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
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 Mike Schwab Sent: Thursday, July 21, 2016 11:36 AM To: [email protected] Subject: Re: DEVTYPE INFO=DASD > FFF00000 000FF000 00000100 08000000 x'FFF0' would be 65520 cylinders. x'000F' would be 15 tracks per cylinder. Reasonable for a 3390-54. On Thu, Jul 21, 2016 at 9:00 AM, Reichman Joseph <[email protected]> wrote: > Hi > > I was looking for the capability on a dasd device > > > DEVTYPE (R6),(AREA,L'AREA),INFOLIST=ILIST2 > > ILIST2 DEVTYPE INFO=DASD > > AREA DS XL16 > > This was the data returned in area R15 = 0 > > FFF00000 000FF000 00000100 08000000 > > > > DASD Returns 16 bytes as follows: > > Bytes 0-3 Number of cylinders on the device, excluding alternates. For a VIO > data set, this number is the number of simulated cylinders needed to contain > the data set. > > Bytes4-7 Number of tracks per cylinder. > > > Seems to indicate over 4 million cylinders and over 100,000 tracks on the > volume ? > > > 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 > > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
