We write programms for the MVS plattform. Can I use the special Register sort-control with syncsort? I will use a Dataset to put in a line like Option Core=Max, filsz=e1234567, avgrlen=322 to override the parameters of syncsort. I will improve the performance of our sorts. After or before the cobol-sort i will clear this dataset and set the best parameters for the next sort. Is this possible for syncsort?

The problem, we don't know, if our customers use DFSORT or SYncsort. So my next question is, there is the DFSPARM DD DSN=.... statement for DFSORT. SYNCSORT seems to use $ortparm DD DSN=...

Is there one statement I can use for both sortprogramms, or must I change?

In the Best, I will use dynamic allocated Datasets, and write in my options to perform our sorts. We invoke sorts in our cobolprogramms. so I will give the best parameters for the sort. We can't use external sorts.

Is there a parameter to influence the average length, so that syncsort can approximate the best using of space? Our customers have sometimes problems with her allocation space. sortwks are to big.

Can I influence the hiperspace with some parameters?

regards jörg