On Sat, Feb 16, 2013 at 3:35 PM, Edward Jaffe <[email protected]> wrote: > On 2/16/2013 11:04 AM, Mike Schwab wrote: >> >> A is when you get to EAVs with Cylinder Allocations. >> 9 is non-EAV without Cylinder Allocation areas. > > > The problem with this theory is that EAV is a z/OS software concept only. It > does not apply to other operating systems. More to the point, the hardware > doesn't know about track-managed space, cylinder-managed space, break-point > values, etc; it knows only about the size of the volume in cylinders (or > Mod1 multiples). Yet, the DS8100 (2107) hardware console--whose display I > would paste in if IBM-MAIN allowed anything other than plain text--shows > 3390-9 as the model number for the "Mod-51" volume and shows 3390-A as the > model number for the "Mod-81" volume. > > -- > Edward E Jaffe
But they did code into the DS8### the number of cylinders for the Mod 3, Mod 9, 32K cylinders, 64K cylinders, the 2 bit EAV limit, and now the 4 bit EAV value. -- 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
