The input to ICKDSF when you format the volume.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Peter [dbajava...@gmail.com] Sent: Sunday, July 5, 2020 12:22 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Vtoc and index sizing based on Mods Hello Thank you so much How do we determine the location of vtoc and index ? Is it possible to place all the mod 27 in same location of cylinder and tracks ? On Sat, 4 Jul, 2020, 9:44 PM Lizette Koehler, <stars...@mindspring.com> wrote: > It depends > > If the volume would have one dataset on it, like my SPOOL Volumes, then > they are very small > > If like in my TSO Pool there are lots of tiny (15 track or less) then I > make them huge. > > So it all depends on > > What the intent of the volume is (1 dataset vs Many Datasets) > What size the volume is (Mod3/9/27/54/EAV) > > You will see an error message when the VTOC or VTOIX is too small. > > > > Hope this helps > > Lizette > > > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf > Of Peter > Sent: Saturday, July 4, 2020 10:12 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Vtoc and index sizing based on Mods > > Hello Group > > Apology for being ignorant. > > Is there a formula or any constraints for initialising a specific dasd Mod > ? > > How do arrive to a specific vtoc and index value while initialising a dasd > ? > > Please help me to understand > > Peter > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- 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
