zOs/TX/WK957

          * membercluster geht vergessen
          * neu member cluster
creDb trg 0
+ ok creDb DSN.TX.GENF(WK957t0) ::f
creDb src 3
+ ok creDb DSN.TX.GENF(WK957s3) ::f
manual dbx ... run
+ ok   dbx ... run
          * segmented => member cluster
creDb trg 1
+ ok creDb DSN.TX.GENF(WK957t1) ::f
creDb src 3
+ ok creDb DSN.TX.GENF(WK957s3) ::f