Don't forget about XDAP ... that still works, as an alternative to using access methods :) Of course XDAP is 24-bit only (for the most part).
On Sun, Nov 12, 2023 at 8:11 PM Martin Trübner < 0000047eec287bd9-dmarc-requ...@listserv.ua.edu> wrote: > I wrote code that did it and it saved considerable time. > > > Here is the setting/requirments > > > the processing programs can not be changed. > > the program skips records till the first correct record is read- then > does one after the other till out of range or EOF. > > The file is FBS (created under VSE which does not support DISP=MOD) > > The file needs a full 3390 mod 27 (or bigger) > > > Solution: a POST-OPEN Vendor exit which manipulated the DTFSD such that > the next (first) read is way into the file. > > > Problem I ran into: multiextent-files (there is no way to tell the > op-sys to open the n-th extent of a sequential file during above > mentioned exit). This was no real restrictiooon since the file had its > own disk anyway - so creating it with singe extent on a disk was easy. > > > Martin > > ---------------------------------------------------------------------- > 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
