Are you talking about new data sets or existing ones? What do you mean by data sets being grouped? What data class attributes would you like to be dependent on the size of the data set.
The ALTER command cannot change the data class of an existing data set. Even if it is possible with another utility, changing the data class would have no effect on the other data set attributes stored in the catalog and VVDS. What would you hope to accomplish? The data class ACS routine has access to the &SIZE and &MAXSIZE read-only variables. You can use them as part of the decision process for assigning a data class to a new data set. The management class and storage class ACS routines would have access to this decision and could use that when making their assignments. But those routines would also have access to the variables and could use them directly. What is your real intent that you think different data classes will satisfy? > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Buckton, T. (Theo) > Sent: Tuesday, March 29, 2016 7:04 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Dataclases according to data set sizes > > Hi, > > I have thousands of VSAM RR data sets that are grouped according to their sizes, which > comes to about 9 groups or data classes. It is not too much work to create the 9 data classes, > but to code these thousands of data sets according to NODE3 in the ACS routines seems a > bit too hectic. Is there perhaps a smarter way to do this? > > Note: We are rolling out z/OS 2.2 which I am studying for any enhancements related to this > query. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
