dataset with symbols into jcl.

    To fallback to an older version simply change the symbol and ipl. Or if the product allows restarts IEASYMUP Util is helpful

    T.