While I am not certain of any "magical" incantations, if you update the DATACLAS for the existing data sets with the desired EATTR value then, during a DSS COPY, the new allocation of these data sets should be allocated with the new EATTR value you defined. You could also define a new DATACLAS, do a DSS COPY with RENAMEU and have your ACS routines assign the new DATACLAS based on the naming convention. And, as I have already seen mentioned, you can invoke DSS via an API and in EXIT 28 specify the EATTR value to be used for the target allocation. Finally, there is the undesired pre-allocation method. As far as I know these are the only ways to modify EATTR via the use of DSS.
Justin Eastman IBM DFSMSdss Development ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html