http://publibz.boulder.ibm.com/epubs/pdf/dgt3s310.pdf z/OS 2.2 version, layout on page 281 (302 of 532). Looks like significant changes with z/OS 1.10 for CYL>64K.
On Thu, Jul 21, 2016 at 12:58 PM, Reichman Joseph <[email protected]> wrote: > 7.2.15 Marked DEVTYPE- info form from DFSMSdfp "Advanced Services" z/os > V1R10.0 > > Joe Reichman > Joe Reichman > > IT Specialist > Master Files Division > New Carrollton Federal Building, B7-182 > OS:CTO:AD:CP:I:IB > Flex M,T,Th,F > Home office (240) 863 - 3965 > Office (240) 613-4350 > Cell (917) 748-9693 > TOD M - F 7:30 am - 4:00 pm > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Elardus Engelbrecht > Sent: Thursday, July 21, 2016 12:52 PM > To: [email protected] > Subject: Re: DEVTYPE INFO=DASD > > Reichman Joseph wrote: > >>The doc says bytes 0 - 3 is cylinders bytes 0 -3 is FFF00000 and bytes 4 - 7 >>000FF000 is tracks per cyl ? am I misreading misunderstanding the >>documentation > > What docs? Could you be kind to give us the URL of that source of above info > and docs? > >> I was looking for the capability on a dasd device DEVTYPE >> (R6),(AREA,L'AREA),INFOLIST=ILIST2 >> ILIST2 DEVTYPE INFO=DASD >> AREA DS XL16 > > Hmmm, interesting application of that useful macro. I must try out this > little gem next week on my z/OS v2.1 sandbox when I'm returning to my bread > and butter work... ;-) > >> This was the data returned in area R15 = 0 >> FFF00000 000FF000 00000100 08000000 > > On what z/OS level were you trying to try out that Assembler snippet? How did > you obtained the contents of that R15? Via a dump or a MVC or something else? > > >>Mike Schwab wrote: > >>> FFF00000 000FF000 00000100 08000000 >>x'FFF0' would be 65520 cylinders. x'000F' would be 15 tracks per cylinder. >>Reasonable for a 3390-54. > > Indeed. > > Groete / Greetings > Elardus Engelbrecht > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
