No no no.  We're all confused!

*My* mod 27's are 32,760 cylinders.

Course we all know there is no such thing as a mod 27 and they are really 
3390-9 of a larger size, which can be any size.
All made up :)


Marcy 

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-----Original Message-----
From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf 
Of Rob van der Heij
Sent: Wednesday, February 10, 2010 12:49 PM
To: [email protected]
Subject: Re: [IBMVM] Number of MOD-27 Cylinders for a z/Linux guest

On Wed, Feb 10, 2010 at 6:38 PM, zMan <[email protected]> wrote:

> Right, my guess is that someone said "27 = 3 x 9 = 3 x 10016 = 30048". Then
> they added one for cyl0, then they got confused about origin 0/origin 1 and
> wound up at 30050.

Who's confused? A 3390-3 at 3339 cylinders, one for CP and an almost
full pack mini disk is 3338 cylinders.
So 3390-27 is 30051 cylinders. If you give the guest a pseudo full
pack, that's minus one for CP, so 30050

Rob

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