No; you get the extents as allocated, not as requested. Then there's the EAV issue.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Paul Gilmartin <0000000433f07816-dmarc-requ...@listserv.ua.edu> Sent: Tuesday, December 4, 2018 1:45 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Examples of roll your own "LIKE()" for data sets? On Tue, 4 Dec 2018 11:41:43 -0600, Kirk Wolf wrote: > >Are there examples in CBT of code that do similar analysis of DASD >datasets? Even something that does a good job at deducing >SPACE=(unit,(pri,sec)) is not as simple as one might think. > AVGREC adds to the chaos. If the initial allocation was performed in multiple extents, is there any way to retrieve the initial request? HSM MIGRATE/RECALL can coalesce extents, further obscuring the initial request. I have used ISPF to capture the attributes of a data set; changed only the DSN, then allocated. The new data set was smaller because ISPF? Allocation? applied a correction for 3380/5590 capacity ratio. (I understand this is optional, but our site had it turned on.) I'd like to be able to code "BLKSIZE=0,SPACE=(1,10000000000),..." and let allocation and SDB figure it out. They're only trying to help me. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
