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.
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